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You can see that in Acetaminophen (C8H9NO2), there are 8 Carbon atoms, 9 Hydrogen atoms, 1 Nitrogen atom and 2 Oxygen atoms. what is the molar mass of acetaminophen, C8H9NO2? Ozonation is a powerful technique to remove micropollutants from wastewater. Explanation of how to find the molar mass of C8H9NO2: Acetaminophen (Paracetamol).A few things to consider when finding the molar mass for C8H9NO2:- make sur. The structure of acetaminophen is (in figure), The group at the top of the molecule is a hydroxyl group. what is the molecular mass of acetaminophen c8h9no2. Copyright 2020 Andlearning.org The formula for this compound is C8H9NO2 and its extended formula is HOC6H4NHCOCH3 with a molecular weight of 151.165 g mol-1. Acetaminophen, an analgesic and antipyretic drug, has a molecular mass of 151.2 u and a mass percent composition of 63.56% C ,6.00% H, 9.27% N, and 21.17% O.
Solved -What is the molar mass of acetaminophen, C8H9NO2? - Chegg 0.00 . 2016-12-15 16:38:48 UTC Mass/ volume used 2.0126 g (1.08 g)/mol x 2.2 ml=2.376 g -. Structurally, acetaminophen is a relatively simple compound: A six-carbon benzene ring with two small chemical groups attached. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. To complete this calculation, you have to know what substance you are trying to convert. How are mass molar mass and number of moles of a substance related to each other? Similar to Aspirin, it was first synthesized in 1877 by Harmon but it was not used till 1893. (b) A tablet of Extra Strength Tylenol contains 500 mg acetaminophen. The N is a position indicator for the phenyl ring which is a benzene (C6H6) derivative. So in order to find the number of moles we know about fate and molecular weight.
What is the difference between atomic weight and molecular weight 81.078 g/mol c. 49 g/mol d. 41 g/mol e. None of the answers are correct., How many moles of aspirin, C9H8O4, are in a tablet that contains 325 mg of aspirin? What is the molecular formula for acetaminophen? This is a raw material that helps in preparing several other useful medicines. The first two columns on the left side of the periodic table are where thessubshells are being occupied. Everything you need for your studies in one place.
Acetaminophen Molar Mass (With Calculations) - Knords Learning Raw Material CAS 103-90-2 Panadol Acetaminophen Paracetamol Research After calculating the number of atoms, we have to add their mass multiplied by the times they are present in the atom, Molecular mass of compound = 12.0107 x 8 + 9 x 1.0078 + 1 x 14.0067 + 2 x 15.999. After this, the researcher found paracetamol in the urine of patients that were treated with phenacetin. Acetaminophen (C8H9NO2) is the active ingredient in many nonprescription pain relievers. By using this website, you signify your acceptance of Terms and Conditions and Privacy Policy. 3H + N2 2NH3 So if we have 63.56 g carbon, then we end up with 5.292 moles. 3.55 g Acetaminophen (CAUTION: p-aminophenol is hazardous to skin, concentrated HCl is caustic) Practical grade p-aminophenol contains impurities that must be removed at the begining of the synthesis. Enter the molecular formula of the substance. Hindi Yojana Sarkari. Two techniques were used in the determination of the mass of active ingredient present in the tablets. It has the chemical formula C8H9NO2, extended formula HOC6H4NHCOCH3, and IUPAC chemical name N-(4-hydroxyphenyl)acetamide.
Buy chemical product white powder Industrial Grade from Hongyan How many carbon atoms are in 0.85 mol of acetaminophen, C8H9NO2 - Quora Acetaminophen, C8H9NO2, is a Covalent compound And the active ingredient in several popular nonprescription pain medications, such as Tylenol.
Acetaminophen, also called paracetamol, drug used in the treatment of mild pain, such as headache and pain in joints and muscles, and to reduce fever. English Name: 4-Acetamidophenol CAS: 103-90-2 Molecular Weight: 151.163 Molecular Formula: C8h9no2 Boiling Point: 387.825.0 c at 760 Mmhg Density: 1.30.1 g/cm3
What is the molar mass of acetaminophen C8H9NO2? - Answers Determine the molar mass of acetaminophen (show your work). In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Acetaminophen is the generic name for the brand name medication Tylenol, made by McNeil Consumer. Determine which of the following contains the greatest mass of aluminum: 122 g of AlPO4, 266 g of Al2C16, or 225 g of Al2S3.
If you find that a molecule contains eight carbon atoms, nine hydrogen atoms, one nitrogen atom and two oxygen atoms is it safe to assume that the molecule is acetaminophen? Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
Paracetamol | C8H9NO2 | ChemSpider (a) Write the molecular formula of acetaminophen (see Fig. Hence the Molar mass of Acetaminophen (C8H9NO2) is 151.165 g/mol.
How to Calculate the Molar Mass of C8H9NO2: Acetaminophen - YouTube Molar mass of Acetaminophen (C8H9NO2) is 151.165 g/mol.
what is the molecular mass of acetaminophen c8h9no2 > This. Paul Flowers, Klaus Theopold, Richard Langley, Determine which of the following contains the greatest mass of aluminum: 122 g of AlPO. Poplar trees naturally make a very similar structure, called p-hydroxybenzoate, attached to lignin. What is the relative atomic mass of magnesium? Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg. COMPANY. No. Provied information about Acetaminophen (Molecular Formula: C8H9NO2, CAS Registry Number:103-90-2) ,Boiling Point,Melting Point,Flash Point,Density,NMR Specturm,Molecular Structure,Risk Codes,Synthesis Route at guidechem The molar mass of Carbon is 12.011 g/mol. To complete this calculation, you have to know what substance you are trying to convert.
Paracetamol 99% CAS 103-90-2 Purity Medical Raw Material Powder What is the molecular mass (amu) for this compound? What was the percent yield for ammonia in this reactio What is the difference between Tylenol and generic acetaminophen? Stop procrastinating with our smart planner features. var tr_would_you_like_to_opt_out = "Would you like to opt out from selling your personal informaion for the purpose of ads personalization? acetaminophen c8h9no2 pubchem Apr 24 2022 web acetaminophen c8h9no2 cid 1983 structure This site is using cookies under cookie policy . Calculate the relative atomic mass of this; magnesium has 3 isotopes. , What errors can you come across when reading a thermometer, How many Hydrogen atoms in the formula 4H3O2. Each tablet contains 500 mg of acetaminophen, and a typical adult dose is two tablets every eight hours. Jay is an educator and has helped more than 100,000 students in their studies by providing simple and easy explanations on different science-related topics. The reactants contain a t What is Acetaminophen? Convert between C8H9NO2 weight and moles Elemental composition of C8H9NO2 Formula in Hill system is C8H9NO2 Computing molar mass (molar weight) The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Acetaminophen, also known as paracetamol is a medicine used for mild pain relief. An undergraduate LC-MS experiment is described for the identification and quantitative determination of acetaminophen, acetylsalicylic acid, and caffeine in commercial analgesic tablets. Thus, they often have relatively simple empirical formulas. The chemical formula of acetaminophen. This site explains how to find molar mass.
Lidocaine Factory CAS 137-58-6 Lidocaine 100% Through Customs Its chemical formula is C8H9NO2. 1.). It will calculate the total mass along with the elemental composition and mass of each element in the compound. It is generally used to reduce pain or fever in children or adults. Convert grams C8H9NO2 to moles or moles C8H9NO2 to grams. This means that one mole of aspirin will have a mass of "180.157 g".
Acetaminophen C8H9NO2 Molecular Weight -- EndMemo Molar mass = grams/mole Acetaminophen, C 8 H 9 NO 2, is a covalent compound and the active ingredient in several popular nonprescription pain medications, such as Tylenol. Molecular weight 109.13 g/mol 102.09 g/mol 151.63 g/mol. 12.0107*8 + 1.00794*9 + 14.0067 + 15.9994*2, Note that all formulas are case-sensitive. This compound is also known as Acetaminophen. What is the molecular formula? Acetaminophen, also known as paracetamol is a medicine used for mild pain relief. This compound is also known as Acetaminophen. Any chemical element. Several classes of CECs . The solution contained 868.8 g of HCl. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The molecule that was chosen is Acetaminophen. Rosmarinus officinalis L. (rosemary) is an aromatic culinary herb. This study explored an enzymatic treatment
HRMS-Targeted-DIA methodology for quantification of wastewater-borne The molecule is not available in nature but it is prepared in the laboratory. Examples: Fe, Au, Co, Br, C, O, N, F. Short Answer.
Enzymatic post-treatment of ozonation: laccase-mediated removal of the It is used for the treatment of arthritis as well.
magnesium has three common isotopes SOLVED: A typical tablet if regular strength Tylenol - Numerade For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Finding molar mass starts with units of grams per mole (g/mol).
Acetaminophen - SpectraBase acetaminophen c8h9no2 pubchem, p aminophenol acetic anhydride acetaminophen acetic acid, synthesis of acetaminophen essay 1231 words bartleby, lab 2 what a pain . Pain Killer Powder for sale, Quality Lidocaine Factory CAS 137-58-6 Lidocaine 100% Through Customs on sale of Hanhong Medicine Technology (Hubei) Co., Ltd. from China. The molar masses are: C8H9NO2 = 151.163 g/mol. Acetaminophen (paracetamol) or according to IUPAC N-(4-hydroxyphenyl) ethanamide belongs to the antipyretic non-opioid analgesic, molecular formula C8H9NO2 and mass 151.18 g / mol 1 . , The equation below represents a chemical reaction that occurs in living cells. Molar mass of C8H9NO2 = 151.16256 g/mol Convert grams Acetaminophen to moles or moles Acetaminophen to grams Molecular weight calculation: 12.0107*8 + 1.00794*9 + 14.0067 + 15.9994*2 Percent composition by element Similar chemical formulas Note that all formulas are case-sensitive. A partially unscrewed bulb is generally safer than an empty socket which could ignite a spark if contacted by dust or lint. 12.0107*8 + 1.00794*9 + 14.0067 + 15.9994*2, Note that all formulas are case-sensitive. 94% of StudySmarter users get better grades. C8H9No2. Any chemical element. Now in Acetaminophen (C8H9NO2), there are 8 Carbon atoms, 9 Hydrogen atoms, 1 Nitrogen atom and 2 Oxygen atoms. Native to the Mediterranean region, it is currently cultivated worldwide. The molecular formula of acetaminophen is C 8 H 9 O 2 N. The Tylenol tablet contains 3. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. In other words, it is the mass of one mole of a particular substance.
Solved What is the molecular mass of acetaminophen, C_8 H_9 - Chegg This leads to two important facts. Carbon, 6 g hydrogen is 5.95 moles hydrogen, 9.27 g nitrogen is 0.6618 miles nitrogen and 21.17 g. C6H12O6 + 6O2 ------> 6CO2 + 6H2O + energy 2NaCl + What is the uses of acetaminophen c8h9no2? These relative weights computed from the chemical equation are sometimes called equation weights. Acetaminophen as a chemical formula of C8H9NO2.
Acetaminophen Formula - Molecular, Structural and Chemical Formula The molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain relievers, is C9H8O4.. Contact China Trader Hongyan Pharmaceutical Technology (Wuhan) Co., Ltd. for the product chemical product white powder. Typically, chemists might need to produce a certain amount (in mass) of a chemical for a consumer; This is when mole-mole and .
what is the molar mass of acetaminophen c8h9no2 show calculations Explanation of how to find the molar mass of C8H9NO2: Acetaminophen (Paracetamol).A few things to consider when finding the molar mass for C8H9NO2:- make sure you have the correct chemical formula.- always include the units for molecular weight (grams/mole).- make sure you do the math right - follow the order of operations.Watch: Molar Mass in Three Easy Steps: https://youtu.be/o3MMBO8WxjYNote that molecular weight, molar mass, and gram formula mass are all the same thing.Periodic Table Image from: https://commons.wikimedia.org/wiki/File:Periodic-table.jpgFinding the Molar Mass (sometimes called Molecular Weight although the units are different) of a compound is a essential skill for the chemistry topic of stoichiometry and the first step in converting from moles to grams (or grams to moles).For help with moles to grams conversions and more: More Moles to Grams Practice: https://youtu.be/aIv5nr8ZNyw Molar Mass in Three Easy Steps: https://youtu.be/o3MMBO8WxjY Understanding the Mole: https://youtu.be/DyLktMPTuHY Moles - Gram Conversions: https://youtu.be/aIv5nr8ZNyw How to Balance Chemical Equations: https://youtu.be/zmdxMlb88Fs Mole Ratio: https://youtu.be/i71BMVlrMiw Reaction Stoichiometry: https://youtu.be/rrTqOsZPpaUFor more chemistry help visit http://www.Breslyn.org .Drawing/writing done in InkScape (https://www.InkScape.org). Acetaminophen is paracetamol that is generally used as anti-inflammatory medicine and included in the list of essential WHO medicines needed in health systems.
Molar Stoichiometry AND MASS TO MOLE Conversion Created on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).
Q34P (a) Write the molecular formula [FREE SOLUTION] | StudySmarter . Track your food intake, exercise, sleep and meditation for free. So lets look at the molar mass of Carbon, Hydrogen, Nitrogen and Oxygen from the above periodic table. Calculate the chemical amount (in moles) of that compound in the tablet. What is the molecular mass (amu) for this compound? That is 128+19+216+14=151 g/mole. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction.
2: Synthesis of Acetaminophen (Experiment) - Chemistry LibreTexts So the weight of acetaminophen that is 3:25 mg so that is can according to Graham As one mg that is the conduct and is 4 -3 ground.
SOLVED:Acetaminophen, an analgesic and antipyretic drug, has a If you have a periodic table with you, then you can easily calculate the molar mass of Acetaminophen (C8H9NO2). June 10, 2022; By: Author gallaghers steakhouse wine list; teachers federal credit union debit card limit In SI, the unit for molar mass is kg/mol. 151.163 g/mol Paracetamol/Molar mass. February 27, 2023 By restaurants on the water in st clair shores By restaurants on the water in st clair shores It has the chemical formula C8H9NO2, extended formula HOC6H4NHCOCH3, and IUPAC chemical name N- (4-hydroxyphenyl)acetamide.
Mass Of Crude During Synthesis Lab Report - 1411 Words | 123 Help Me Solution Molecules of this compound are comprised of 13 carbon atoms, 18 hydrogen atoms, and 2 oxygen atoms. In acetaminophen , the formula is CHNO , the molar mass of it is obtained by adding atomic weights of carbon,hydrogen and oxygen multiplied by the superscripts respectively. Determine the molar mass of acetaminophen (show your work). Raw Material CAS 103-90-2 Panadol Acetaminophen Paracetamol Research Chemicals, Find Details and Price about Pharmaceutical Intermediates Organic Intermediates from Raw Material CAS 103-90-2 Panadol Acetaminophen Paracetamol Research Chemicals - Hongyan Pharmaceutical Technology (Wuhan) Co., Ltd. Acetaminophen (Paracetamol) Overdose - Emergency Medicine | Lecturio Paracetamol and Toxicity | Uses, Dosing, MOA, Metabolism, Antidote Part 1: Pharmaceutical Analysis - Definition, Types and Scope Assay of Paracetamol Raw material/ UV Paracetamol - Mechanism, Uses, Side-Effects, Dosage UV Vis
3.1 Formula Mass and the Mole Concept - OpenStax For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Right? * But the molecular weight of oxygen is 32. It was first prepared by H. N. Morse in 1878. Assume we have 100 g of the compound and the percentage becomes the mass of each element that we have. I hope you have understood the short and simple calculation for finding the molar mass of Acetaminophen. -What is the molar mass of acetaminophen, C8H9NO2? What are the functional groups in acetaminophen? The six-membered ring is an aromatic ring. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. Carbon C = 2 12.0107 g/mol = 24.0214 g/mol, Hydrogen H = 4 1.00794 g/mol = 4.03176 g/mol, Oxygen O = 2 15.9994 g/mol = 31.9988 g/mol, Molar mass = 24.0214 + 4.03176 + 31.9988 = 60.05196 g/mol. So, Molar mass of Acetaminophen (C8H9NO2) = Molar mass of 8 Carbon (C) atoms + Molar mass of 9 Hydrogen (H) atoms + Molar mass of 1 Nitrogen (N) atom + Molar mass of 2 Oxygen (O) atoms.= (12.011) 8 + (1.008) 9 + (14.007) + (15.999) 2= 96.088 + 9.072 + 14.007 + 31.998= 151.165 g/mol. Browse the list of When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. Finding the molar mass by means of calculating the sum of the atomic weight of the atoms, which form the compound multiplied by their numbers. The mass of one atom of carbon-12 the atomic mass of carbon-12 is exactly 12 atomic mass units.
what is the molecular mass of acetaminophen c8h9no2 Several beneficial effects have been described for rosemary, including antimicrobial and antioxidant activities. We use the most common isotopes. Convert grams C8H9NO2 to moles or moles C8H9NO2 to grams Molecular weight calculation: 12.0107*8 + 1.00794*9 + 14.0067 + 15.9994*2 Percent composition by element Similar chemical formulas Note that all formulas are case-sensitive. Counting the number of atoms of each element in the compound. Compound Acetaminophenwith free spectra: 11 NMR, 8 FTIR, 2 Raman, and 28 MS. C6H7NO + C4H6O3 = C8H9NO2 + CH3COOH You can specify conditions of storing and accessing cookies in your browser. The formula for acetaminophen, otherwise known as paracetamol, is C8H9NO2. Molecular mass of acetaminophen 151.16amu See the step by step solution Step by Step Solution TABLE OF CONTENTS Step 1-Counting number of Atom 43 amu b. , But an OH group attached to a benzene ring has special properties. Easy Ordering. You have no items in your shopping cart. Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element: 4. 3.343 * 10^(23)"molecules" Your strategy her will be to use the molar mass of aspirin to determine how many moles you have in that sample use Avogadro's number to convert the number of moles to number of molecules So, aspirin, "C"_9"H"_8"O"_4, has a molar mass of "180.157 g mol"^(-1). Each tablet contains 500 mg of acetaminophen, and a typical adult dose is two tablets every eight hours. Free and expert-verified textbook solutions.
C8H9NO2 - Wikipedia Informations about Acetaminophen (TMO-T0065-25mg) English Deutsch English; Cart. Acetaminophen can be synthesized when 4-aminophenol is treated with acetic acid under high temperatures. How do you address yourself in vietnamese. My Account . Calculate the empirical formula of the following polymers: (a) Lucite (Plexiglas); 59.9%C, 8.06%H, 32.0% O. (C8H9NO2, M. = 151/mol ) Practice Carbon makes up approx. Answer (1 of 5): Atomic weight is the mass of one mole of the given element. 76 amu c. 151 amu d. 162 amu e. 125 amu, Calculate the molar mass of sulfuric acid. Acetaminophen (paracetamol) or according to IUPAC N- (4-hydroxyphenyl) ethanamide belongs to the antipyretic non-opioid analgesic, molecular formula C8H9NO2 and mass 151.18 g / mol 1 . Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. It is soluble in boiling water, methanol, and ethanol but it does not dissolve in water, ether or benzene. Study with Quizlet and memorize flashcards containing terms like What is the molecular mass of acetaminophen, C8H9NO2? It is formed by combining an amide group and [] This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes.
what is the molecular mass of acetaminophen, c8h9no2 in amu The resultant alloys have very high strength-to-weight ratios. Molar mass of C8H9NO2 is 151.1626 g/mol Compound name is acetaminophen Get control of 2022! The molar mass of Hydrogen is 1.008 g/mol. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Theres no electrical danger to leaving a bulb partially unscrewed in a socket, but if its too loose, it could fall and shatter, which could be a hazard. We will start with the percent that is each element.
Acetaminophen | C8H9NO2 - PubChem However, chemists almost always express molar masses in g/mol for convenience.
The chemical formula of acetaminophen is C8H9NO2. If | Chegg.com You should know this and tell your family members, especially children, in case they replace a burned-out bulb when you arent aware of it. Acetaminophen, C8H9NO2 is a covalent compound and an active ingredient in several popular nonprescription pain medicines such as Tylenol, what is the molecular mass (amu) for this compound. By using this website, you signify your acceptance of Terms and Conditions and Privacy Policy.Do Not Sell My Personal Information Acetaminophen is a p-aminophenol derivative with analgesic and antipyretic activities. 7.34b).
a. common chemical compounds. of CO2 molecules In 0.25 mol- (0.256.02310^23) = 1.505710^23 number of CO2 molecules are present. Table 10: Mass of crude acetaminophen produce during synthesis. When 2.68 g acetaminophen dissolves in 45.3 g of solvent XYZ, the solution boils at 82.3 degrees celsius. Dexibuprofen. (moles) of acetaminophen produced, and is the limiting reagent. Acetaminophen C8H9NO2 Molar Mass, Molecular Weight.
Molecular weight of Acetaminophen - Convert Units Acetaminophen 103-90-2 - GuideChem As chemical oxidation of wastewater comes with the formation of varying, possibly persistent and toxic by-products, post-treatment of the ozonated effluent is routinely suggested. to determine the a molecular formula. a. If the average man weighs 70 kg, how many carbon atoms are in the average male body? Convert between C8H9NO2 weight and moles Elemental composition of C8H9NO2 Formula in Hill system is C8H9NO2 Computing molar mass (molar weight) So for that, have a look at the periodic table given below.
Archived Questions & Answers - Page 275 - Answer Happy What is the molecular mass of acetaminophen c8h9no2?
Determine the molar mass of acetaminophen - Brainly.com For example let's take oxygen: * The atomic weight of oxygen is 16. Now here we have to find the molar mass of Acetaminophen (C8H9NO2). 99% Purity High Quality Acetaminophen Paracetamol 4-Acetamidophenol Powder, No Customs Issues CAS: 103-90-2,Encontre detalhes sobre Pharmaceutical Intermediates, Organic Intermediates a partir de 99% Purity High Quality Acetaminophen Paracetamol 4-Acetamidophenol Powder, No Customs Issues CAS: 103-90-2 - Hongyan Pharmaceutical Technology (Wuhan) Co., Ltd. Answer: 151.16 amu Formula Mass for Ionic Compounds
Acetaminophen (TMO-T0065-25mg) at Hlzel-Diagnostika Some scientists believe that coronavirus (Covid-19) c - SolvedLib Acetaminophen Lab Mechanism . The "N" is a position indicator for the phenyl ring which is a benzene (C6H6) derivative. chemical reaction mechanism data a sample of 0 166 grams 0 0013 mol of p aminophenol was converted
Acetaminophen Composition and Molar Mass Miscellaneous Converters 1.30 grams of H are reacted with an excess of N to produce 4.21 grams of NH3- Question: The chemical formula of acetaminophen is C8H9NO2. C8H9NO2 molecular weight Molar mass of C8H9NO2 = 151.16256 g/mol This compound is also known as Acetaminophen.
Acetaminophen (C8H9NO2) is the active ingredient in many - Brainly Pain Killer Powder for sale, Quality Research Chemical Protonitazena HCl CAS 119277-01-6 Isotone Powder with 100% Safe Delivery USA Canada EU UK Australia on sale of Guangzhou Wanjiang Biotechnology Co., Ltd from China.