Aminoacetic Acid
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
(Glycine), NH2CH2COOH 75.07 CAS RN: 56-40-6.—White, crystalline powder. Very soluble in water; slightly soluble in alcohol.
• Nitrogen Content (Reagent test): Determine by the Kjeldahl method, using a test specimen previously dried at 105° for 2 hours: between 18.4% and 18.8% of N is found, corresponding to not less than 98.5% of C2H5NO2.
• Insoluble Matter (Reagent test): not more than 1 mg, from 10 g (0.01%).
• Residue on Ignition (Reagent test): not more than 0.05%.
• Chloride (Reagent test): One g shows not more than 0.1 mg of Cl (0.01%).
• Sulfate (Reagent test, Method I): Two g shows not more than 0.1 mg of SO4 (0.005%).
• Heavy Metals (Reagent test): 0.001%, 5 mL of 1 N hydrochloric acid VS being used to acidify the solution of the test specimen.
• Iron 〈241〉, Procedures, Procedure 1 (CN 1-Jun-2023) : One g, dissolved in 47 mL of water containing 3 mL of hydrochloric acid, shows not more than 0.01 mg of Fe (0.001%)
