Isopropylamine
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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)
(2-Aminopropane), C3H7NH2 59.11 CAS RN®: 75-31-0.-Clear, colorless, flammable liquid. Miscible with water, with alcohol, and with ether.
Assay: Transfer about 0.2 g, accurately weighed, to a suitable container, add 50 mL of water, and mix. Titrate with 0.1 N hydrochloric acid VS, using a mixture of bromocresol green TS and methyl red TS (5:1) as indicator. Each mL of 0.1 N hydrochloric acid is equivalent to 59.11 mg of C3H9N. Not less than 98% is found.
Boiling Range (Reagent test): Not less than 95% distills between 31° and 33°.
REFRACTIVE INDEX (831): between 1.3743 and 1.3753, at 20°.
