Pyrrole
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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)
C4H5N 67.09 CAS RN: 109-97-7.-Clear liquid, colorless when freshly distilled, becoming yellow in a few days. Specific gravity: about 0.94. Insoluble in water; soluble in alcohol, in benzene, and in ether.
Boiling Range (Reagent test): Not less than 90% distills between 128° and 132°.
