Phenylhydrazine
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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)
C6H5NHNH2 108.14 CAS RN: 100-63-0.-A colorless, or slightly yellowish, highly refractive liquid.
[NOTE-Protect from light, and distill under reduced pressure shortly prior to use.]
CONGEALING TEMPERATURE (651): not below 16°.
1 Insoluble Matter
Shake 1 mL with 20 mL of diluted acetic acid: the resulting solution is clear or practically so.
2 Residue on Ignition (Reagent test)
Ignite 1 mL with 0.5 mL of sulfuric acid: the residue weighs not more than 1 mg (0.1%).
