Equilenin
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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)
C18H18O2 266.33 CAS RN®: 517-09-9.—Colorless or white crystals or crystalline powder. Insoluble in water; soluble in chloroform and in dioxane; moderately soluble in alcohol.
• Melting Range, Class II〈741〉: between 256° and 260°.
• Specific Rotation〈781〉: between +85° and +88°, determined in a solution in dioxane containing 75 mg of equilenin in each 10 mL.
• Absorption Maxima: An alcohol solution exhibits absorption maxima at 231, 282, 325, and 340 nm.
