ITEM

SPECIFICATION

Description

White crystals or crystalline powder

Identification

A.B conform to standard

Clarity of solution

The solution is clear

Specific rotation

+158°~+165°

Residue on ignition

Not more than 0.5%

Limit of equilenin and equilin

According to USP29

Ordinary impurities

Meet the requirement of USP29

Residual solvents

Meet the requirement of USP29

Loss on drying

Not more than0.5%

Assay

97.0%~103.0%