Items

Standard

Characteristics

A white crystalline powder

Identification

(1)Reaction of physics and chemistry : positive
(2)Infrared ray absorption spectrum shall comply with approved tests

clear

100% methanol solution clear

Sieve Analysis

100% Pass 90 mesh

Drying on loss

≤4.0%

Bulk density

40 %~55%/100ml

Heavy metals

≤10ppm

Residue on ignition

≤1%

Assay

HPLC ≥90.0 %; 98.0 %