Items

Standards

Results

Characteristics

an almost white or pale yellow powder

Almost white

Identification

positive reaction

positive reaction

Melting point

138—141°C

139.5-139.8°C

2—methyl—5—nitroimidazole

Precipitated have not muddily

PASS

Loss on drying

≤1%

0.44%

Sulphated ash

≤0.1%

0.05%

Assay(onthedried basis)

98%-101%

99.27%