Items

Specification

Appearance

A white or yellowish-white powder 

Specific optical rotation

+21°~+24°

Infrared absorption

Consistent with the CRS

Color reaction

The sample solution decolorizes dichlorophenol-indophenol TS

Color reaction

The sample solution decolorizes 2,6-dichlorophenol-indophenol sodium solution

Appearance of Solution

Clear,not more intense than BY4

Specific optical rotation

+21°~+24°

+21°~+24°

Lead

≤2.0mg/kg

Melting range

107~117℃

Loss on drying 

≤1.0%

≤2.0%

Sulphated ash

≤0.1%

Residue on ignition

≤0.1%

Residual solvent

≤0.5%

Heavy metals

≤0.001%

Assay

98.0%~100.5%

98.0%~100.5%

Odor

Without caramel smell

Thermo tolerance

Not more intense than BY4

Lead

≤0.5mg/kg

Cadmium

≤1.0mg/kg

Arsenic

≤1.0mg/kg

  Mercury

≤0.1mg/kg

Total plate count

≤100cfu/g

Yeast & Mold

≤10cfu/g

E.Coli

Negative

Salmonella

Negative

S.Aureus

Negative