ITEMS

SPECIFICATIONS

Appearance

White or whitish powder

Assay (HPLC)

≥98.00%

Purity (by HPLC, % area)

≥99.00%

Identification

Corresponds qualitatively to the reference

Specific rotation

+139°~+145°

pH (2% aqueous solution)

6.0-8.0

Loss on drying

≤1.00%

Residue on ignition

≤1.00%

Light transmittance

≥98.00%

Chloride

<0.05%

Lead

<10ppm

Arsenic

≤2ppm

Mercury

≤1ppm

Cadmium

≤5ppm

Total plate count

<100cfug

Molds and Yeast count

<50cfu/g

Thermotolerant  coliforms

Negative

Pseudomonas  aeruginosa

Negative

Staphylococcus aureus

Negative