α-Lipoic Acid NEW

Appearance

Slightly yellow crystal powder

Assay,%

99~101

Identification

Meets the requirements

Melting point

60~62℃

Loss on drying,%

≤0.20

Residue on ignition,%

≤0.10

Specific rotation

-1.0° to + 1.0°

Heavy Metals

≤10ppm

Lead

≤3ppm

Cadmium

≤1ppm

Mercury

≤0.1ppm

Chromatographic purity

Single Impurity

≤0.10

Total Impurities

≤2.0

Limit of polymer content

Confirms

Residual Solvent By GC

Cyclohexane

≤1000ppm

Ethyl Acetate

≤250ppm

Toluene

≤20ppm

Total plate counts

≤1000 CFU/g

Moulds and Yeasts

≤100 CFU/g

E.coli/Salmonella

Absence/g

Staphylococcus aureus

Absence/g

Particle Size

100% through 40 mesh