CAS Number: 9011-18-1
Test/Characteristic | Limit | Test Method |
Appearance | Comparable to ref | EP |
Turbidity, NTU | ≤ 5.0 | EP |
Identification, IR | Complies | EP |
Molecular weight, Dalton | 9000-20000 | EP |
Sulphur content, % S | 16.0-19.0 | Internal |
Specific optical rotation; ° | +90 to +105 | EP |
Absorbance | To be noted | EP and USP |
Loss on drying, % | ≤ 7 | EP and USP |
pH, (1 % w/v sol) | 5.5-8.0 | EP |
Free sulphate; % | ≤ 2 | Internal |
Heavy metals, ppm | To be noted | USP |
Microbial Contamination: | ||
TAMC | ≤ 100 cfu/g | Internal |
TYMC | ≤ 100 cfu/g | Internal |