Molecular Formula: C3H7NO2S
Molecular Weight: 121.15
CAS No： 52-90-4
| L-Cysteine Base | AJI92 |
| Assay | 98.0～101.0% |
| PH | 4.5～5.5 |
| Specific rotation[a]D20 | +8.3°～ +9.5° |
| Specific rotation[a]D25 | / |
| Transmittance(T430) | ≥95.0% |
| Chloride(Cl) | ≤0.04% |
| Ammonium(NH4) | ≤0.02% |
| Sulfate(SO4) | ≤0.03% |
| Iron(Fe) | ≤10ppm |
| Heavy metals(Pb) | ≤10ppm |
| Arsenic | ≤1ppm |
| Other amino acids | conforms |
| Ninhydrin-positive substances | / |
| Loss on drying | ≤0.50% |
| Residue on ignition | ≤0.10% |
| Total plate count | ≤ 1000 CFU/g |
| Moulds & Yeasts | ≤ 100 CFU/g |
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