China L-Cysteine HCl Monohydrate CAS 7048-04-6, Find details about China Amino Acids, L-Cysteine HCl Monohydrate from L-Cysteine HCl Monohydrate CAS 7048-04-6
Items | Specifications |
Appearance | White crystalline powder |
Assay % | 99.0~102.0 |
Specific rotation | +5.0°~+8.0° |
State of solution, % | ≥ 98.0 |
Chloride(as Cl),% | 19.89~20.29 |
Ammonium (as NH4),% | ≤ 0.02 |
Sulphate (as SO4),% | ≤ 0.020 |
Iron(as Fe), ppm | ≤ 10 |
Heavy metals (as Pb), ppm | ≤ 10 |
Arsenic(as As2O3), ppm | ≤ 1 |
Other amino acids | meets the requirements |
Loss on drying, % | 8.5~12.0 |
pH value (1.0g/20mL water) | 1.5~2.0 |