Cysteine base L-Cysteine Cysteine
1. GMP AVALIABLE ;
2. IN STOCK
3. FAST REPLY
QUALIFED ; EFFICIENCY; RESPONSIBLE
ITEMS |
SPECIFICATION |
RESULTS |
Specific rotation [a]D20- |
+8.3°~+9.5° |
+9.15° |
State of solution |
≥95.0% |
98.6% |
Chloride (Cl) |
≤0.02% |
0.012% |
Ammonium(NH4) |
≤0.02% |
0.010% |
Sulphate(SO4) |
≤0.03% |
0.015% |
Iron(Fe) |
≤10ppm |
3ppm |
Arsenic(As2O3) |
≤1ppm |
0.1ppm |
Heavy Metals (Pb) |
≤10ppm |
3ppm |
Loss on drying |
≤0.5% |
0.28% |
Residue on ignition |
≤0.10% |
0.07% |
Other amino acids |
Conforms |
Qualified |
Assay |
98.5% ~ 101.0% |
99.8% |
pH |
4.5 ~5.5 |
4.9 |
Conclusion: The product complies with AJI92 standard |
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