L-Cysteine
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| Post Date: | Jul 16,2013 |
| Expiry Date: | Jul 16,2014 |
| Detailed Description: |
Cas No. :200-158-2
The COA of L Cysteine
Item Limit Result Description White crystals or crystalline powder Conforms Identification Infrared absorption spectrum Conforms Specific rotation[a]D20° +8.3°~+9.5° +8.4° State of solution ≥95.0% 96.0% Chloride (Cl) ≤0.04% Conforms Ammonium (NH4) ≤0.02% Conforms Sulfate (SO4) ≤0.030% Conforms Iron (Fe) ≤10PPm 6PPm Heavy metals (Pb) ≤10PPm 6PPm Arsenic (As2O3) ≤1PPm Conforms Loss on drying ≤0.5% 0.33% Residue on ignition (sulfated) ≤0.1% 0.06% Assay 98.0 ~ 101.0% 99.5% PH 4.5 ~ 5.5 5.0 Conclusion: The test result of the above mentioned product meets AJI92 standard. |
| CAS Registry Number: | 200-158-2 |
| Synonyms: | ;Cysteine, L-;L-(+)-Cysteine;L-Alanine, 3-mercapto-;L-Cys;NSC 8746;L-Cysteine;(+)-2-Amino-3-mercaptopropionic acid;L-beta-mercaptoalanine;L-Cysteine Free Base Crystalline;(S)-(-)-Cysteine;L-Cysteine Base;H-Cys-OH; |
| Molecular Formula: | C3H7NO2S |
| Molecular Weight: | 121.15 |
| Molecular Structure: | 
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| Hazard Symbols: |  Xn:Harmful; |
| Risk Codes: | R22:; R36/37/38:; |
| Safety Description: | S26:; S37/39:; |
| Company: | zexing amino acid Co,.Ltd [ China ] |
| Contact: | Danae |
| Tel: | 86-0311-87315132 |
| Fax: | 86-0311-87315125 |
| Email: | Danaexzx@gmail.com |
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