Home > Offer to Sell > Pharmaceuticals and Biochemicals > Vitamin, amino acids and coenzymes > L-Cysteine baseCas No.:52-90-4
L-Cysteine baseCas No.:52-90-4
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| Post Date: | Mar 15,2014 |
| Expiry Date: | Sep 11,2014 |
| Detailed Description: |
Cas No. :52-90-4
Price:18 USD Kilograms Quality Standard: AJI97 Description: white crystals or crystalline powder. Solubility (H2O, g/100g): about 16(20°) Specific rotation: +8.3 to +9.5° State of solution(transmittance): Not less than 95.0% Chloride: Not more than 0.04% Ammonium: Not more than 0.02% Sulfate: Not more than 0.030% Iron: Not more than 10ppm Heavy metals(Pb): Not more than 10ppm Arsenic: Not more than 1ppm Other Amino Acids: conforms Loss on drying: Not more than 0.5% Residue on ignition(sulfated): Not more than 0.10% Assay: 98.0 to 101.0% PH: 4.5 to 5.5 Storage: Preserve in tight containers at controlled room temperature. Recommended limit: 1 year |
| CAS Registry Number: | 52-90-4 |
| 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: | Hubei Yuancheng Saichuang Technology Co., Ltd. |
| Contact: | Cynthia |
| Tel: | +86-027-88323091 |
| Fax: | |
| Email: | service02@chembj.com |
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