L-Cystine
ALDRICH/779539 - produced by Wacker Chemie AG, Burghausen, Germany, ≥98.5%
Synonym: (R,R)-3,3′-Dithiobis(2-aminopropionicacid)
CAS Number: 56-89-3
Empirical Formula (Hill Notation): C6H12N2O4S2
Molecular Weight: 240.30
EC Number: 200-296-3
MDL Number: MFCD00064228
Linear Formula: [-SCH2CH(NH2)CO2H]2
Product Type: Chemical
| anion traces | chloride (Cl-): ≤200 ppm |
| sulfate (SO42-): ≤300 ppm | |
| assay | ≥98.5% |
| cation traces | As: ≤1 ppm |
| Fe: ≤10 ppm | |
| Pb: ≤5 ppm | |
| form | powder |
| grade | produced by Wacker Chemie AG, Burghausen, Germany |
| ign. residue | ≤0.1% |
| impurities | ≤0.02% ammonium |
| ≤0.2% ninhidrin positive substances (each) | |
| ≤10 ppm heavy metals | |
| InChI | 1S/C6H12N2O4S2/c7-3(5(9)1 |
| InChI key | LEVWYRKDKASIDU-IMJSIDKUSA |
| loss | ≤0.2% loss on drying |
| mp | >240 °C (dec.) (lit.) |
| optical activity | [α]/D -224 to -218° |
| reaction suitability | reaction type: solution phase peptide synthesis |
| SMILES string | N[C@@H](CSSC[C@H](N)C(O)= |
| suitability | clear, colorless for appearance of solution |
| Application: | |
| General description: | |
| General description: | This product is supplied from Wacker FERMOPURE® material, but is sold for R&D use only, not for drug, household or other uses. |
| Legal Information: | FERMOPURE is a registered trademark of Wacker Chemie AG |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98.5% |
| mp | >240 °C (dec.) (lit.) |
| UNSPSC | 12352209 |