L-Cystine
SIGMA/C5735
Synonym: (R,R)-3,3′-Dithiobis(2-aminopropionic acid)
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
| application(s) | pharmaceutical (small molecule) |
| assay | ≥98.5% |
| biological source | non-animal source |
| form | powder |
| impurities | endotoxin, tested |
| InChI | 1S/C6H12N2O4S2/c7-3(5(9)1 |
| InChI key | LEVWYRKDKASIDU-IMJSIDKUSA |
| mp | >240 °C (dec.) (lit.) |
| Quality Level | 400 ![]() |
| SMILES string | N[C@@H](CSSC[C@H](N)C(O)= |
| solubility | 1 M HCl: 100 mg/mL |
| suitability | suitable for manufacturing use |
| technique(s) | cell culture | mammalian: suitable |
| General description: | Our SAFC® portfolio of high-quality raw materials for use in biopharmaceutical processing withstands strict quality control procedures plus the documentation and expertise to help our customers meet requirements as defined by the M-Clarity Program. M-Clarity Program ![]() Our comprehensive portfolio of upstream process chemicals not only provides biopharmaceutical manufacturers with high-quality raw materials for production of classical and novel therapies, but also helps them get to market faster and simplify regulatory challenges. Trust us to deliver supply chain transparency and reliable sourcing around the globe, streamlining your product qualification with best-in-class regulatory support and service. |
| Legal Information: | SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany |
| 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 |

