L-Cysteine, catalogue No. C7352, is a high-purity amino acid reagent supplied by MilliporeSigma / Sigma-Aldrich under the BioReagent product line. Chemically known as amino-3-mercaptopropionic acid, L-Cysteine is a sulfur-containing proteinogenic amino acid provided as a white crystalline powder with an assay of ≥ 98%. This non-animal source product is suitable as a supplement in serum-free and defined media formulations, particularly for mammalian cell culture, and can also be used in biochemical assays and buffer systems where a thiol component is required.
Advantages
- High-purity L-Cysteine (≥ 98%) from a non-animal source.
- Suitable as a cell culture media supplement for serum-free formulations.
- Useful reagent for biochemical assays, redox chemistry and buffer preparation.
- Crystalline powder form allows accurate weighing and dissolution.
- BioReagent quality with tested endotoxin levels for laboratory use.
Technical specifications
| Product name |
L-Cysteine, BioReagent |
| Catalogue number |
C7352 |
| Brand |
MilliporeSigma / Sigma-Aldrich |
| Chemical name |
L-Cysteine (amino-3-mercaptopropionic acid) |
| CAS number |
52-90-4 |
| Molecular formula |
C3H7NO2S |
| Molecular weight |
121.16 g/mol |
| Assay |
≥ 98% |
| Source |
Non-animal source |
| Form |
Crystalline powder |
| Typical uses |
Cell culture supplement; biochemical assays; buffer component |
| Solubility |
Soluble in water |
| Storage conditions |
Room temperature, tightly closed |
Available packaging options
| Pack size |
Form |
| 10 mg |
Crystalline powder |
| 25 g |
Crystalline powder |
| 100 g |
Crystalline powder |
| 1 kg |
Crystalline powder |
