Molekula
DL-Cysteine
DL-Cysteine is a sulfur-containing amino acid used in biochemical research, pharmaceuticals, and food additives. It functions as a reducing agent and precursor in protein synthesis. Available in powder form with a molecular weight of 121.16 g/mol, CAS number 3374-22-9, and molecular formula HSCH2CH(NH2)COOH. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies DL-Cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
DL-Cysteine is a sulfur-containing amino acid used in biochemical research, pharmaceuticals, and food additives. It functions as a reducing agent and precursor in protein synthesis. Available in powder form with a molecular weight of 121.16 g/mol, CAS number 3374-22-9, and molecular formula HSCH2CH(NH2)COOH. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies DL-Cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystals/ White crystalline powder |
| Conclusion | Conforms to AJ192 |
| Residue on ingnition | 0.05% |
| Arsenic | <1ppm |
| Loss on Drying | 0.10% |
| Assay | ≥99% |
| Iron | <5ppm |
| Heavy metal(Pb) | <5ppm |
| State of solution (10%) | 98.9% |
| Other amino acids | Chromotographically not detected |
| Methylene chloride | <0.10% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 3374-22-9 |
| Molecular Formula | HSCH2CH(NH2)COOH |
| Molecular Weight | 121.16 |
| SMILES | C(C(C(=O)O)N)S |
| REACH Code | Y110 |
| HTS Code | 29309092 |
| Tariff Code | 2930901300 |
Safety & GHS
-
Explosive
GHS01
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is DL-Cysteine used for?
DL-Cysteine is used as a reducing agent in biochemical research, a precursor in peptide synthesis, and in the production of pharmaceuticals and cosmetics.
What is the chemical formula and molecular weight of DL-Cysteine?
The formula is HSCH2CH(NH2)COOH with a molecular weight of 121.16 g/mol.
How should DL-Cysteine be stored?
Store at 2 to 8 °C in a tightly sealed container to prevent oxidation and degradation.
What grade of DL-Cysteine does Molekula supply?
Molekula supplies DL-Cysteine in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply DL-Cysteine in bulk?
Yes, Molekula can supply DL-Cysteine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a DL-Cysteine order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.