Molekula
L-Cisteína
L-Cysteine
L-Cysteine is a sulfur-containing amino acid used in biochemical research, pharmaceuticals, and food supplements for its role in protein synthesis and antioxidant activity. It is available as a white to off-white crystalline powder. CAS: 52-90-4, Molecular Formula: HSCH2CH(NH2)CO2H, Molecular Weight: 121.16 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies L-Cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Resumen
L-Cysteine is a sulfur-containing amino acid used in biochemical research, pharmaceuticals, and food supplements for its role in protein synthesis and antioxidant activity. It is available as a white to off-white crystalline powder. CAS: 52-90-4, Molecular Formula: HSCH2CH(NH2)CO2H, Molecular Weight: 121.16 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies L-Cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Precios y tamaños de envase
Especificaciones
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Specific rotation | +8.3° to +9.5° |
| pH | 4.5 - 5.5 |
| Loss on Drying | ≤ 0.5% |
| Sulfate (SO4) | ≤ 0.03% |
| Chloride (Cl) | ≤0.2% |
| Assay | 98.0 - 101.0% |
| Residue on Ignition | ≤ 0.1% |
| Iron (Fe) | ≤ 10ppm |
| Heavy metals (as Pb) | ≤ 10ppm |
| Arsenic (As2O3) | ≤ 1ppm |
| Ammonium (NH4) | ≤ 0.02% |
| State of Solution | ≥ 95.0% |
| Identification (RAMAN) | Conforms to Reference |
Almacenamiento y manejo
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identificación
| Property | Value |
|---|---|
| SKU | 15386031 |
| CAS Number | 52-90-4 |
| Molecular Formula | HSCH2CH(NH2)CO2H |
| Molecular Weight | 121.16 |
| SMILES | C([C@@H](C(=O)O)N)S |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29309092 |
| Tariff Code | 2930901300 |
Seguridad y GHS
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Health Hazard
GHS07
Declaraciones de peligro
- H302 Harmful if swallowed
Declaraciones de precaución
- 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
Solo para uso investigativo e industrial
Documentos
Fichas de Datos de Seguridad (FDS)
Disponible en PT, IT, FR, ES, DE, EN.
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PT - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · PT · 173 KB
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IT - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · IT · 171 KB
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FR - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · FR · 172 KB
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ES - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · ES · 173 KB
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DE - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · DE · 172 KB
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EN - (15386031) L-CYSTEINE [52-90-4].pdf
SDS · EN · 170 KB
Certificado de Análisis (CoA) por lote
Introduzca un número de lote o partida para recuperar el informe de análisis (CoA) correspondiente a esa partida específica. Podemos generar uno a partir de los datos de especificación si no hay ningún PDF disponible.
Sinónimos
No se han registrado nombres alternativos para este producto.
Preguntas frecuentes
What is L-Cysteine used for?
L-Cysteine is used in pharmaceuticals, cosmetics, and food additives as a reducing agent and antioxidant, and in the synthesis of other chemicals.
What is the chemical formula and molecular weight of L-Cysteine?
The formula is HSCH2CH(NH2)CO2H and the molecular weight is 121.16 g/mol.
How should L-Cysteine be stored?
Store at 2 to 8 °C in a cool, dry place, protected from light and moisture.
What grade of L-Cysteine does Molekula supply?
Molekula supplies L-Cysteine in pharmaceutical and research-grade purity.
Can Molekula supply L-Cysteine in bulk?
Yes, Molekula can supply L-Cysteine in bulk quantities—please contact sales for details.
What documentation comes with an order of L-Cysteine?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
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Indíquenos el producto, grado y cantidad — Molekula suele responder dentro de un día laboral con precio y plazo de entrega.