Molekula
L-Cisteína
L-Cystine
L-Cystine is a disulfide-bonded dimer of the amino acid L-cysteine, used in biochemical research, cell culture media, and pharmaceutical formulations for its role in protein structure and antioxidant activity. It has a CAS number of 56-89-3, molecular formula [-SCH2CH(NH2)CO2H]2, and a molecular weight of 240.30 g/mol. Stable at ambient storage conditions. Molekula supplies L-Cystine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Resumen
L-Cystine is a disulfide-bonded dimer of the amino acid L-cysteine, used in biochemical research, cell culture media, and pharmaceutical formulations for its role in protein structure and antioxidant activity. It has a CAS number of 56-89-3, molecular formula [-SCH2CH(NH2)CO2H]2, and a molecular weight of 240.30 g/mol. Stable at ambient storage conditions. Molekula supplies L-Cystine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Precios y tamaños de envase
Especificaciones
| Property | Value |
|---|---|
| Appearance | White crystals or crystalline powder |
| Specific rotation | -215° to -225° |
| Conclusion | Conforms to Specification |
| Heavy metals | ≤ 0.0015% |
| Loss on Drying | ≤ 0.20% |
| Chloride (Cl) | ≤ 0.10% |
| Assay | 98.5% to 101.5% |
| Particle Size | Approx 80 mesh/ 165 micron. |
| Residual on Ignition | ≤ 0.10% |
| Iron (Fe) | ≤ 0.003% |
| Sulphate (SO4) | ≤ 0.040% |
| Arsenic (As) | ≤ 1.5ppm |
Almacenamiento y manejo
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identificación
| Property | Value |
|---|---|
| SKU | 11394887 |
| CAS Number | 56-89-3 |
| Molecular Formula | [-SCH2CH(NH2)CO2H]2 |
| Molecular Weight | 240.30 |
| SMILES | O=C(O)C(N)CSSCC(N)C(=O)O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29309092 |
| Tariff Code | 2930901300 |
Seguridad y GHS
Solo para uso investigativo e industrial
Documentos
Fichas de Datos de Seguridad (FDS)
Disponible en RU, IT, FR, ES, DE, EN.
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RU - (11394887) L-CYSTINE [56-89-3].pdf
SDS · RU · 256 KB
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IT - (11394887) L-CYSTINE [56-89-3].pdf
SDS · IT · 250 KB
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FR - (11394887) L-CYSTINE [56-89-3].pdf
SDS · FR · 252 KB
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ES - (11394887) L-CYSTINE [56-89-3].pdf
SDS · ES · 251 KB
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DE - (11394887) L-CYSTINE [56-89-3].pdf
SDS · DE · 252 KB
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EN - (11394887) L-CYSTINE [56-89-3].pdf
SDS · EN · 249 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-Cystine used for?
L-Cystine is primarily used in pharmaceuticals, cosmetics, and dietary supplements for its role in protein synthesis and antioxidant properties.
What is the chemical formula and molecular weight of L-Cystine?
The formula is [-SCH2CH(NH2)CO2H]2 and the molecular weight is 240.30 g/mol.
How should L-Cystine be stored?
Store at ambient temperature, protected from moisture and light.
What grade of L-Cystine does Molekula supply?
Molekula supplies L-Cystine in pharmaceutical grade.
Can Molekula supply L-Cystine in bulk?
Yes, Molekula can supply L-Cystine in bulk quantities upon request.
What documentation comes with an order of L-Cystine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
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