Molekula
L-سيستين
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.
نظرة عامة
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.
الأسعار ومقاسات التعبئة
المواصفات
| 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 |
التخزين والتعامل
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
التعرف
| 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 |
السلامة ونظام التصنيف والتحذير العالمي
مخصص للأغراض البحثية والصناعية فقط
الوثائق
أوراق بيانات السلامة (SDS)
متوفر بـ 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
شهادة التحليل (CoA) حسب الدفعة
أدخل رقم الدفعة أو الحزمة للحصول على شهادة المطابقة الخاصة بهذه الدفعة المحددة. يمكننا إنشاء واحدة من بيانات المواصفات إذا لم تكن هناك نسخة PDF محفوظة.
مرادفات
لا توجد أسماء بديلة مسجلة لهذا المنتج.
الأسئلة الشائعة
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).
جاهز للطلب أو تحتاج إلى حزمة مخصصة؟
أخبرنا بالمنتج، والجودة، والكمية — عادةً ما نرد خلال يوم عمل واحد بأسعار التوريد وموعد التسليم.