Molekula
5,5'-ديثيوا-بيس(2-نيتروبنزويك أسيد)
5,5'-Dithio-bis(2-nitrobenzoic acid)
5,5'-Dithio-bis(2-nitrobenzoic acid), also known as DTNB or Ellman's reagent, is a chemical used to quantify free thiol groups in biological samples. It reacts specifically with sulfhydryl groups to produce a yellow-colored anion detectable at 412 nm. CAS: 69-78-3, Molecular Formula: C14H8N2O8S2, Molecular Weight: 396.35 g/mol, Storage: 2 to 8 °C, Signal Word: Warning. Molekula supplies 5,5'-Dithio-bis(2-nitrobenzoic acid) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
نظرة عامة
5,5'-Dithio-bis(2-nitrobenzoic acid), also known as DTNB or Ellman's reagent, is a chemical used to quantify free thiol groups in biological samples. It reacts specifically with sulfhydryl groups to produce a yellow-colored anion detectable at 412 nm. CAS: 69-78-3, Molecular Formula: C14H8N2O8S2, Molecular Weight: 396.35 g/mol, Storage: 2 to 8 °C, Signal Word: Warning. Molekula supplies 5,5'-Dithio-bis(2-nitrobenzoic acid) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
الأسعار ومقاسات التعبئة
المواصفات
| Property | Value |
|---|---|
| Appearance | Straw yellow powder |
| Water | ≤0.5% |
| Purity (HPLC) | ⩾ 99.0% |
| Identification | Conforms to reference |
| Solubility | soluble (1% in Methanol) - light yellow solution |
| Nitrogen Content | 16.7 - 17.6% |
| Assay (Titration) | 98.0 - 101.0% |
| For research use only, not for human use | For research use only, not for human use |
التخزين والتعامل
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Shelf Life | 24 months |
| Acidity | Acid |
التعرف
| Property | Value |
|---|---|
| SKU | 27025260 |
| CAS Number | 69-78-3 |
| Molecular Formula | (-SC6H3(NO2)COOH)2 |
| Molecular Weight | 396.35 |
| SMILES | C1=CC(=C(C=C1SSC2=CC(=C(C=C2)[N+](=O)[O-])C(=O)O)C(=O)O)[N+](=O)[O-] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29309029 |
| Tariff Code | 2930909599 |
السلامة ونظام التصنيف والتحذير العالمي
-
Health Hazard
GHS07
بيانات الخطر
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
إقرارات احترازية
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
مخصص للأغراض البحثية والصناعية فقط
الوثائق
أوراق بيانات السلامة (SDS)
متوفر بـ IT, FR, ES, DE, EN.
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IT - (27025260) 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) [69-78-3].pdf
SDS · IT · 285 KB
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FR - (27025260) 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) [69-78-3].pdf
SDS · FR · 289 KB
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ES - (27025260) 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) [69-78-3].pdf
SDS · ES · 286 KB
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DE - (27025260) 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) [69-78-3].pdf
SDS · DE · 286 KB
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EN - (27025260) 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) [69-78-3].pdf
SDS · EN · 283 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 5,5'-Dithio-bis(2-nitrobenzoic acid) used for?
It is primarily used in biochemical assays to measure free thiol groups, particularly in the determination of glutathione levels.
What is the chemical formula and molecular weight?
The formula is C14H8N2O8S2 and the molecular weight is 396.35 g/mol.
How should this compound be stored?
Store at 2 to 8 °C in a cool, dark place to prevent degradation.
What grade is available?
Available in analytical grade for laboratory use.
Can Molekula supply this in bulk?
Yes, Molekula can supply larger quantities upon request; please contact our sales team for bulk pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
جاهز للطلب أو تحتاج إلى حزمة مخصصة؟
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