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High purity 5,5′-Dithiobis(2-nitrobenzoic acid) DTNB CAS 69-78-3 used as biochemical reagent CAS NO.69-78-3
- FOB Price: USD: 10.00-10.00 /Gram Get Latest Price
- Min.Order: 100 Gram
- Payment Terms: L/C,T/T
- Available Specifications:
99%(100-1000)Gram
- Product Details
Keywords
- 69-78-3
- 5,5′-Dithiobis(2-nitrobenzoic acid)
- DTNB Supplier
Quick Details
- ProName: High purity 5,5′-Dithiobis(2-nitrobenz...
- CasNo: 69-78-3
- Molecular Formula: C14H8N2O8S2
- Appearance: Light yellow to yellow powder
- Application: Biochemicals
- DeliveryTime: Prompt
- PackAge: 100g/foil bag; 1kg/foil bag
- Port: Any port of China
- ProductionCapacity: 300 Kilogram/Month
- Purity: 99%min
- Storage: room temp
- Transportation: By sea /Air / Courier
- LimitNum: 100 Gram
- Grade: Pharma Grade
- Experience: 10 years
Superiority
Wuhan Fortuna Chemical Co.,Ltd is a professional integrative chemical enterprise with 18 years exporting experience,which is being engaged in Pharmaceutical and its intermediates, Food and Feed additives, Fine chemicals.
Details
5,5′-Dithiobis(2-nitrobenzoic acid) (DTNB), also called Ellman’s reagent, is a biochemical compound used to quantify free thiol (-SH) groups in proteins, peptides, or other molecules.
Mechanism: Reacts with thiols to release 2-nitro-5-thiobenzoate (TNB), a yellow-colored product detectable at 412 nm (absorbance).
Applications: Measures cysteine residues, enzyme activity (e.g., acetylcholinesterase), and antioxidant levels (e.g., glutathione).
Features: Water-soluble, forms a 1:1 molar ratio with thiols, and has a high extinction coefficient (~14,150 M?¹cm?¹).
Usage: Common in spectrophotometric assays for thiol quantification.
Safety: Irritant—handle with protective gear. Critical for studying redox states and protein structure.