ChemicalBook > Product Catalog >Organic Chemistry >Hydrocarbons and derivatives >Hydrocarbon nitrification >5,5′-Dithiobis(2-nitrobenzoic acid)
5,5′-Dithiobis(2-nitrobenzoic acid)
- CAS No.
- 69-78-3
- Chemical Name:
- 5,5′-Dithiobis(2-nitrobenzoic acid)
- Synonyms
- DTNB;Ba-2767;5,5'Ellmanns;5,5&priMe;Ellmsn'sreagent;ELLMANS' REAGENT;ELLMAN'S REAGENT;ellmann's reagent;SAPONIN BIOCHEMICAL
- CBNumber:
- CB2215444
- Molecular Formula:
- C14H8N2O8S2
- Molecular Weight:
- 396.35
- MOL File:
- 69-78-3.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/2/14 13:52:13
| Melting point | 240-245 °C (dec.)(lit.) |
|---|---|
| Boiling point | 671.9±55.0 °C(Predicted) |
| bulk density | 290kg/m3 |
| Density | 1.67 |
| refractive index | 1.6900 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | ethanol: 8mg/mL |
| pka | 1.57±0.25(Predicted) |
| form | Yellow solid |
| color | Pale Yellow to Light Yellow |
| Water Solubility | Soluble in water and ethanol. |
| Merck | 14,3551 |
| BRN | 1896821 |
| Stability | Stable. Incompatible with strong bases, strong oxidizing agents. |
| InChIKey | KIUMMUBSPKGMOY-UHFFFAOYSA-N |
| CAS DataBase Reference | 69-78-3(CAS DataBase Reference) |
| EPA Substance Registry System | Benzoic acid, 3,3'-dithiobis[6-nitro- (69-78-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | DG9650000 | |||||||||
| F | 10 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29309070 | |||||||||
| NFPA 704 |
|
5,5′-Dithiobis(2-nitrobenzoic acid) price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | D8130 | 5,5′-Dithiobis(2-nitrobenzoic acid) ≥98%, BioReagent, suitable for determination of sulfhydryl groups | 69-78-3 | 500MG | ₹2200 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D8130 | 5,5′-Dithiobis(2-nitrobenzoic acid) ≥98%, BioReagent, suitable for determination of sulfhydryl groups | 69-78-3 | 1G | ₹3970 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D8130 | 5,5′-Dithiobis(2-nitrobenzoic acid) ≥98%, BioReagent, suitable for determination of sulfhydryl groups | 69-78-3 | 5G | ₹9660 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D8130 | 5,5′-Dithiobis(2-nitrobenzoic acid) ≥98%, BioReagent, suitable for determination of sulfhydryl groups | 69-78-3 | 10G | ₹17820 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D8130 | 5,5′-Dithiobis(2-nitrobenzoic acid) ≥98%, BioReagent, suitable for determination of sulfhydryl groups | 69-78-3 | 25G | ₹24258.83 | 2022-06-14 | Buy |
5,5′-Dithiobis(2-nitrobenzoic acid) Chemical Properties,Uses,Production
Chemical Properties
Crystalline
Uses
5,5′-Dithiobis(2-nitrobenzoic acid) is a water soluble reagent mainly used for the derivatization of sulfhydryl groups.
Definition
ChEBI: An organic disulfide that results from the formal oxidative dimerisation of 2-nitro-5-thiobenzoic acid. An indicator used to quantify the number or concentration of thiol groups.
General Description
5,5′-Dithiobis(2-nitrobenzoic acid) is also called DTNB or Ellman′s reagent. It is a water soluble reagent, which interacts with thiol groups, and can be used conveniently at neutral pH. Thiolate anion (RS-) reacts with Ellman′s reagent (DTNB2-), to produce 2-nitro-5-thiobenzoate anion (TNB2-) and one mixed disulfide (R-S-TNB-). TNB2- has a high molar absorption coefficient, and absorbs at 412nm. This absorption is independent of pH, at pH> 7.3.
5,5′-Dithiobis(2-nitrobenzoic acid) Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 402)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6700 | 30 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6768 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6100 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6257 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5870 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6905 | 58 | Inquiry |
| Triveni chemicals | 08048762458 | New Delhi, India | 6088 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6157 | 58 | Inquiry |
| Innovative | 07942565925 | Mumbai, India | 617 | 58 | Inquiry |
| Global Chemie | 08046043260 | Mumbai, India | 162 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| CHEMSWORTH | 30 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| A.J Chemicals | 58 |
| CLEARSYNTH LABS LTD. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Triveni chemicals | 58 |
| Central Drug House(P) Ltd. | 58 |
| Innovative | 58 |
| Global Chemie | 58 |
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- Nov 1，2019
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