5,5′-Dithiobis(2-nitrobenzoic acid) NEW
| Price | $100 | $1 |
| Package | 1KG | 1000KG |
| Min. Order: | 1KG |
| Supply Ability: | g-kg-tons, free sample is available |
| Update Time: | 2023-12-24 |
Product Details
| Product Name: 5,5′-Dithiobis(2-nitrobenzoic acid) | CAS No.: 69-78-3 |
| Min. Order: 1KG | Purity: 99% |
| Supply Ability: g-kg-tons, free sample is available | Release date: 2023/12/24 |
| Lead time: In stock | Packaging: bottle/ drum/ bucket/ IBC, as request. |
| Delivery: By sea, by air, by express | Origin: Manufacturer |
1. Product information
| Product Name: | 5,5′-Dithiobis(2-nitrobenzoic acid) |
| Synonyms: | DTNB;ellmann's reagent;ELLMAN'S REAGENT;ELLMANS' REAGENT;BIS(3-CARBOXY-4-NITROPHENYL) DISULFIDE;3-CARBOXY-4-NITROPHENYL DISULFIDE;Ellmsn'sreagent;Bis(3-carboxy-4-nitrophenyl) disulphide~3-Carboxy-4-nitrophenyl disulphide~Ellmans |
| CAS: | 69-78-3 |
| MF: | C14H8N2O8S2 |
| MW: | 396.35 |
| EINECS: | 200-714-4 |
| Product Categories: | marker;Phenyls & Phenyl-Het;Phenyls & Phenyl-Het |
| Mol File: | 69-78-3.mol |
 | |
| 5,5′-Dithiobis(2-nitrobenzoic acid) Chemical Properties |
| Melting point | 240-245 °C (dec.)(lit.) |
| Boiling point | 671.9±55.0 °C(Predicted) |
| density | 1.67 |
| refractive index | 1.6900 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Do you have solubility information on this product that you would like to share |
| form | Yellow solid |
| pka | 1.57±0.25(Predicted) |
| color | Pale Yellow to Light Yellow |
| Water Solubility | Soluble in water and ethanol. |
| 5,5′-Dithiobis(2-nitrobenzoic acid) Usage And Synthesis |
| Chemical Properties | Crystalline |
| Uses | 5,5′-Dithiobis(2-nitrobenzoic acid) is an membrane-impermeant thiol/disulfide exchange blocker. It is also used to quantify the number or concentration of thiol groups in a sample. |
| Uses | Reagent for determination of sufhydryl groups.5,5'-dithiobis-(2-nitrobenzoic acid) is widely utilized as a non-fluorescent probe to quantify the number or the concentration of thiol groups in a sample. It acts as a cleavable cross-linking agent. It finds an important application as a sensitive reagent for determining free sulfhydryl content in proteins, peptides, and tissues. It is also employed in high-performance liquid chromatography (HPLC) to determine the alkylthiol content. |
| 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. |
2. Packaging
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
3. Shipping
4. Contact information
For more details, pls contact us freely.
Email address : elin@fdachem.com
Mob: 86 13613820652
WhatsApp/Skype/Wechat/LINE: 86 13613820652
Company Profile Introduction
Henan Fengda Chemical Co., Ltd. is located in the High-tech Development Zone of Henan Province. Specializing in the production and sales of various fine chemical products required for industrial production, including chemical raw materials, organic raw materials, petrochemicals, chemical reagents, solvents, catalysts, and additives, etc.
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- Since: 2023-02-10
- Address: Room 01, 2288 E05, Building 14, East Henan University, Science and Technology Park, 279 Xisanhuan Ro
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