CAS Number69-78-3
Synonyms3-Carboxy-4-nitrophenyl disulfide; EINECS 200-714-4; 3,3'-Disulfanediylbis(6-nitrobenzoic acid); Ellman Reagent; MFCD00007140; 5,5'-dithiobis-(2-nitrobenzoic acid); 5,5'-DITHIOBIS(2-NITROBENZOIC ACID); 5,5'-Dithobis(2-Nitrobenzoic Acid); 5,5-Dithiobis(2-nitrobenzoic acid); 5,5′-Dithiobis(2-nitrobenzoic acid); UNII:9BZQ3U62JX; DTNB
Molecular Formula[-SC6H3(NO2)CO2H]2
Molecular Weight396.35
Purity≥98%
Density1.8±0.1 g/cm3
Boiling Point671.9±55.0 °C at 760 mmHg
Melting Point240-245 °C (dec.) (lit.)
Appearancepowder
EINECS200-714-4
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 69-78-3 |
| Catalog No. | 2A-9016989 |
| Chinese Name | 5,5＇二硫代双(2-硝基苯甲酸)(DTNB) |
| Synonyms | 3-Carboxy-4-nitrophenyl disulfide; EINECS 200-714-4; 3,3'-Disulfanediylbis(6-nitrobenzoic acid); Ellman Reagent; MFCD00007140; 5,5'-dithiobis-(2-nitrobenzoic acid); 5,5'-DITHIOBIS(2-NITROBENZOIC ACID); 5,5'-Dithobis(2-Nitrobenzoic Acid); 5,5-Dithiobis(2-nitrobenzoic acid); 5,5′-Dithiobis(2-nitrobenzoic acid); UNII:9BZQ3U62JX; DTNB |
| Molecular Formula | [-SC6H3(NO2)CO2H]2 |
| Molecular Weight | 396.35 |
| Purity | ≥98 |
| Density | 1.8±0.1 g/cm3 |
| Boiling Point | 671.9±55.0 °C at 760 mmHg |
| Melting Point | 240-245 °C (dec.) (lit.) |
| Appearance | powder |
| Storage Condition | This product should be sealed and stored in a cool |
| Application | DTNB can quantitatively determine thiol groups and can be used to determine low molecular weight thiols (such as glutathione) in pure solutions and biological samples. |
| EINECS | 200-714-4 |
| HTC | 29309070 |
| PubChem ID | 24894189 |
| MDL Number | MFCD00007140 |
| SMILES | OC(=O)c1cc(SSc2ccc(c(c2)C(O)=O)[N+]([O-])=O)ccc1[N+]([O-])=O |
| InChI | 1S/C14H8N2O8S2/c17-13(18)9-5-7(1-3-11(9)15(21)22)25-26-8-2-4-12(16(23)24)10(6-8)14(19)20/h1-6H,(H,17,18)(H,19,20) |
| InChI Key | KIUMMUBSPKGMOY-UHFFFAOYSA-N |
| Beilstein/REAXYS | 1896821 |
| NACRES Code | NA.26 |
| UNSPSC | 12352106 |
| MSDS | msds/16989_1_69_78_3.pdf |
| Bioactivity | DTNB(Ellman's Reag) is a chemical used to quantify the number or concentration of thiol groups in a sample; can be used for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood. Related Catalog Signaling Pathways >> Others >> Others Biochemical Assay Reagents Research Areas >> Others Chemical & Physical Properties Density 1.8±0.1 g/cm3 Boiling Point 671.9±55.0 °C at 760 mmHg Melting Point 240-245 °C (dec.)(lit.) Molecular Formula C14H8N2O8S2 Molecular Weight 396.352 Flash Point 360.1±31.5 °C Exact Mass 395.972198 PSA 216.84000 LogP 3.97 Vapour Pressure 0.0±2.2 mmHg at 25°C Index of Refraction 1.769 InChIKey KIUMMUBSPKGMOY-UHFFFAOYSA-N SMILES O=C(O)c1cc(SSc2ccc([N+](=O)[O-])c(C(=O)O)c2)ccc1[N+](=O)[O-] Storage condition Store at RT. Stability Stable. Incompatible with strong bases, strong oxidizing agents. |
| Use of | DTNB(Ellman's Reag) is a chemical used to quantify the number or concentration of thiol groups in a sample; can be used for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood. Properties Articles324 Name dithionitrobenzoic acid Synonym More Synonyms DTNB Biological Activity Description DTNB(Ellman's Reag) is a chemical used to quantify the number or concentration of thiol groups in a sample; can be used for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood. Related Catalog Signaling Pathways >> Others >> Others Biochemical Assay Reagents Research Areas >> Others Chemical & Physical Properties Molecular Formula C14H8N2O8S2 Exact Mass 395.972198 PSA 216.84000 Index of Refraction 1.769 InChIKey KIUMMUBSPKGMOY-UHFFFAOYSA-N Storage condition Store at RT. Stability Stable. Incompatible with strong bases, strong oxidizing agents. |
| Tax Rebate | 13.0% |
| Supervision | None. MFN tariff: 6.5%. Ordinary tariff: 30.0% |
| Transport Info | Product name: Purity: 98.0% |
| MSDS Transport Info | Module 14. Shipping information United Nations classification: inconsistent with United Nations classification standards UN number: not specified |
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