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CAS No.: 91-95-2
MF: C12H14N4
EINECS No.: 202-110-6
Synonym: 3,3′-Diaminobenzidine IN STOCK; 3,3′-Diaminobenzidine Factory; 3,3μ,4,4μ-Biphenyltetramine, 3,3μ,4,4μ-Tetraaminobiphenyl, DAB; DAB BUFFER
What is 3,3′-Diaminobenzidine with CAS 91-95-2?
3,3′-Diaminobenzidine (DAB) is a precursor to polybenzimidazole. DAB is frequently used in the immunohistochemical staining of nucleic acids and proteins. It can also be used to detect fingerprints in blood because that it can be oxidized by hydrogen peroxide in the presence of hemoglobin to give a dark-brown color. It can be prepared by treating 3, 3’-dichlorobenzidine with ammonia in the presence of copper catalyst at high temperature and pressure.
Specification
| Melting point | 175-177 °C(lit.) |
| Boiling point | 344.41°C (rough estimate) |
| density | 1.1726 (rough estimate) |
| refractive index | 1.5000 (estimate) |
| Fp | 12 °C |
| storage temp. | room temp |
| solubility | 0.55g/l |
| pka | 4.39±0.10(Predicted) |
| form | tablet |
| color | Crystals from MeOH |
| PH | 7 (1g/l, H2O, 20℃) |
| Water Solubility | 0.55 g/L (20 ºC) |
| Sensitive | Light Sensitive |
| BRN | 1212988 |
| Stability: | Stability Moisture and light sensitive. Incompatible with strong oxidizing agents. |
| InChIKey | HSTOKWSFWGCZMH-UHFFFAOYSA-N |
| CAS DataBase Reference | 91-95-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 3,3′-Diaminobenzidine(91-95-2) |
| EPA Substance Registry System | 3,3′-Diaminobenzidine (91-95-2) |
Application
3,3′-Diaminobenzidine is used for preparation of high-strength material such as nucleic acid stain and resistance high-temperature polymers such as bullet-proof vests.
Packing
25kgs/drum,9tons/20’container,25kgs/bag,20tons/20’container.
