Product Description
3,4-Diaminotoluene, also known as 4-methylbenzene-1,2-diamine, is an organic compound with the molecular formula C₇H₁₀N₂ and a molecular weight of 122.17 g/mol. It has a reported melting point of 87–89°C and a boiling point of approximately 265°C.
The compound is described as a grayish-white to light brown crystalline solid. It is slightly soluble in cold water and may undergo sublimation under suitable conditions. With two amino functional groups, 3,4-Diaminotoluene offers useful reactivity in organic synthesis and is used as an intermediate in dye manufacturing and the preparation of other organic compounds.
Product Parameters
| Melting point | 87-89 °C (lit.) |
| Boiling point | 155-156 °C/18 mmHg (lit.) |
| density | 1.2207 (rough estimate) |
| refractive index | 1.5103 (estimate) |
| Fp | 155-156°C/18mm |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Chloroform (Sparingly), Methanol (Slightly) |
| pka | 4.59±0.10(Predicted) |
| form | Crystalline Chunks or Flakes |
| color | Brown to grayish-brown |
| Water Solubility | 16 g/L (20 ºC) |
| BRN | 507965 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 496-72-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,2-Benzenediamine, 4-methyl-(496-72-0) |
| EPA Substance Registry System | 3,4-Diaminotoluene (496-72-0) |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-36/37/38-52/53-40-36-22 |
| Safety Statements | 26-37/39-61-36/37/39 |
| RIDADR | UN 2811 |
| WGK Germany | 2 |
| RTECS | XS9820000 |
| TSCA | Yes |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| HS Code | 29215119 |
| Hazardous Substances Data | 496-72-0(Hazardous Substances Data) |
Application Scenarios
3,4-Diaminotoluene is used as an intermediate in the production of organic pigments, including certain disperse fluorescent yellow pigments. It also has potential applications in corrosion-inhibiting formulations and serves as an intermediate in the synthesis of dyes, other organic compounds, and metal-containing complexes involving metals such as silver, copper, lead, nickel, and zinc. Its suitability for specific applications depends on the formulation, synthesis process, and end-product requirements.
