3,4-Diaminotoluene CAS#496-72-0
Important Organic Synthesis Intermediate: 3,4-Diaminotoluene is widely used as a key intermediate in dye manufacturing and organic synthesis, supporting the preparation of various chemical products.
Well-Defined Physical Properties: It has a clear molecular structure (C₇H₁₀N₂), molecular weight of 122.17, melting point of 87–89°C, and boiling point of 265°C, enabling reliable processing and application.
Stable Solid-State Characteristics: Appears as a grayish-white to light brown flaky crystalline solid with good stability under normal conditions and can be sublimed when heated.
Versatile Chemical Application Potential: With its diamine functional groups, 3,4-Diaminotoluene offers useful reactivity and flexibility for applications in dyes and chemical synthesis fields.
3,4-Diaminotoluene CAS#496-72-0
3,4-Diaminotoluene, also known as 4-methyl-1,2-phenylenediamine, is an organic compound with the molecular formula C₇H₁₀N₂ and a molecular weight of 122.17. It has a melting point of 87–89°C (lit.) and a boiling point of 265°C.
This compound appears as a grayish-white to light brown flaky crystalline solid. It is slightly soluble in cold water and can be sublimed. Due to its reactive amino groups, 3,4-Diaminotoluene is widely used as an important intermediate in dye production and organic synthesis.
3,4-Diaminotoluene Chemical Properties
| 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) |
Product Application of 3,4-Diaminotoluene CAS#496-72-0
It is primarily used in the manufacture of high-grade organic pigment Disperse Fluorescent Yellow. It can also be applied as a rust inhibitor and corrosion inhibitor, as well as an intermediate for the production of dye intermediates, organic synthesis intermediates, and synthetic metal compounds, including those of silver, copper, lead, nickel, and zinc.
