4-methylbenzene-1,2-diamine
3,4-Diaminotoluene
CAS: 496-72-0
Molecular Formula: C7H10N2
4-methylbenzene-1,2-diamine - Names and Identifiers
| Name | 3,4-Diaminotoluene |
| Synonyms | 3,4-Diaminotoluene 3,4-Toluenediamine 3,4-DIAMINO TOLUENEL 4-METHYL-O-PHENYLDIAMINE 1,2-Diamino-4-ethylbenzene 2-AMINO-4-METHYLPHENYLAMINE 1,2-Diamino-4-methylbenzene 4-METHYL-1,2-BENZENEDIAMINE 4-methylbenzene-1,2-diamine 1,2-benzenediamine,-methyl- 4-METHYL-BENZENE-1,2-DIAMINE 4-Methyl-1,2-phenylenediamine benzene-1,2-diyldimethanamine 4-METHYL-1,2-PHENYLENEDIAMINE |
| CAS | 496-72-0 |
| EINECS | 207-826-2 |
| InChI | InChI=1/C8H12N2/c9-5-7-3-1-2-4-8(7)6-10/h1-4H,5-6,9-10H2 |
4-methylbenzene-1,2-diamine - Physico-chemical Properties
| Molecular Formula | C7H10N2 |
| Molar Mass | 122.17 |
| Density | 1.2207 (rough estimate) |
| Melting Point | 87-89 °C (lit.) |
| Boling Point | 155-156 °C/18 mmHg (lit.) |
| Flash Point | 155-156°C/18mm |
| Water Solubility | 16 g/L (20 ºC) |
| Solubility | Slightly soluble in cold water, sublimable. Solubility in water: 16g/l (20°C). |
| Vapor Presure | 0.0179mmHg at 25°C |
| Appearance | Crystallization |
| Color | Brown to grayish-brown |
| BRN | 507965 |
| pKa | 4.59±0.10(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Sensitive | Sensitive to air |
| Refractive Index | 1.5103 (estimate) |
| MDL | MFCD00007728 |
| Physical and Chemical Properties | Lamellar crystals. Melting point 89-90 °c, boiling point 265 °c. Slightly soluble in cold water, sublimation. |
| Use | Used as dyes, intermediates in organic synthesis |
4-methylbenzene-1,2-diamine - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R40 - Limited evidence of a carcinogenic effect R36 - Irritating to the eyes R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 2811 |
| WGK Germany | 2 |
| RTECS | XS9820000 |
| TSCA | Yes |
| HS Code | 29215119 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
4-methylbenzene-1,2-diamine - Introduction
Slightly soluble in cold water, sublimable. Solubility in water: 16g/l (20°C).
Last Update：2022-10-16 17:25:28
4-methylbenzene-1,2-diamine - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | dye intermediate. Used to produce dispersed fluorescent yellow. Used as an intermediate in dye and organic synthesis |
| Production method | It is obtained by reduction of 4-methyl-2-nitroaniline. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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