HuagongsheHuagongshe Chemistry Print Report · For research reference only
2,4-Diaminotoluene
1,3-Benzenediamine, 4-methyl-, coupled with diazotized 4-methyl-1,3-phenylenediamine, diazotized m-phenylenediamine, diazotized m-toluidine, m-phenylenediamine and m-toluidine, acetates

Identifiers & Physical Properties
| CAS No. | 26764-44-3 |
|---|---|
| Molecular formula | C7H10N2 |
| Average molar mass | 122.17 g/mol |
| Monoisotopic mass | 122.08439832 g/mol |
| SMILES | Cc1ccc(N)cc1N |
| InChIKey | VOZKAJLKRJDJLL-UHFFFAOYSA-N |
| PubChem CID | 7261 |
| ChEMBL | CHEMBL541230 |
| ChEBI | CHEBI:34237 |
| EC No. | 202-453-1 |
| DTXSID | DTXSID4020402 |
Chemical & Physical Properties
| XLogP | 0.1 |
|---|---|
| Topological polar surface area | 52 |
| Hydrogen bond donors | 2 |
| Hydrogen bond acceptors | 2 |
| Rotatable bonds | 0 |
| Heavy atoms | 9 |
| Formal charge | 0 |
| Complexity | 92.9 |
| Chemical classes | Hazardous Air Pollutants (HAPs)Nitrogen Compounds -> Amines, AromaticCarcinogens |
| SpringerMaterials Properties | Boiling point |
| Pesticides | Pesticide -> EPA IRIS |
| LogP (partition coefficient) | log Kow = 0.140.35 |
| Density | 1.045 at 212 °F (NTP, 1992) - Denser than waterwill sink1.26 kg/lRelative density of the vapour/air-mixture at 20 °C (air = 1): 1.001.05 (liquid at 212 °F) |
| Color/Form | Needles from watercrystals from alcoholPrisms from alcoholColorless crystals |
| Solubility | 1 to 5 mg/mL at 70 °F (NTP, 1992)Very soluble in water, ethanol, ethyl ethersoluble in acetone, carbon disulfideSoluble in water, alcohol, and etherSolubility in water, g/100ml at 20 °C: 3.5 |
| Flash point | 300 °F (NTP, 1992)[ICSC] 149 °C |
| Boiling point | 558 °F at 760 mmHg (NTP, 1992)292 °C292 °C @760 [mm Hg] |
| Decomposition | When heated to decomposition it emits toxic fumes of nitrogen oxides. |
| Melting point | 210 °F (NTP, 1992)99 °C |
| Vapor density | Relative vapor density (air = 1): 4.2 |
Safety & Regulations
| GHS classification | DangerH301: Toxic if swallowed [Danger Acute toxicity, oral]P203, P260, P261, P264, P270, P272, P273, P280, P301+P316, P302+P352, P317, P318, P319, P321, P330, P333+P317, P362+P364, P391, P405, and P501 (click each P-code to see the statement)H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]P203, P260, P261, P264, P264+P265, P270, P272, P273, P280, P301+P316, P302+P352, P305+P351+P338, P317, P318, P319, P321, P330, P333+P317, P337+P317, P362+P364, P391, P405, and P501 (click each P-code to see the statement) |
|---|---|
| Regulatory information | Chemical: 1,3-Benzenediamine, 4-methyl-Hazard Traits - CarcinogenicityHematotoxicityHepatotoxicity and Digestive System ToxicityNeurotoxicityRespiratory Toxicity1,3-Benzenediamine, 4-methyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Benzenediamine, 4-methyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)TP - indicates a substance that is the subject of a proposed TSCA section 4 test rule.Status: Active Update: 21-07-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13465Substance: 4-methyl-m-phenylenediamine (toluene-2,4-diamine) |
| Other safety information | IMAP assessments - 1,3-Benzenediamine, 4-methyl-: Human health tier II assessment |
| DOT label | Poison |
| Fire hazards | Special Hazards of Combustion Products: Toxic fumes are generated when heated.· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air. |
| Health hazards | Excerpt from NIOSH Pocket Guide for Toluenediamine:· Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. |
| Hazards summary |