Names | |
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Preferred IUPAC name
4-Methylbenzene-1,3-diamine | |
Other names
2,4-Toluenediamine
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Identifiers | |
3D model (
JSmol)
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ChemSpider | |
ECHA InfoCard | 100.002.231 |
PubChem
CID
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UNII | |
CompTox Dashboard (
EPA)
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Properties | |
C7H10N2 | |
Molar mass | 122.171 g·mol−1 |
Appearance | White solid |
Density | 1.521 g/cm3 |
Melting point | 97 to 99 °C (207 to 210 °F; 370 to 372 K) |
Boiling point | 283 to 285 °C (541 to 545 °F; 556 to 558 K) |
Hazards | |
NIOSH (US health exposure limits): | |
PEL (Permissible)
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none [1] |
REL (Recommended)
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Ca [1] |
IDLH (Immediate danger)
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Ca [N.D.] [1] |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
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2,4-Diaminotoluene is an organic compound with the formula C6H3(NH2)2CH3. It is one isomer of six with this formula. It is a white solid, although commercial samples are often yellow-tan. [2]
It is prepared by hydrogenation of 2,4-dinitrotoluene using a nickel catalyst. Commercial samples often contain up to 20% of the 2,6- isomer. [2]
A laboratory method involves reduction of 2,4-dinitrotoluene with iron powder. [3]
It is mainly used as a precursor to toluene diisocyanate, a precursor to polyurethane. It is also a degradation product of polyurethane materials produced using toluene diisocyanate.
Its reaction with benzenediazonium chloride gives the cationic azo dye Basic Orange 1. Condensation of 2,4-diaminotoluene with acetaldehyde gives the acridine dye called Basic Yellow 9. [4]