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. 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.
It is mainly used as a precursor to toluene diisocyanate, a precursor to polyurethane.
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.
CAS No.
95-80-7
Formula
C7H10N2
Molecular Mass
122.17
Exact Mass
122.08400
PSA
52.04000
Logp
2.32180
IUPAC
4-methylbenzene-1,3-diamine
Attribute classification
Matter Classification
organic
Category
Chemical and Physical Properties
Melting Point
97-99 °C(lit.)
Density
1.26 g/cm3 (20℃)
Boiling Point
283-285 °C(lit.)
Flash Point
149 °C
Appearance
Brown to dark gray. Powder, Crystals and/or Chunks
Manufacturing
