2,5-Diaminotoluene

2,5-Diaminotoluene
Names
	Preferred IUPAC name 2-Methylbenzene-1,4-diamine
	Other names 2-Methyl-1,4-benzenediamine; Toluene-2,5-diamine; 2,5-Diaminotoluene
Identifiers
CAS Number	95-70-5 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	774521
ChEBI	CHEBI:53619 ;
ChemSpider	6982 ;
ECHA InfoCard	100.002.221
EC Number	202-442-1;
KEGG	C19386 ;
PubChem CID	7252;
UNII	24JO8Z0RJU ;
CompTox Dashboard (EPA)	DTXSID6029123 ;
	InChI InChI=1S/C7H10N2/c1-5-4-6(8)2-3-7(5)9/h2-4H,8-9H2,1H3 Key: OBCSAIDCZQSFQH-UHFFFAOYSA-N ;
	SMILES CC1=C(C=CC(=C1)N)N;
Properties
Chemical formula	C7H10N2
Molar mass	122.17
Appearance	off white crystals
Density	1.107 g/cm3
Melting point	64 °C (147 °F; 337 K)
Boiling point	273 °C (523 °F; 546 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H312, H317, H319, H332, H411
Precautionary statements	P261, P264, P270, P271, P272, P273, P280, P301+P310, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P333+P313, P337+P313, P363, P391, P405, P501
Flash point	no
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [N.D.]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,5-Diaminotoluene is an organic compound with the formula C₆H₃(NH₂)₂CH₃. It is one isomer of six with this formula. 2,5-Diaminotoluene is a colorless crystalline solid, although commercial samples are often colored owing to air oxidation. It is commonly used in hair coloring.^[2]

^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0620". National Institute for Occupational Safety and Health (NIOSH).
^ T. Clausen (2006). "Hair Preparations". Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a12_571.pub2. ISBN 9783527303854.

[PGCH-1] NIOSH Pocket Guide to Chemical Hazards. "#0620". National Institute for Occupational Safety and Health (NIOSH).

[Ullmann-2] T. Clausen (2006). "Hair Preparations". Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a12_571.pub2. ISBN 9783527303854.

[1]

[2]

Names

Preferred IUPAC name 2-Methylbenzene-1,4-diamine
Other names 2-Methyl-1,4-benzenediamine Toluene-2,5-diamine 2,5-Diaminotoluene
Identifiers
CAS Number	95-70-5^Y
3D model (JSmol)	Interactive image
Beilstein Reference	774521
ChEBI	CHEBI:53619^Y
ChemSpider	6982^Y
ECHA InfoCard	100.002.221
EC Number	202-442-1
KEGG	C19386^N
PubChem CID	7252
UNII	24JO8Z0RJU^Y
CompTox Dashboard (EPA)	DTXSID6029123
InChI InChI=1S/C7H10N2/c1-5-4-6(8)2-3-7(5)9/h2-4H,8-9H2,1H3^Y Key: OBCSAIDCZQSFQH-UHFFFAOYSA-N^Y
SMILES CC1=C(C=CC(=C1)N)N
Properties
Chemical formula	C₇H₁₀N₂
Molar mass	122.17
Appearance	off white crystals
Density	1.107 g/cm³
Melting point	64 °C (147 °F; 337 K)
Boiling point	273 °C (523 °F; 546 K)
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H312, H317, H319, H332, H411
Precautionary statements	P261, P264, P270, P271, P272, P273, P280, P301+P310, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P333+P313, P337+P313, P363, P391, P405, P501
Flash point	no
NIOSH (US health exposure limits):
PEL (Permissible)	none^[1]
REL (Recommended)	Ca^[1]
IDLH (Immediate danger)	Ca [N.D.]^[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

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2,5-Diaminotoluene

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