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Diphenylamine
Chemical compound / From Wikipedia, the free encyclopedia
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Diphenylamine is an organic compound with the formula (C6H5)2NH. The compound is a derivative of aniline, consisting of an amine bound to two phenyl groups. The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities.[5] Diphenylamine dissolves well in many common organic solvents, and is moderately soluble in water.[6] It is used mainly for its antioxidant properties. Diphenylamine is widely used as an industrial antioxidant, dye mordant and reagent and is also employed in agriculture as a fungicide and antihelmintic.[7]
Quick Facts Names, Identifiers ...
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Names | |
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Preferred IUPAC name
N-Phenylaniline[1] | |
Other names
(Diphenyl)amine Diphenylamine (deprecated[1]) Diphenylazane N-Phenylbenzenamine Anilinobenzene (Phenylamino)benzene N,N-Diphenylamine C.I. 10355 Phenylbenzenamine | |
Identifiers | |
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3D model (JSmol) |
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Abbreviations | DPA |
508755 | |
ChEBI | |
ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.004.128 ![]() |
EC Number |
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67833 | |
KEGG |
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PubChem CID |
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RTECS number |
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UNII | |
UN number | 2811 3077 |
CompTox Dashboard (EPA) |
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Properties | |
C12H11N | |
Molar mass | 169.23 g/mol |
Appearance | White, off-white[2] |
Odor | Floral[3] |
Density | 1.2 g/cm3 |
Melting point | 53 °C (127 °F; 326 K) |
Boiling point | 302 °C (576 °F; 575 K) |
0.03%[3] | |
Vapor pressure | 1 mmHg (108°C)[3] |
Acidity (pKa) | 0.79[4] |
-109.7·10−6 cm3/mol | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
Toxic. Possible mutagen. Possible teratogen. Harmful in contact with skin, and if swallowed or inhaled. Irritant. |
GHS labelling: | |
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Danger | |
H301, H311, H319, H331, H373, H410 | |
P260, P261, P264, P270, P271, P273, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P314, P321, P322, P330, P337+P313, P361, P363, P391, P403+P233, P405, P501 | |
NFPA 704 (fire diamond) | |
Flash point | 152 °C (306 °F; 425 K) |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
none[3] |
REL (Recommended) |
TWA 10 mg/m3[3] |
IDLH (Immediate danger) |
N.D.[3] |
Related compounds | |
Related Amine |
Aniline |
Supplementary data page | |
Diphenylamine (data page) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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