2,4-Xylidine is an organic compound with the formula C6H3(CH3)2NH2. It is one of several isomeric xylidines. It is a colorless viscous liquid. Commercially significant derivatives include the veterinary drug cymiazole and the colorant Pigment Yellow 81.[1]
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Preferred IUPAC name
2,4-Dimethylaniline | |
Other names
2,4-Dimethylphenylamine
2,4-Dimethylbenzenamine | |
Identifiers | |
3D model (JSmol)
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636243 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.002.219 |
EC Number |
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KEGG | |
PubChem CID
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RTECS number |
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UNII | |
UN number | 1711 |
CompTox Dashboard (EPA)
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Properties | |
C8H11N | |
Appearance | colourless liquid |
Density | 0.9763 |
Melting point | −15.9 °C (3.4 °F; 257.2 K) |
Boiling point | 218.0 °C (424.4 °F; 491.1 K) |
low | |
Hazards | |
GHS labelling: | |
Warning | |
H301, H311, H319, H330, H331, H373, H411 | |
P260, P261, P264, P270, P271, P273, P280, P284, P301+P310, P302+P352, P304+P340, P305+P351+P338, P310, P311, P312, P314, P320, P321, P322, P330, P337+P313, P361, P363, P391, P403+P233, P405, P501 | |
Flash point | 100 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Genotoxic and teratogenic, 2,4‑xylidine is an industrial pollutant.[2] In addition, it is a degradant of the pesticide amitraz at very acidic pH values (<3).[relevant?][3]
It is prepared by nitration of m-xylene followed by hydrogenation.
References
edit- ^ Meyer, M. (2012). "Xylidines". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a28_455. ISBN 978-3527306732.
- ^ Brimecombe, R. D.; Fogel, R.; Limson, J. L. (2006). "Electrochemical monitoring of the biodegradation of 2,4-dimethylaniline". Journal of Agricultural and Food Chemistry. 54 (23): 8799–8803. doi:10.1021/jf061951k. PMID 17090125.
- ^ Corta, E. W.; Bakkali, A.; Berrueta, L. A.; Gallo, B.; Vicente, F. (1999). "Kinetics and mechanism of amitraz hydrolysis in aqueous media by HPLC and GC-MS". Talanta. 48 (1): 189–199. doi:10.1016/s0039-9140(98)00237-9. PMID 18967458.