Disperse Orange 1, or 4-anilino-4'-nitroazobenzene, is an azo dye. Commercial samples contain approximately 25% dye by weight, with the remaining mass consisting of NaCl and other salts.
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Names | |
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Other names 4-Anilino-4'-nitroazobenzene C.I. 11080 (Colour index numbers) | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.018.141 |
EC Number |
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PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C18H14N4O2 | |
Molar mass | 318.33476 g/mol |
Melting point | 160.0 °C (320.0 °F; 433.1 K) |
Hazards | |
GHS labelling: | |
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Warning | |
H317 | |
P261, P272, P280, P302+P352, P321, P333+P313, P363, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
This dye is useful in conducting experiments with flash photolysis due to the isomerization effect between the trans-4A4N and cis-4A4N states that occurs during photo relaxation.[1][2]
References
edit- ^ Hair, S. R.; Taylor, G. A.; Schultz, L. W. J. (1990). "An Easily Implemented Flash Photolysis Experiment for the Physical Chemistry Laboratory: the Isomerization of 4-Anilino-4'-Nitroazobenzene". Journal of Chemical Education. 67 (8): 709. Bibcode:1990JChEd..67..709H. doi:10.1021/ed067p709.
- ^ Wildes, P. D.; Pacifici, J. G.; Irick, G.; Whitten, D. G. J. Am. Chem. Soc., 1971, 93, 2004.
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