O-Dianisidine
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| Names | |
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IUPAC name
4-(4-amino-3-methoxyphenyl)-2-methoxyaniline
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| Other names
2,2'-dimethoxy-4,4’-benzidine
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| Identifiers | |
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3D model (JSmol)
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.003.960 |
| EC Number | 204-355-4 |
| KEGG | |
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PubChem CID
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| RTECS number | DD0875000 |
| UNII | |
| UN number | 2811, 2431, 3077 |
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| Properties | |
| C14H16N2O2 | |
| Molar mass | 244.29 g·mol−1 |
| Appearance | White solid |
| Density | 1.178 g/cm3 |
| Melting point | 113 °C (235 °F; 386 K) |
| Boiling point | 356 °C (673 °F; 629 K) |
| 60 mg/l | |
| Hazards | |
| GHS pictograms |
 
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| GHS signal word | Danger |
| H302, H350 | |
| P201, P202, P264, P270, P281, P301+312, P308+313, P330, P405, P501 | |
| Flash point | 206°C |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
o-Dianisidine is an organic compound with the formula [(CH3O)(H2N)C6H3]2. A colorless or white solid, it is a bifunctional compound derived via the benzidine rearrangement from o-anisidine.
o-Dianisidine is a precursor to some azo dyes by formation of the bis(diazonium) derivative, which is coupled to diverse aromatic compounds. Some commercial dyes derived from o-dianisidine include C. I. Direct Blue 1, 15, 22, 84, and 98.
The manufacture and degradation of o-dianisidine, like other benzidene derivatives, has attracted regulatory attention. It is also used as a reagent in biochemistry in testing for peroxides.
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