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O-Toluidine
 | |
| Names | |
|---|---|
| Preferred IUPAC name
2-Methylaniline[1] | |
| Other names
o-Methylaniline
o-Toluidine 1-Amino-2-methylbenzene 2-Aminotoluene, 2-Toluamine | |
| Identifiers | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.002.209 |
| KEGG | |
PubChem CID
|
|
| UNII | |
CompTox Dashboard (EPA)
|
|
| Properties | |
| C7H9N | |
| Molar mass | 107.156 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Aromatic, aniline-like odor |
| Density | 1.004 g/cm3 |
| Melting point | −23.68 °C (−10.62 °F; 249.47 K) |
| Boiling point | 200 to 202 °C (392 to 396 °F; 473 to 475 K) |
| 0.19 g/100 ml at 20 °C | |
| Vapor pressure | 0.307531 mmHg (25 °C) |
Refractive index (nD)
|
1.56987 |
| Viscosity | 4.4335 (20 °C) |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
|
Flammable, moderately toxic |
| GHS labelling: | |
    
| |
| Danger | |
| H301, H302, H319, H331, H350, H400 | |
| P201, P202, P261, P264, P270, P271, P273, P280, P281, P301+P310, P304+P340, P305+P351+P338, P308+P313, P311, P321, P330, P337+P313, P391, P403+P233, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 85 °C (185 °F; 358 K) |
| 481.67 °C (899.01 °F; 754.82 K) | |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
|
900 mg/kg (rat, oral) 323 mg/kg (rabbit, oral) |
| Related compounds | |
Related compounds
|
Toluidine |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
o-Toluidine (ortho-toluidine) is an organic compound with the chemical formula CH3C6H4NH2. It is the most important of the three isomeric toluidines. It is a colorless liquid although commercial samples are often yellowish. It is a precursor to the herbicides metolachlor and acetochlor.[2]
- ^ Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 669. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
The names 'toluidine', 'anisidine', and 'phenetidine' for which o-, m-, and p- have been used to distinguish isomers, and 'xylidine' for which numerical locants, such as 2,3-, have been used, are no longer recommended, nor are the corresponding prefixes 'toluidine', 'anisidino', 'phenetidine', and 'xylidino'.
- ^ Bowers, Joseph S. "Toluidines". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a27_159. ISBN 978-3-527-30673-2.
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