Detail of > 1975-50-4
- CAS Number:
- 1975-50-4
- Name:
Benzoicacid, 2-methyl-3-nitro-
- Superlist Name:
- 2-Methyl-3-nitrobenzoic acid
- Formula:
- C8H7NO4
- Molecular Structure:
- Synonyms:
- o-Toluicacid, 3-nitro- (6CI,7CI,8CI);3-Nitro-2-methylbenzoic acid;3-Nitro-o-toluic acid;
- Molecular Weight:
- 181.15
- EINECS:
- 217-826-4
- Density:
- 1.392 g/cm3
- Melting Point:
- 182-184 °C(lit.)
- Boiling Point:
- 337.1 °C at 760 mmHg
- Flash Point:
- 151.9 °C
- Solubility:
- water: <0.1 g/100 mL at 22 °C
- Appearance:
- white crystal powder
- Hazard Symbols:
Xi,
Xn- Risk Codes:
- 36/37/38-20/21/22
- Safety:
- 26-36-36/37/39-22Details
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Reference
- Highly pure 1-nitroanthraquinone
- Highly pure 1-nitroanthraquinone. Padmanathan, Thurairajah (American Cyanamid Co., USA). U.S. US 4065477 27 Dec 1977, 4 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C07C049-68. NCL: 260369000. APPLICATION: US 76-736663 29 Oct 1976. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) 1-Nitroanthraquinone (I) [82-34-8] is prepd. using the following reaction sequence: 3-nitro-o-xylene [83-41-0] is oxidized by HNO3 to give 46.6% 2-methyl-3-nitrobenzoic acid [1975-50-4] which is converted to the chloride [39053-41-3] in 95% yield, the chloride condensed with benzene [71-43-2] in the presence of AlCl3 to give 95% 2-methyl-3-nitrobenzophenone [59394-73-9], oxidized with HNO3 to give 52% 2-benzoyl-6-nitrobenzoic acid [7335-77-5], and cyclized by H2SO4 to form 46.6% I.
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