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CAS No 131-79-3 , 2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]- Search by region : Germany

  • Name: 2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-
  • Synonyms: OilYellow OB;2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-; C.I.Solvent Yellow 6 (7CI,8CI); Cerisol Yellow TB; 2-Naphthylamine, 1-o-tolylazo- (6CI); 1-(o-Tolylazo)-2-naphthylamine; Oil Yellow OB Pure;2-Naphthalenamine,1-[(2-methylphenyl)azo]- (9CI);C.I. 11390; Japan Yellow 405; Yellow 405; FD and C Yellow No. 4; C.I. Food Yellow 11;o-(2-Amino-1-naphthylazo)toluene; Ext. Dand C Yellow No. 10; NSC 11234; Yellow OB; Dolkwal Yellow OB; o-Toluene-1-azo-2-naphthylamine; A.F. Yellow No.3;
  • CAS Registry Number:
  • Melting Point: 261.321
  • Flash Point: 243.3°C
  • Boiling Point: 478.7°Cat760mmHg
  • Density: 1.15g/cm3
  • Refractive index: 1.636
  • Safety Statements: A poison by ingestion. Moderately toxic by intraperitoneal and subcutaneous routes. Questionable carcinogen with experimental tumorigenic data. May be contaminated with the carcinogen β-naphthylamine. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also AROMATIC AMINES.
  • Flash Point: 243.3°C
  • EINECS: 205-039-9
  • Molecular Weight: 261.32
  • InchiKey: BWLVSYUUKOQICP-UHFFFAOYSA-N
  • InChI: InChI=1S/C17H15N3/c1-12-6-2-5-9-16(12)19-20-17-14-8-4-3-7-13(14)10-11-15(17)18/h2-11H,18H2,1H3
  • Molecular Formula: C17H15N3
  • Molecular Structure:CAS No:131-79-3 2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-

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131-79-3 Oil yellow ob

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References of 2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-
Title: Yellow OB
CAS Registry Number: 131-79-3
CAS Name: 1-[(2-Methylphenyl)azo]-2-naphthalenamine
Synonyms: C.I. Solvent Yellow 6; 1-o-tolylazo-2-naphthylamine; FD & C Yellow no. 4; Ext. D & C Yellow no. 10; C.I. 11390
Molecular Formula: C17H15N3
Molecular Weight: 261.32
Percent Composition: C 78.13%, H 5.79%, N 16.08%
Literature References: Prepd from diazotized o-toluidine and b-naphthylamine: Krüss, Z. Phys. Chem. 51, 270 (1905); Norman, J. Chem. Soc. 101, 1913 (1912); Fischer, J. Prakt. Chem. 104, 102 (1922); Hodgson, Foster, J. Chem. Soc. 1942, 30. Toxicity studies: Allmark et al., J. Pharm. Pharmacol. 7, 591 (1955); Hansen et al., Toxicol. Appl. Pharmacol. 5, 16 (1963). Formerly used in the U.S. for coloring oleomargarine.
Properties: Deep red crystals from alc. Also reported as bright yellow needles (Krüss). mp 125-126° (Fischer). Practically insol in water. Sol in alc, ether, benzene, carbon tetrachloride, vegetable oils, glacial acetic acid. An alcoholic soln becomes redder with HCl addition, but is unaltered by NaOH addition.
Melting point: mp 125-126° (Fischer)