8072. Quinoline Yellow Spirit Soluble

Nomenclature

CAS number: 8003-22-3
C.I. Solvent Yellow 33; quinoline yellow base; quinoline yellow A; D & C Yellow No. 11; C.I. 47000.

Description and references

Synthetic dye consisting principally of quinophthalone (2-(2-quinolinyl)-1H-indene-1,3-(2H)-dione). Prepn: M. C. Traub, Ber. 16, 297 (1883); E. Jacobsen, C. L. Reimer, ibid. 1082; Colour Index vol. 4 (3rd ed., 1971) p 4435. 13C-NMR spectrum: M. Gelbcke et al., Bull. Soc. Chim. Belg. 91, 237 (1982). Composition and skin sensitivity: Y. Sato et al., Contact Dermatitis 10, 30 (1984); S. Kita et al., ibid. 11, 210 (1984). Inhalation toxicity in animals: T. C. Marrs et al., Hum. Toxicol. 3, 289 (1984).

Chemical structure

Properties

Bright greenish yellow. Insol in water. Slightly sol in ethanol (yellow), linseed oil, mineral oil, oleic acid, paraffin wax, stearic acid, turpentine. Sol in acetone, chloroform, benzene, toluene. Yellow brown in conc H2SO4, yellow flocculent ppt in dilution.

Use

In spirit lacquers, polystyrenes, polycarbonates, polyamides, and acrylic resins. In colored smokes. Occasionally in hydrocarbon solvents. In externally applied drugs and cosmetics.