Ethoxyquin
Title: Ethoxyquin
CAS Registry Number: 91-53-2
CAS Name: 6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline
Additional Names: 1,2-dihydro-6-ethoxy-2,2,4-trimethylquinoline; EMQ
Trademarks: Santoflex; Santoquin (Novus)
Molecular Formula: C14H19NO
Molecular Weight: 217.31
Percent Composition: C 77.38%, H 8.81%, N 6.45%, O 7.36%
Literature References: Prepn: Knoevenagel, Ber. 54, 1722 (1921); Baird et al., GB 505113 (1939 to ICI); C. C. Tung, Tetrahedron 19, 1685 (1963). Structure: Cliffe, J. Chem. Soc. 1933, 1327. Metabolism: R. H. Wilson et al., Agric. Food Chem. 7, 206 (1959); J. U. Skaare, E. Solheim, Xenobiotica 9, 649 (1979). Toxicity data: V. I. Piul'skaya et al., C.A. 90, 4601c (1979).
Properties: Yellow liquid. bp2 123-125°. nD25 1.569-1.672. d2525 1.029-1.031. LD50 orally in rats, mice: 1920, 1730 mg/kg (Piul'skaya).
Boiling point: bp2 123-125°
Index of refraction: nD25 1.569-1.672
Density: d2525 1.029-1.031
Toxicity data: LD50 orally in rats, mice: 1920, 1730 mg/kg (Piul'skaya)
Use: Antioxidant in feed and food; antidegradation agent for rubber.

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