International Journal of Food Science / 2013 / Article / Tab 2 / Review Article
Ethoxyquin: An Antioxidant Used in Animal Feed Table 2 Physical and chemical properties of ethoxyquin.
Properties of EQ Molecular formula C14 H19 NO Molecular mass 217.34 [g mol−1 ] IUPAC name 1,2-dihydro-2,2,4-trimethylquinolin-6-yl ethyl ether CAS name 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline Chemical class Quinoline Melting point 0°Ca Boiling point 123–125°C at 2 mm Hga Solubility Insoluble in water, soluble in fat and animal and plant oils, and soluble in ethanol, methanol, DMSO, and DMF Vapor density 7.48 (AIR = 1)a Stability Stable under ordinary conditions, storage temp. 0–6°C
Spectral properties Index of refraction:
1.569–1.672 at 25°Ca Max absorption: 354 nm. Intense mass spectral peaks: 202 m/z (100%), 108 m/z (53%), 174 m/z (48%), and 137 m/z (36%)a
13 C NMR in CDCl3 EQ (8% solution)
in ppm: 151.2 (EQ-C-6); 137.6 (EQ-C-4); 129.5 (EQ-C-3); 128.5 (EQ-C-9); 122.8 (EQ-C-10); 114.6 (EQ-C-8); 113.6 (EQ-C-7); 111.1 (EQ-C-5); 64.2 (EQ-C H2 -O); 51.6 (EQ-C-2); 30.4 (EQ-C H3 -4); 18.5 (EQ-C H3 -4); 15.0 (EQ-C H3 -CH2 -O-)b
According to the National Library of Medicine HSDB Database (last revision date: 2003) [18 ].
b According to Błaszczyk and Skolimowski [19 ]. DMSO: dimethyl sulfoxide, DMF: N,N -dimethylformamide.