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Ethoxyquin Basic information
Product Name: Ethoxyquin
Synonyms: 1,2-dihydro-2,2,4-trimethyl-6-ethoxyquinoline;2,2,4-trimethyl-6-ethoxy-1,2-dihydroquinoline;6-ethoxy-1,2-dihydro-2,2,4-trimethyl-quinolin;6-Ethoxyl-2,2,4-trimethyl-1,2-dihydrquinoline;amea100;antageaw;AntioxidantAW;antioxidantec
CAS: 91-53-2
MF: C14H19NO
MW: 217.31
EINECS: 202-075-7
Product Categories: Industrial/Fine Chemicals;INORGANIC & ORGANIC CHEMICALS;Antioxidant;Biochemistry;Amines;Aromatics;Heterocycles;C11 to C30;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks;Quinolines
Mol File: 91-53-2.mol
Ethoxyquin Structure
Ethoxyquin Chemical Properties
mp  <0°C
bp  123-125°C
density  1.03 g/mL at 20 °C(lit.)
refractive index  1.569~1.571
Fp  137 °C
storage temp.  0-6°C
solubility  ethanol: 50 mL/L, clear, brown
Water Solubility  <0.1 g/100 mL at 20 ºC
Merck  3753
Stability: Stable. Combustible. Incompatible with oxidizing agents, strong acids. Polymerizes if heated. May polymerize upon exposure to light and air.
CAS DataBase Reference 91-53-2(CAS DataBase Reference)
NIST Chemistry Reference Quinoline, 6-ethoxy-1,2-dihydro-2,2,4-trimethyl-(91-53-2)
Safety Information
Hazard Codes  Xn
Risk Statements  22
Safety Statements  24
WGK Germany  1
RTECS  VB8225000
F  2-8-10
Hazardous Substances Data 91-53-2(Hazardous Substances Data)
MSDS Information
Provider Language
1,2-Dihydro-6-ethoxy-2,2,4-trimethylquinoline English
SigmaAldrich English
Ethoxyquin Usage And Synthesis
Chemical Properties Yellow Liquid
Usage Antioxidant in feed and food; antidegradation agent for rubber.
Usage Antifungal
General Description Clear light yellow to dark brown viscous liquid. Discolors and stains badly. Mercaptan-like odor.
Air & Water Reactions Polymerizes and darkens in color on exposure to light and air. Insoluble in water.
Reactivity Profile Ethoxyquin may undergo a hazardous polymerization at temperatures above 320° F. Tends to polymerize and darken in color on exposure to light and air. Not compatible with oxidizing agents and with strong acids .
Fire Hazard Ethoxyquin is combustible.