Godavari Biorefineries Ltd. Manufactures Ethyl Crotonate. Godavari Biorefineries Ltd. Manufactures Alcohol based Chemicals, Sugar, Power, Industrial Alcohol, Heavy Organic Chemicals, Specialty Chemicals, Bio-fertilizers, Ethanol etc. The Ethyl Crotonate comes with clear colourless liquid appearance. The Ethyl Crotonate has purity of 99%. The Ethyl Crotonate has acidity of 0.5% w/w maximum. The Ethyl Crotonate has water content of 0.5% w/w maximum.