4-Methyl-5-hydroxyethyl thiazole Appearance:COLORLESS TO YELLOW LIQUID CONTENT :99% Molecular Weight: 143.20 4-Methyl-5-thiazoleethanol Identification Name 4-Methyl-5-thiazoleethanol Synonyms Sulfurol; 4-Methyl-5-(2'-hydroxyethyl)-thiazole; 4-Methyl-5-hydroxyethylthiazole; 5-(2-Hydroxyethyl)-4-methylthiazole; 4-Methyl-5-beta-hydroxyethyl thiazole Molecular Structure Molecular Formula C6H9NOS Molecular Weight 143.20 CAS Registry Number 137-00-8 EINECS 205-272-6 FEMA 3204 Properties Density 1.19 Boiling point 135 ºC (7 torr) Refractive index 1.548-1.551