2-Acetyl thiazole: Appearance: Colorless to yellow clear oily liquid Odor: Nutty popcorn roasted peanuts hazelnut Assay (GC): ≥99% Specific gravity @ 25°C 1.219 ~ 1.226 Refractive index @ 20°C 1.542 ~ 1.552 Flash point (°C): 78 2-Acetylthiazole Identification Name 2-Acetylthiazole Synonyms 1-(2-thiazolyl)-ethanone Molecular Structure Molecular Formula C5H5NOS Molecular Weight 127.16 CAS Registry Number 24295-03-2 EINECS 246-134-5 FEMA 3328 Properties Density 1.22 Melting point 65.5 ºC Boiling point 89-91 ºC (12 torr) Refractive index 1.547-1.549 Flash point 78 ºC