Norgestimate Synonyms: D-(17A)-17-Acetoxy-13-ethyl-18, 19-dinorpregn-4-en-20-yn-3-oneoxime; Norgestimate powder; Norgestimate steroid CAS: 35189-28-7 Formulae: C23H31NO3 Molecular Weight: 369.50 Density: 1.221 g/cm3 liquefactio Point: 216 ° C Fervens: 497.896 ° C at 760 mmHg Flash Point: 254.919 ° C Appearance: White crystalline solid Purity: 98%