Sub Group: Research Compounds Catalog Number: 9911 Formula: C18H21NaO5S CAS Number: 438-67-5 Molecular Weight: 372.41 Synonyms: Estra-1,3,5(10)-trien-17-one 3-(Sulfooxy) Sodium SaltEstrone Sulfate Sodium SaltConestoralEstrone Sodium SulfateMorestinNSC 183