(24S)-5,22-Stigmastadien-3.beta.-ol .beta.-Stigmasterol 83-48-7 NSC8095 STIGMASTEROL Stigmasta-5,22-dien-3-ol, (3.beta.)- Stigmasta-5,22-dien-3-ol, (3.beta.,22E)- Stigmasta-5,22-dien-3.beta.-ol Stigmasterin