(24R)-5-Ergosten-3beta-ol (24R)-Ergost-5-en-3beta-ol 137764-28-4 24alpha-Methylcholesterol 474-62-4 CAMPESTEROL Campesterin Campestrol EINECS 207-484-4 Ergost-5-en-3-ol, (3beta,24R)- Ergost-5-en-3beta-ol, (24R)- (8CI) NSC 224330 delta5-24-Isoergosten-3beta-ol