Withanolide B Withanolide D PubChem CID: 14236711 PubChem CID: 161671 Molecular Formula: C28H38O5 Molecular Formula: C28H38O6 Chemical Class: Steroidal Lactone Chemical Class: Steroidal Lactone Withanolide E Withanone PubChem CID: 301751 PubChem CID: 21679027 Molecular Formula: C28H38O7 Molecular Formula: C28H38O6 Chemical Class: Steroidal Lactone Chemical Class: Steroidal Lactone Viscosalactone