Structure Type

• Alkaloids
• Chalcones
• Xanthones
• Lignans
• Coumarins
• Phenylpropanoid
• Phenols
• Triterpenoids
• Diterpenoids
• Iridoids
• Terpenoids
• Steroids
• Anthraquinones
• Quinones
• Natural products
• Drug Impurities and Intermediates
• Flavonoids
• Sesquiterpenoids
• Limonoids