Dehydrocholesterols

**Definition:** Cholesterol derivatives having an additional double bond in any position. The prevalent isomer 7-dehydrocholesterol is a precursor of cholesterol and of vitamin D3.

**Tree numbers:** - D04.210.500.247.222.222.347.200 - D04.210.500.247.808.197.250 - D10.570.938.208.320