What Is 7-Dehydrocholesterol?

Properties of 7-Dehydrocholesterol:
CAS:434-16-2
Molecular Formula:C27H44O
Formula Weight:384.64g/mol

7-Dehydrocholesterol is a zoosterol that functions in the serum as a cholesterol precursor, and is converted to vitamin D3 in the skin, therefore functioning as provitamin-D3. The presence of this compound in human skin enables humans to manufacture vitamin D3 from ultra-violet rays in the sun light, via an intermediate isomer pre-vitamin D3. It is also found in the milk of several mammalian species. It was discovered by Nobel-laureate organic chemist Adolf Windaus.

The DHCR7 gene provides instructions for making an enzyme called 7-dehydrocholesterol reductase. This enzyme is responsible for the final step in cholesterol production in many types of cells. Specifically, 7-dehydrocholesterol reductase converts a molecule called 7-dehydrocholesterol to cholesterol. 7-Dehydrocholesterol is used as key intermediate of Vitamin D3, additive of cosmetic, and lab reagent.

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