7-Dehydrocholesterol (7-DHC)
![7-Dehydrocholesterol (7-DHC)](/Upload/item/img/7-Dehydrocholesterol-(7-DHC)-93057.jpg)
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. In insects it is a precursor for the hormone ecdysone, required for reaching adulthood. 7-Dehydrocholesterol absorbs UV light most effectively at wavelengths between 290-320nm and thus the production of vitamin D3 will only occur at those wavelengths. The two most important factors that govern the generation of pre-vitamin D3 are the quantity (intensity) and quality (appropriate wavelength) of the UVB irradiation reaching the 7-dehydrocholesterol deep in the stratum basale and stratum spinosum.
Organism species: Homo sapiens (Human)
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- Competition ELISA CED057Hu ELISA Kit for 7-Dehydrocholesterol (7-DHC) In Stock
Organism species: Pan-species (General)
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