| Customization: | Available |
|---|---|
| CAS No.: | 11103-57-4 |
| Formula: | C20h30o |
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What 's the Vitamin A Powder?
Vitamin A, chemically called retinol, was the first vitamin to be discovered. There are two types of vitamin A. One is vitamin A alcohol (retionl), which is the original form of vitamin A (only found in animal foods); the other is carotene, which is converted into a preformed substance of vitamin A in the body (provitaminA, which can Intake from plant and animal foods); the measurement units of vitamin A are USP unit (United States Pharmacopea), IU unit (International Units), RE unit (ReChemicalbooktinolEquivalents) and so on. Vitamin A (vitaminA), also known as retinol (its aldehyde derivative retinal), is an unsaturated monohydric alcohol with an ester ring. Vitamin A includes two types of vitamins A1 and A2. Vitamin A1 and A2 have a similar structure) retinol can be synthesized from plant-derived β-carotene, and β-carotene can be catalyzed by β-carotene-15,15′-dioxygenase (dioxygenase) in vivo Converted into two molecules of retinal (ratinal), retinal is reduced to retinol under the action of retinal reductase. Therefore, β-carotene is also called provitamin A.
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