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Vitamin A known as retinol (the aldehyde derivative retinal) or anti-dry eye factor, is an unsaturated monohydric alcohol with an alicyclic ring, including vitamin A1 and A2, which are animal food sources. A class of substances that have the biological activity of retinol. Vitamin A is a fat-soluble vitamin in the classification, and also belongs to fat-soluble vitamins such as vitamin D (also known as calciferol), vitamin E (also known as tocopherol) and vitamin K (also known as blood coagulation vitamin); the other is water-soluble Sexual vitamins, mainly B vitamins (mainly including B1, B2, B3, B6, B12), vitamin C (also known as ascorbic acid), vitamin PP (also known as niacin), vitamin H (also known as biotin) and vitamin M (also known as folic acid) and so on.
| Properties | |
| Molecular Weight | 286.456 |
| Physical Description | Light yellow viscous oily liquid |
| Purity | 98.0% |
| Storage Condition | -20 ° C |
| Molecular Formula | C20H30O |



