vitamin a

Retinyl palmitate (Vitamin A palmitate) is a naturally-occurring phenyl analogue of retinol, with potential antineoplastic and chemopreventive activities.

Isotretinoin (13-cis-Retinoic acid) binds to and activates nuclear retinoic acid receptors (RARs), which act as transcription factors that promote cell differentiation and apoptosis. This naturally occurring retinoic acid has potential antineoplastic activity, exhibits immunomodulatory and anti-inflammatory responses, and inhibits ornithine decarboxylase, thereby decreasing polyamine synthesis and keratinization.

Retinyl acetate (Vitamin A acetate) is a group of unsaturated nutritional hydrocarbons, that contains retinal, retinol, retinoic acid, and several provitamins A carotenoids, among which beta-carotene is the most important.

9-cis-Vitamin A palmitate (9-cis-Retinyl palmitate) is a 9-cis isomer derived from the interaction of vitamin A palmitate in corn flakes, exhibiting 26% of the biological activity of the all-trans-vitamin A palmitate, the most biologically active form of vitamin A.

13-cis-Vitamin A palmitate (13-cis-Retinyl palmitate), a derivative of vitamin A palmitate found in corn flakes, is the 13-cis isomer with 75% of the biological activity of the all-trans form, the most active form of vitamin A [1].

Betaine chloride (Betaine hydrochloride) is an acidic form of betaine, a vitamin-like substance observed in grains and other foods; gains the amplification of DNA by decreasing the formation of secondary structure in GC-rich regions.

Folic acid is an orally active essential nutrient involved in the synthesis of DNA RNA and the production and maintenance of new cells. It exhibits antidepressant-like effects and can reduce the risk of neural tube defects in newborns. Folate deficiency can cause megaloblastic anemia, macrocytic anemia, neural tube closure defects, tumors, and aging-related diseases. Folic acid is also commonly used in research on folate deficiency-related conditions and to induce acute kidney injury models.

Menadione (Vitamin K3) is a synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.

Niacin (Nicotinic acid) is a water-soluble vitamin belonging to the vitamin B family, which occurs in many animal and plant tissues, with antihyperlipidemic activity. Niacin is converted to its active form niacinamide, which is a component of the coenzymes nicotinamide adenine dinucleotide (NAD) and its phosphate form, NADP.

Thiamine hydrochloride (Vitamin B1) is an essential micronutrient and a cofactor for many central metabolic enzymes.

L-Ascorbic acid (Vitamin C) is a natural product that is a potent reducing agent and antioxidant. L-Ascorbic acid functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen. L-Ascorbic acid is used in the treatment of scurvy.

Nicotinamide, a vitamin B3 derivative, is an inhibitor of SIRT1 (IC50=50-180 μM) and SIRT2 (IC50=2 μM). Nicotinamide can be used as a precursor of nicotinamide adenine dinucleotide or NAD+, which can be supplemented by dietary intake and can prevent or treat melanoglossia and pellagra.

Riboflavin (Vitamin B2) is a natural product, an endogenous human metabolite, and a micronutrient. Riboflavin is essential for the formation of two major coenzymes, flavin mononucleotide and flavin adenine dinucleotide. Riboflavin is involved in energy metabolism, cellular respiration, and antibody production, as well as normal growth and development.

Pyridoxine hydrochloride (Vitamin B6) is the 4-methanol form of vitaminB6 which is converted to pyridoxal phosphate which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid.

D-alpha-Tocopherol acetate (Vitamin E Acetate) is hydrolyzed to d-alpha-tocopherol (VE) and absorbed in the small intestine.

Cyanocobalamin is a cobalt-containing coordination compound generated by intestinal microbes and a natural water-soluble vitamin of the B-complex family that must combine with Intrinsic Factor for absorption by the intestine. Cyanocobalamin is necessary for hematopoiesis, neural metabolism, DNA, and RNA production, and carbohydrate, fat, and protein metabolism. B12 improves iron functions in the metabolic cycle and assists folic acid in choline synthesis. B12 metabolism is interconnected with that of folic acid. Vitamin B12 (Cobalamin) deficiency causes pernicious anemia, megaloblastic anemia, and neurologic lesions.

Retinoic acid (Tretinoin), a metabolite of vitamin A, is a natural agonist of the retinoic acid receptor RAR and inhibits RARα β γ (IC50=14 nM). Retinoic acid induces cellular differentiation, reduces cellular proliferation, and inhibits tumorigenesis.

Vitamin K1 (Phylloquinone) a fat-soluble, naturally occurring vitamin with antihemorrhagic and prothrombogenic activity.

Ergocalciferol (Vitamin D2 (Calciferol)) is a derivative of ergosterol formed by ultraviolet rays breaking of the C9-C10 bond with a strong inhibitory effect against bladder tumor promotion by sodium saccharin, and it induces cell differentiation in leukemia cells. Vitamin D2 is an inhibitor of DNA Polymerase.

Biotin (Vitamin H) is a water-soluble B-vitamin and is necessary for cell growth, the production of fatty acids, and the metabolism of fats and amino acids.

DL-Panthenol (DL-Pantothenyl alcohol) is the alcohol analog of pantothenic acid (vitamin B5) and is thus a provitamin of B5. In organisms, it is quickly oxidized to pantothenate.

Adenosylcobalamin (AdoCbl) is a biologically active form of vitamin B12 .It is a cofactor for methylmalonyl CoA mutase. It belongs to the corrinoid group of compounds, which contain a corrin macrocycle, and is produced only by certain bacteria and archaea. It is a cofactor for various enzymes including mutases, eliminases, aminomutases, and a reductase.

β-Carotene (Provitamin A) is a naturally-occurring retinol (vitamin A) precursor obtained from certain fruits and vegetables with potential antineoplastic and chemopreventive activities. As an anti-oxidant, beta carotene inhibits free-radical damage to DNA.

α-Vitamin E (Dexrabeprazole Sodium) is a naturally-occurring form of vitamin E, a fat-soluble vitamin with potent antioxidant properties.