2018年11月27日星期二

Vitamin A

Product name:Vitamin A
CAS: 68-26-8
Molecular Formula:C20H28O
Molecular Weight:286.452
Product description:In water, soluble in water, ethanol, emulsification. And insoluble in vegetable oil, mineral oil and fat.Prevent nyctalopia and decreased visual acuity, helps in the treatment of A variety of eye diseases (vitamin A can promote the formation of intraocular photosensitive pigment).Help the immune system function normally.

Vitamin A Palmitate

Product name:Vitamin A Palmitate
CAS: 79-81-2
Molecular Formula: C36H60O2
Molecular Weight: 524.87
Product description:Pale yellow crystalline or oil solution, soluble in ethanol, soluble in ether, chloroform, acetone and oil esters, melting point 28 ~ 29 ℃.Prevent night blindness and vision loss; Contribute to the treatment of A variety of eye diseases (vitamin A can promote the formation of intraocular photosensitive pigment).

Vitamin B12

Product name:Vitamin B12
CAS:68-19-9
Molecular Formula: C63H88CoN14O14P
Molecular Weight: 1355.37
Product description:One of the B vitamins, is a kind of complex organic compounds containing cobalt. Centered on the molecular structure of cobalt ions of goo moiety and 5, 6 - dimethyl benzene ring and imidazole as nucleotide bases.

Vitamin B15

Product name:Vitamin B15
CAS: 20858-86-0
Molecular Formula: C10H19NO8
Molecular Weight: 0
Product description:Prolonging the life of the cell; Ease of alcoholism; Quickly eliminate fatigue; Reduce cholesterol levels in the blood; The body to resist pollution pollutants invasion; Ease of coronary artery stenosis and asthma symptoms; Prevent cirrhosis of the liver; To prevent a hangover; To stimulate an immune response; Help protein synthesis.

Vitamin B4

Product name:Vitamin B4
CAS: 70700-30-0
Molecular Formula: Vitamin B4
Molecular Weight: 233.12
Product description:White needle crystal. 220 ℃ sublimation, 220-360 ℃. Soluble in acid and alkali, slightly soluble in alcohol, insoluble in ether and chloroform. Aqueous solution is neutral. Has strong salty. By 4, 6 - dichloro - 5 - nitro pyridine with ammonia ammoniation amino - 5-4, 6-2 nitro pyrimidine, again with formic acid, formyl ammonia and sodium thiosulfate cyclization. Is mainly used to take part in the synthesis of DNA and RNA, used in radiotherapy, antitumor and benzene poisoning caused by white blood cells reduce disease, used for acute granulocytopenia disease, medicine and biochemical research.

Vitamin B6

Product name:Vitamin B6
CAS: 8059-24-3
Molecular Formula: C8H10NO5P
Molecular Weight: 231.14
Product description:With plain B6 hydrochloride for white or white crystalls or crystal powder; Odourless, taste bitter, acid in alkaline solution, are susceptible to damage in case of light or high temperature. By a mixture of ethanol and acetone recrystallization, tabular or columnar crystals. In 206 ℃ melting and part of the decomposition.

Vitamin C

Product name:Vitamin C
CAS: 50-81-7
Molecular Formula: C6H8O6
Molecular Weight: 176.12
Product description:White or slightly yellowish crystalls or crystal powder, odourless, has a sour taste. Melting point of 190 ~ 192 ℃, polarimetric alpha D20 = + 21 ° ~ + 22 °. Soluble in water, soluble in ethanol, insoluble in chloroform, ether and benzene. 5% of the aqueous solution Ph value of 2.2 ~ 2.2. In dry air is stable, its aqueous solution is not stable, especially in the neutral or alkaline solution was quickly oxidation, with light, heat and copper, iron and other metal ions will be accelerated oxidation.