CAS No.: 59-92-7
Dopa, which is found in some legumes, can be oxidized and polymerized under the action of oxidase to form melanin. The pods of some legumes turn black at maturity. Melanin, such as hair of human and a

CAS No.: 68-19-9
Vitamin B12 is the only kind of vitamin containing metal elements, which is widely used in medicine, food, health products, feed additives and other fields. Its family members mainly include Cyanocoba

CAS No.: 71-91-0
Quaternary ammonium salt is similar to inorganic salt in properties and soluble in water. It is mainly used as phase transfer catalyst for organic synthesis, curing accelerator for polymer polymerizat

CAS No.: 87-66-1
As one of the aromatic compounds, It is a very strong reducing agent. The first person to make it was Karl William Scheele, who was heated by gallic acid in 1786. Even benzene three phenol in the alka...

CAS No.: 87-69-4
L(+)-tartaric acid can be mainly used as an acidity regulator in food; it can also be used as a resolving agent of anti-tuberculosis drug intermediate DL-aminobutanol; as a raw material for the synthe...

CAS No.: 92-69-3
P-hydroxy biphenyls are used as dyes; An intermediate of resin and rubber. Red sensitization synthesized by p-hydroxybiphenyl; Green light additive is one of the main raw materials for color films and...

CAS No.: 92-91-1
4-Acetophenone is an important fine chemical intermediate, which is widely used in the chemical synthesis of pesticides, medicine and so on. It is an intermediate of biphenylacetic acid, a nonsteroida

CAS No.: 94-99-5
2,4-Dichlorobenzyl chloride is an important Pesticide and pharm intermediate. It can be used for making 2,4-dichlorophemethylol, 2,4-dichlorobenzaldehyde, 2,4-dichlorobenzyl cyanogens, 2,4-d