| Company Name: |
BeiJing Hwrk Chemicals Limted
|
| Tel: |
0757-86329057 18934348241 |
| Email: |
sales4.gd@hwrkchemical.com |
| Products Intro: |
Product Name:4-amino-1-naphthol
CAS:2834-90-4
Purity:98.00% Package:1kg
|
|
| | 4-amino-1-naphthol Basic information |
| Product Name: | 4-amino-1-naphthol | | Synonyms: | 4-Amino-1-naphthalenol;4-amino-1-naphthol;1-Amino-4-naphthol;4-azanylnaphthalen-1-ol;1-Amino-4-hydroxynaphthalene | | CAS: | 2834-90-4 | | MF: | C10H9NO | | MW: | 159.18 | | EINECS: | | | Product Categories: | | | Mol File: | 2834-90-4.mol |  |
| | 4-amino-1-naphthol Chemical Properties |
| | 4-amino-1-naphthol Usage And Synthesis |
| Chemical Properties | Acicular crystals. Soluble in water. | | Uses | Inhibitor of polymerization, chemical intermediate. Must be kept dry during storage to avoid oxidation and discoloration. | | Production Methods | Orange I in aqueous alkaline solution is treated with sodium dithionite at 40 – 50℃, and the resulting suspension is heated to 70℃ to complete the reaction. The crude product is collected by filtration and dissolved in hot aqueous hydrochloric acid in the presence of a reducing agent. On cooling, needles of the hydrochloride salt crystallize and can be isolated in 70 % yield. Alternatively, the crude paste may be dissolved in dilute alkali in the presence of a reducing agent and acylated with acetic anhydride or acryloyl chloride, for example, to give 4- acetylamino-1-naphthol or 4-acryloylamino-1- naphthol, which have been used as azo coupling components. |
| | 4-amino-1-naphthol Preparation Products And Raw materials |
|