4-amino-1-naphthol
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
- Mol File:
- 2834-90-4.mol
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
Raw materials
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4-amino-1-naphthol(2834-90-4)Related Product Information
- 4-Amino-1-naphthol hydrochloride
- 4-amino-1-naphthol
- 1-METHOXY-4-NITRONAPHTHALENE
- FLAVIANIC ACID
- NAPHTHOL YELLOW S
- ORANGE I
- Martius Yellow
- Solvent Red 3
- VITAMIN K5
- VITAMIN K5
- 4-(4-NITROPHENYLAZO)-1-NAPHTHOL
- 1-METHOXY-4-(PHENYLAZO)NAPHTHALENE
- 10-(2',4'-DINITROPHENYLAZO)-9-PHENANTHROL
- 2,4-DINITRO-1-NAPHTHOL,SODIUMSALT
- ANILINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID
- 1-HYDROXY-4-(2-HYDROXY-5-CARBOXY)-PHENYLAZO-N-(METHYL-OCTADECYLAMINO-5-SULFO)-2-NAPHTHAMIDE
- 2,4-DINITROSO-1,3-NAPHTHALENEDIOL
- 1-HYDROXY-4-(3-BUTYLAMINOSULFONYL)-PHENYLAZO-N-(2-METHYL-OCTADECYLAMINO-5-SULFO)-2-NAPHTHAMIDE