100728-48-1

Basic information

• Product Name: Phenol, 3-methoxy-4-[(2-nitrophenyl)azo]-
• CAS NO: 100728-48-1
• Molecular Formula: C13H11N3O4
• Molecular Weight: 273.248
• Mol File: 100728-48-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phenol, 3-methoxy-4-[(2-nitrophenyl)azo]-(CAS DataBase Reference)
• NIST Chemistry Reference: Phenol, 3-methoxy-4-[(2-nitrophenyl)azo]-(100728-48-1)
• EPA Substance Registry System: Phenol, 3-methoxy-4-[(2-nitrophenyl)azo]-(100728-48-1)

Safety Data

• Hazardous Substances Data: 100728-48-1(Hazardous Substances Data)

Upstream product

• 150-19-6 O-methylresorcine 
• 119-66-4 2-nitrobenzenediazonium chloride 
• 25910-37-6 2-Nitrophenyldiazonium 

Downstream Products

• 114462-09-8 4-(2'H-benzotriazol-2'-yl)-3-methoxyphenol 
• 22607-31-4 2-(2`,4`-dihydroxyphenyl)-1,2,3-benzo(2H)triazole 

Relevant articles and documents

Preparation of Some 2-(Methoxyphenyl)-2H-benzotriazoles and the Corresponding Hydroxyphenyl Compounds

The reaction of several substituted o-nitronitrosobenzenes with o- and p-anisidine, and 2,4-dimethoxyaniline in acetic acid gives in good yield the corresponding o-nitroazobenzenes which are readily reduced with thiourea dioxide (formamidinesulfinic acid) to the corresponding 2-(methoxyphenyl)-2H-benzotriazoles, demethylation of which furnished the corresponding 2-(hydroxyphenyl)-2H-benzotriazoles.Demethylation of the dimethoxy derivatives was best accomplished with boron tribromide in methylene chloride, the methoxy group located ortho to the benzotriazole ring beingdemethylated more readily than is the para-methoxy group.The reaction of 0-nitroazobenzenes containing a methoxy group with hydrobromic acid in acetic acid results in cleavage of the azo bond and also partial bromination to give o-nitroaniline and some of its brominated derivatives.