123687-02-5

Basic information

• Product Name: 3-acetamido-4-acetoxybenzenesulfonic acid
• Synonyms: 3-acetamido-4-acetoxybenzenesulfonic acid
• CAS NO: 123687-02-5
• Molecular Weight: 273.266
• Mol File: 123687-02-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3-acetamido-4-acetoxybenzenesulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3-acetamido-4-acetoxybenzenesulfonic acid(123687-02-5)
• EPA Substance Registry System: 3-acetamido-4-acetoxybenzenesulfonic acid(123687-02-5)

Safety Data

• Hazardous Substances Data: 123687-02-5(Hazardous Substances Data)

Upstream product

• 108-24-7 acetic anhydride 
• 98-37-3 2-aminophenol-4-sulfonic acid 

Downstream Products

• 70977-72-9 3'-Amino-2'-hydroxyacetophenone 

Relevant articles and documents

New preparation method of Pranlukast

The invention provides a new preparation method of drug Pranlukast for treating asthma. The new preparation method includes the specific steps that with 2-aminophenol-4-sulfonic acid as a starting material, a key intermediate 3-amino-2-hydroxyacetophenone is prepared by means of acylation, Fries rearrangement and deprotection, then reacts with 4-(phenylbutoxy)benzoic acid, and then is subjected to condensation with ethyl 1H-tetrazole-5-acetate, and finally preparation is achieved through ring closing under the acidic condition. Compared with the prior art, the raw material used for the new preparation method is low in price and easy to obtain, industrialization of a process can be achieved easily, and the obtained final product is high in purity; and no dangerous process exists, equipment is simple, and the route is novel.