404338-09-6

Basic information

• Product Name: 2-Thiophenecarboxylicacid,4-amino-3-methoxy-,methylester(9CI)
• Synonyms: 2-Thiophenecarboxylicacid,4-amino-3-methoxy-,methylester(9CI)
• CAS NO: 404338-09-6
• Molecular Formula: C7H9NO3S
• Molecular Weight: 187.22
• Product Categories: AMINOACID;METHOXY
• Mol File: 404338-09-6.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-Thiophenecarboxylicacid,4-amino-3-methoxy-,methylester(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Thiophenecarboxylicacid,4-amino-3-methoxy-,methylester(9CI)(404338-09-6)
• EPA Substance Registry System: 2-Thiophenecarboxylicacid,4-amino-3-methoxy-,methylester(9CI)(404338-09-6)

Safety Data

• Hazardous Substances Data: 404338-09-6(Hazardous Substances Data)

Upstream product

• 89380-76-7 methyl 3-hydroxy-4-nitrothiothiophene-2-carboxylate 
• 5118-06-9 methyl 3-hydroxy-2-thiophenecarboxylate 
• 404338-08-5 methyl 3-methoxy-4-nitrothiophene-2-carboxylate 

Relevant articles and documents

Nitration of Methyl 3-Hydroxy- and 5-methyl-3-hydroxythipophene-2-carboxylate, and Some Chemistry of the Products

The nitration of methyl 3-hydroxythiophene-2-carboxylate furnishes two products, the lower melting of which was previously thought to be the 4-(3) and the other the 5-isomer (2); these assignments have been reversed on the basis of carbon-13 n.m.r. data. Further, the revised structures were confirmed both by O to N acyl migrations and by the preparation of the first examples (20) and (23) of the thieno[3,4-b][1,4]oxazine ring system from derivatives of the 4-nitro isomer.