34084-89-4
7-硝基苯并[b]噻吩-2-羧酸甲酯
→
~99%
616238-78-9
Benzo[b]thiophene-2-carboxylic acid, 7-amino-, methyl ester (9CI)
58755-57-0
2-氯-3-硝基苯甲醛