58230-46-9
4-hydroxyimino-tetrahydro-thiophene-3-carboxylic acid methyl ester
→
~90%
39978-14-8
3-氨基噻吩-4-羧酸甲酯盐酸盐
2689-68-1
4-氧四氢噻酚-3-羧酸甲酯
~77%