Formaldehyde
3-Acetyl-2,5-dichlorothiophene
2,5-DICHLOROTHIOPHENE-3-CARBONYL CHLORIDE
ETHYL 2-AMINO-5-ETHYLTHIOPHENE-3-CARBOXYLATE
DIETHYL 5-AMINO-3-METHYL-2,4-THIOPHENEDICARBOXYLATE
ETHYL 2-AMINO-4-METHYLTHIOPHENE-3-CARBOXYLATE
2-Thiophenecarboxaldehyde
METHYL 4-[(4-CHLOROPHENYL)THIO]THIOPHENE-3-CARBOXYLATE
2-NITROTHIOPHENE-4-CARBOXALDEHYDE
5-Ethyl-2-thiophenecarboxaldehyde