Methyl 3-({[5-oxo-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)thiophene-2-carboxylate 1g

Methyl 3-({[5-oxo-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)thiophene-2-carboxylate 1g