4-Nitrobenzoic acid hydrazide636-97-531 % similar 2,5-Dichlorobenzhydrazide67487-35-831 % similar 1H-Pyrazol-1-ylmethanol7170-01-630 % similar 4,5-Dihydro-1H-1,2,4-triazol-5-one930-33-630 % similar 4-(Trifluoromethoxy)benzoic acid hydrazide175277-18-630 % similar 4-Ethoxybenzhydrazide58586-81-530 % similar