O,O-diethyl thiosulfite

bromosulfurous acid ethyl ester

2,6-(Dibrommethyl)-4-oxo-4H-pyran-3,5-dicarbonsaeure-diethylester

4-甲基苯甲脒盐酸盐

2-(1-amino-ethylidene)-N-phenyl-3-thio-malonamic acid ethyl ester