2,6,8-tris(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-5-methyl-1,3,7,9-tetrathia-5-azaspiro[3.5]nonane

2,4-二甲基氨基硫脲

(methylcarbamothioylamino)urea

dimethyl 5,5,6-trimethyl-2,2-diphenyl-7-sulfanylidene-1,6-diaza-5λ⁵-phosphabicyclo[3.2.0]hept-3-ene-3,4-dicarboxylate

dimethyl 6-methyl-2,2,5,5-tetraphenyl-7-sulfanylidene-1,6-diaza-5λ⁵-phosphabicyclo[3.2.0]hept-3-ene-3,4-dicarboxylate