3,3-dicyanomethylidene-2,3-dihydrothiophen -1,1-dioxide...
3-amino-4-carboalkoxy-benzoic acid 4'-phenoxy-anilides,...
3-phenyl-7-(v-triazol-2-yl)-coumarins
3-spiro-cyanin fluorochromes and their use in bioassays
3-sulphoalkyl-6-hydroxy-pyrid-(2)-ones, their manufacture...