2,2'-DICHLOROBENZILIC ACID

2,2-Dichloropropionic acid

2,2-DIMETHYL-2H-CHROMENE-6-CARBONITRILE

2,2-DIMETHYL-5-PHENYL-1,3-DIOXANE-4,6-DIONE

METHYL 2,2-DIMETHYLACETOACETATE

1,4-DIHYDROXY-2,2-DIMETHYLPIPERAZINE

2,2-diphenylbutyric acid

2,2'-Dithiobis(benzothiazole)

2,2'-Dithiosalicylic acid