2,2'-AZOBIS[2-METHYL-N-[1,1-BIS(HYDROXYMETHYL)-2-HYDROXYETHYL]PROPIONAMIDE]

2,2-Bis(hydroxymethyl)-2,2',2''-nitrilotriethanol

2,2-BIS[4-(4-AMINOPHENOXY)PHENYL]HEXAFLUOROPROPANE

2,2'-Diaminodiphenyl disulphide

2,2'-DICHLOROBENZOPHENONE

2,2-Diethoxyacetophenone