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- 2,2'-bithiophene
- 2-(2-butoxyethoxy)ethanol
- 2-(2-butoxyethoxy)ethanol--butyl carbitol-- diethylene glycol monobutyl ether
- 2-(2'-chloroethoxy)ethanol
- 2,2'-di-amine; diethanolamine
- 2,2'-diaminoazobenzene
- 2,2'-diaminobenzophenone
- 2,2'-diaminodiethylamine
- 2,2'-diaminodiethylamine-- diethylenetriamine
- 2,2'-diaminodiethylamine; diethylenetriamine
- 2,2'-diaminostilbene
- 2,2'-dibromoazobenzene
- 2,2-di--butane
- 2,2-dichloro-1-methyl-cyclopropane
- 2,2-dichlorobutane
- 2,2-dichloroethanol
- 2,2-dichloropropane
- 2,2-dichloropropane--acetone chloride
- 2,2-difluoropopane
- 2,2-difluoropopane--acetone fluoride
- 2,2-difluorotetrachloro-ethane
- 2,2'-dihydroxy-1,1'-binaphthyl
- 2,2'- dihydroxy-4,4'- dimethoxybeniophenone
- 2,2'-dihydroxy-4-methoxybenzophenone
- 2,2'-dihydroxy-6,6'-dinaphthyldisulfide
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