1,1-Dichloro-3,3-dimethyl-2-butanone 1,1-Dichloro-3,3-dimethylbutan-2-one 2-BUTANONE, 1,1-DICHLORO-3,3-DIMETHYL- 22591-21-5 4-01-00-03313 (Beilstein Handbook Reference) BRN 1752918 Dichloromethyl tert-butyl ketone Dichloropinacolin Dichloropinakolin EINECS 245-111-7 omega,omega-Dichlorpinakolin [German]