prov:value
| - an alkyl group substituted with a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and the like a haloalkyl group such as a chloromethyl, dichloromethyl, trichloromethyl, difluoromethyl, trifluoromethyl, 2,2,2-trichloroethyl group or the like,
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