sulfopropyl
ethoxyl
isoprenyl
allylamino
sulfamyl
thioethyl
valeryl
allylamine
oxyallyl
tertiary butyl
fumaryl
glycolyl
malonyl
butanol
iminoethyl
carboxymethyl
dichlorine
cyanoacetyl
thioacrolein
sulfoxymethyl
nitromethyl
triflimide
styryl
dibutylamine
propidine
dichloro-
isopropenyl
vinyltrimethylsilane
methylthio
diglycolic acid
hydroxyacetone
dichloromethylene
crown ether
carbonyl group
butadienoic acid
nitrite
vinyl bromide
diethylamine
benzylic
cacodyl
isovaleryl
methylvinyldichlorosilane
methoxycarbonyl
butenone
benzyloxy
chromeno
chloromethylsulfonyl
ureido-
difluoromethyl
myristyl