The cyanoacrylate adhesive may be {HEAD ~ any} of {TAIL ~ the alkyl} substituted cyanoacrylates, preferably methylcyanoacrylate, ethylcyanoacrylate, isopropylcyanoacrylate or isobutylcyanoacrylate 
The cyanoacrylate adhesive may be { HEAD ~ any } of { TAIL ~ the alkyl } substituted cyanoacrylates , preferably methylcyanoacrylate , ethylcyanoacrylate , isopropylcyanoacrylate or isobutylcyanoacrylate
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH