{HEAD ~ Q} is independently selected from an alkyl, carbocylic, heterocyclic, halo, carbamoyl, sulfamoyl, carbonamido, sulfonamido, keto, {TAIL ~ sulfo}, nitro, hydroxyl, carboxyl, amino, alkoxy, alkoxycarbonyl, aryloxy, or arylthio group 
{ HEAD ~ Q } is independently selected from an alkyl , carbocylic , heterocyclic , halo , carbamoyl , sulfamoyl , carbonamido , sulfonamido , keto , { TAIL ~ sulfo } , nitro , hydroxyl , carboxyl , amino , alkoxy , alkoxycarbonyl , aryloxy , or arylthio group
HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH