"110604847"@en-us . . . . . "114787093"^^ . . . "butene"@en-us . "any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers"@en-us . . . "113944236"@en-us . "butylene"@en-us . . . "0"^^ . "0"^^ . . . "14787093-n"^^ . "any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers"@en-us . "butylene"^^ . .