. "ethylene"^^ . . . . "114005801"@en-us . . . . . "114851157"^^ . . . "a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic"@en-us . "110652867"@en-us . . "ethene"@en-us . . "0"^^ . . . . "14851157-n"^^ . . . . "a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic"@en-us . . . "0"^^ . "ethylene"@en-us .