2-Pyrrolidinone, 3-methyl-5-(2-thienylmethyl)-, cis- 97561-80-3 SR 42009 cis-3-Methyl-5-(2-thienylmethyl)-2-pyrrolidinone cis-Methyl-3 (thienyl-2 methyl)-5 pyrrolidinone-2 [French]