2-pyrrolidinone, 4-phenyl- 4-Phenyl-2-pyrrolidanone 4-phenylpyrrolidin-2-one InChI=1/C10H11NO/c12-10-6-9(7-11-10)8-4-2-1-3-5-8/h1-5,9H,6-7H2,(H,11,12