2-Pyrrolidinone, 1-methyl-, compd. with octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (1:1) 3531-64-4 N-Methyl-2-pyrrolidinone, compound with octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (1:1)