MS
MS2(406)
MS3(337)
406(100)[M+H]+
337(100) [M+H-C2H3N3]+
291(4) [M+H-C2H3N3-C2H6O]+
251(34) [M+H-C2H3N3-C4H6O2]+
291 [M+H-C2H6O]+
251 [M+H-C4H6O2]+
428(50)[M+Na]+
——