97%    LC-MS  H  C谱  告知货期和价格

3-Isobutyl-1-methoxy-4-[4-(3-methyl-but-2-enyloxy)-phenyl]-pyrrole-2,5-dione

C20H25NO4

Exact Mass: 343.18

Mol. Wt.: 343.42

m/e: 343.18 (100.0%), 344.18 (23.2%), 345.19 (2.5%)

C, 69.95; H, 7.34; N, 4.08; O, 18.64