What does P-II stand for?

P-II stands for Pd-Ia , pteryxin, peucedanocoumarin II

This definition appears rarely

Samples in periodicals archive:

(Pra-C), Pd-Ia (=(+/-)-praeruptorin A), pteryxin, peucedanocoumarin II (P-II) and 8; These results suggest that Pd-Ia, pteryxin and Pra-C for their...