0 B21R0.81 C(CCCCCCCCCBr)CCCCCCCCC(=O)O PI-14487 [2,0,0,0,0,0|2,0,0]=4 1 B21R0.81 CCCCCCCCCCCCCCCCCCCC(=O)O PI-19657 [2,0,0,0,0,0|1,0,0]=3 2 B21R0.36399 CCCCCCCCCCCCCCCCCCP(=O)(O)O PI-38452 [2,0,0,0,0,0|0,0,0]=2