0  B21R0.2907  CCCCCCCCCCCCCCCCCC(=O)OCC 20754 [0,0,0,0,0,0|0,0,2]=2
1  B19R0.182  CCCCCCCCCCCCCCCC(=O)OCC 20780 [2,0,0,0,0,0|0,0,0]=2