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. 2023 Apr 13;12(1):A0120. doi: 10.5702/massspectrometry.A0120

Table 2. Evaluation of the accuracy of the pEI library search method for six compounds that were not registered in NIST 20.

Compound name Formula Similarity Rank: pEI library search Rank: brute-force search
Cafenstrole C16H22N4O3S 0.741 3 (2933) 229
MCPA-thioethyl C11H13ClO2S 0.735 1 (729) 232
Propaphos C13H21O4PS 0.802 1 (27) 1
CNP-amino C12H8Cl3NO 0.710 14 (618) 1254
Butamifos oxon C13H21N2O5P 0.675 1 (56) 12822
Isoxadifen-ethyl C18H17NO3 0.586 22 (5348) 42199