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Table 2 Retention times (Rt), extracted ions and corresponding molecular fragments for the studied triterpenoids

From: Triterpenoid profiling and functional characterization of the initial genes involved in isoprenoid biosynthesis in neem (Azadirachta indica)

Triterpenoid Rt (min) Extracted ion (m/z) Fragment
Azadirachtin A (14) 7.4 703 [M + H-H2O]+
Azadirachtin B (15) 8.6 645 [M + H-H2O]+
Salannin (9) 21.3 597 [M + H]+
3-Deacetylsalannin (10) 18.5 555 [M + H]+
Nimbin (6) 18.0 541 [M + H]+
6-Deacetylnimbin (7) 14.7 499 [M + H]+
Nimbinene (12) 20.7 483 [M + H]+
6-Deacetylnimbinene (13) 16.5 441 [M + H]+
Nimbanal (8) 17.8 511 [M + H]+
Salannol acetate (11) 28.4 599 [M + H]+
Azadiradione (3) 16.3 451 [M + H]+
Epoxyazadiradione (4) 27.4 467 [M + H]+
Azadirone (1) 31.7 437 [M + H]+
Gedunin (5) 20.4 483 [M + H]+
Nimocinol (2) 29.9 453 [M + H]+