FC no. and composition | Calculated monoisotopic MH+ | Observed monoisotopic MH+ | MS2 principal ions | MS3 principal ions | Chemical purity (%) |
---|---|---|---|---|---|
FC-316 (C34H52N16O12) | 877.4 | 877.3, 830.5 | — | — | >90 |
FC-323 (C16H31N7O3) | 370.3 | 370.2 | 323.2 | 223.1, 266.1, 280.1, 306.2, 237.2, 197.1, 194.1 | >95 |
FC-325 (C16H31N7O2) | 354.3 | 354.4 (743.3, 2MH+·HCl also observed for HCl salt) | 307.3, 164.3, 207.2, 294.3, 280.2, 250.3, 181.3, 150.3, 141.2, 127.1 | — | >92 |
FC-327 (C22H38N10O4) | 507.3 | 507.4 | 460.4 | 164.3, 294.3, 207.2, 150.2, 413.4, 287.3, 347.3, 337.4, 334.3, 137.2 | >99 |
FC-328 (C28H45N13O6) | 660.4 | 660.4 | 613.5 | 280.2, 566.4, 294.3, 490.3, 500.5, 417.3, 403.3, 360.2, 207.1, 190.2 | >95 |
FC-334 (C22H38N10O4) | 507.3 | 507.4 | 460.4, 164.3 | 164.3, 413.5, 207.2, 150.2, 337.3, 294.2, 280.3, 347.5, 137.2, 403.4 | >99 |
FC-339 (C17H32N8O3) | 397.3 | 397.3 | 350.3, 297.2, 211.1, 244.1, 270.2 | 332.2, 250.2, 207.0, 266.2, 264.2, 333.2, 290.3, 307.2, 252.2, 235.1, 224.1, 182.0 | >95 |
FC-343 (C22H34N10O6) | 535.3 | 535.4 | 488.3, 459.3, 422.3 | 377.2, 403.3, 167.1, 235.2, 193.1, 278.1, 150.2, 441.2, 322.1, 254.1, 210.9, 446.4, 275.1, 164.1, 418.5 | >99 |
MH+ = neutral monoisotopic mass + H+; MS2 and MS3 = second- and third-stage fragmentation analyses.
Principal product ions are listed in order of decreasing intensity. Italicized mass entries denote ions selected for next stage of MSn analysis in situations with more than 1 candidate.