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Wm. Craig Byrdwell, phd |
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Taking Lipid Analysis into the 21st Century |
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Copyright © 2005-2009 Byrdwell.com
The figures and tables on this website are copyrighted in 2005-2009 by William Craig Byrdwell. If you use these tables please reference www.Sphingomyelin.com |
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Calculated monoisotopic masses of Sphingomyelin and Dihydrosphingomyelin and their adducts and fragments are based on the following atomic isotope masses:
1H = 1.0078250321 12C = 12.000000 14N = 14.0030740052 16O = 15.9949146221 23Na = 22.98976967 31P = 30.97376151
These masses are the most recent suggested isotopic masses from the National Institute of Standards and Technology (NIST) at:
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![Text Box: A conveniently printable .pdf version of this mass list (6 pages), sorted by Long-Chain Base, is available HERE
An even better printable .pdf version of this mass list (6 pages), sorted by Fatty Amide Chain, is available HERE
The BEST printable .pdf version of this mass list (5 pages), sorted by [M+H]+, mass is available HERE](image1500.gif)
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Although the most common Dihydrosphingomyelin (DSM) molecular species in most tissue types have a d18:0 Sphinganine Long-Chain Base (LCB), some samples types contain a greater diversity of Long-Chain Bases. The most common DSM molecular species having several different Long-Chain Bases are given on this page and in the Master List. |
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Copyright © 2005-2009 Byrdwell.com
The figures and tables on this website are copyrighted in 2005-2009 by William Craig Byrdwell. If you use these tables please reference www.Sphingomyelin.com |
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*NOTE: APCI-MS gives fragments at [M+45-2H]– in negative-ion mode, not [M+45]–, meaning that two hydrogens are lost from the formate adduct. This is perhaps due to formation of a cyclic structure in the adduct. |
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16:0 |
26:0 |
817.72 |
839.70 |
855.67 |
861.71 |
801.68 |
634.65 |
616.64 |
420.42 |
396.42 |
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17:0 |
26:0 |
831.73 |
853.71 |
869.69 |
875.72 |
815.70 |
648.67 |
630.66 |
420.42 |
396.42 |
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18:0 |
26:0 |
845.75 |
867.73 |
883.70 |
889.74 |
829.72 |
662.68 |
644.67 |
420.42 |
396.42 |
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19:0 |
26:0 |
859.76 |
881.75 |
897.72 |
903.75 |
843.73 |
676.70 |
658.69 |
420.42 |
396.42 |
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20:0 |
26:0 |
873.78 |
895.76 |
911.73 |
917.77 |
857.75 |
690.71 |
672.70 |
420.42 |
396.42 |
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16:0 |
26:1 |
815.70 |
837.68 |
853.66 |
859.69 |
799.67 |
632.63 |
614.62 |
418.40 |
394.40 |
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17:0 |
26:1 |
829.72 |
851.70 |
867.67 |
873.71 |
813.68 |
646.65 |
628.64 |
418.40 |
394.40 |
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18:0 |
26:1 |
843.73 |
865.71 |
881.69 |
887.72 |
827.70 |
660.67 |
642.66 |
418.40 |
394.40 |
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19:0 |
26:1 |
857.75 |
879.73 |
895.70 |
901.74 |
841.72 |
674.68 |
656.67 |
418.40 |
394.40 |
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20:0 |
26:1 |
871.76 |
893.75 |
909.72 |
915.75 |
855.73 |
688.70 |
670.69 |
418.40 |
394.40 |
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16:0 |
26:2 |
813.68 |
835.67 |
851.64 |
857.67 |
797.65 |
630.62 |
612.61 |
416.39 |
392.39 |
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17:0 |
26:2 |
827.70 |
849.68 |
865.66 |
871.69 |
811.67 |
644.63 |
626.62 |
416.39 |
392.39 |
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18:0 |
26:2 |
841.72 |
863.70 |
879.67 |
885.71 |
825.68 |
658.65 |
640.64 |
416.39 |
392.39 |
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19:0 |
26:2 |
855.73 |
877.71 |
893.69 |
899.72 |
839.70 |
672.67 |
654.66 |
416.39 |
392.39 |
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20:0 |
26:2 |
869.75 |
891.73 |
907.70 |
913.74 |
853.72 |
686.68 |
668.67 |
416.39 |
392.39 |
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Calculated Monoisotopic Masses for DSM Species (which contain a Saturated Long-Chain Base) |
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+ESI |
-ESI* |
-ESI/-APCI |
+APCI |
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LCB (CN:d.b.) |
Fatty Amide (CN:d.b.) |
[M+H]+ |
[M+Na]+ |
[M+K]+ |
[M +45]- formate |
[M-15]- |
[Cer-H2O+H]+ |
[Cer-2H2O+H]+ |
[FA (L)]+ |
[FA (S)]+ |
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16:0 |
6:0 |
537.40 |
559.39 |
575.36 |
581.39 |
521.37 |
354.34 |
336.33 |
140.11 |
116.11 |
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17:0 |
6:0 |
551.42 |
573.40 |
589.37 |
595.41 |
535.39 |
368.35 |
350.34 |
140.11 |
116.11 |
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18:0 |
6:0 |
565.43 |
587.42 |
603.39 |
609.42 |
549.40 |
382.37 |
364.36 |
140.11 |
116.11 |
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19:0 |
6:0 |
579.45 |
601.43 |
617.41 |
623.44 |
563.42 |
396.38 |
378.37 |
140.11 |
116.11 |
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20:0 |
6:0 |
593.47 |
615.45 |
631.42 |
637.46 |
577.43 |
410.40 |
392.39 |
140.11 |
116.11 |
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16:0 |
6:1 |
535.39 |
557.37 |
573.34 |
579.38 |
519.36 |
352.32 |
334.31 |
138.09 |
114.09 |
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17:0 |
6:1 |
549.40 |
571.39 |
587.36 |
593.39 |
533.37 |
366.34 |
348.33 |
138.09 |
114.09 |
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18:0 |
6:1 |
563.42 |
585.40 |
601.37 |
607.41 |
547.39 |
380.35 |
362.34 |
138.09 |
114.09 |
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19:0 |
6:1 |
577.43 |
599.42 |
615.39 |
621.42 |
561.40 |
394.37 |
376.36 |
138.09 |
114.09 |
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20:0 |
6:1 |
591.45 |
613.43 |
629.41 |
635.44 |
575.42 |
408.38 |
390.37 |
138.09 |
114.09 |
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16:0 |
8:0 |
565.43 |
587.42 |
603.39 |
609.42 |
549.40 |
382.37 |
364.36 |
168.14 |
144.14 |
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17:0 |
8:0 |
579.45 |
601.43 |
617.41 |
623.44 |
563.42 |
396.38 |
378.37 |
168.14 |
144.14 |
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18:0 |
8:0 |
593.47 |
615.45 |
631.42 |
637.46 |
577.43 |
410.40 |
392.39 |
168.14 |
144.14 |
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19:0 |
8:0 |
607.48 |
629.46 |
645.44 |
651.47 |
591.45 |
424.42 |
406.40 |
168.14 |
144.14 |
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20:0 |
8:0 |
621.50 |
643.48 |
659.45 |
665.49 |
605.47 |
438.43 |
420.42 |
168.14 |
144.14 |
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16:0 |
8:1 |
563.42 |
585.40 |
601.37 |
607.41 |
547.39 |
380.35 |
362.34 |
166.12 |
142.12 |
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17:0 |
8:1 |
577.43 |
599.42 |
615.39 |
621.42 |
561.40 |
394.37 |
376.36 |
166.12 |
142.12 |
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18:0 |
8:1 |
591.45 |
613.43 |
629.41 |
635.44 |
575.42 |
408.38 |
390.37 |
166.12 |
142.12 |
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19:0 |
8:1 |
605.47 |
627.45 |
643.42 |
649.46 |
589.43 |
422.40 |
404.39 |
166.12 |
142.12 |
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20:0 |
8:1 |
619.48 |
641.46 |
657.44 |
663.47 |
603.45 |
436.42 |
418.40 |
166.12 |
142.12 |
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16:0 |
10:0 |
593.47 |
615.45 |
631.42 |
637.46 |
577.43 |
410.40 |
392.39 |
196.17 |
172.17 |
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17:0 |
10:0 |
607.48 |
629.46 |
645.44 |
651.47 |
591.45 |
424.42 |
406.40 |
196.17 |
172.17 |
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18:0 |
10:0 |
621.50 |
643.48 |
659.45 |
665.49 |
605.47 |
438.43 |
420.42 |
196.17 |
172.17 |
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19:0 |
10:0 |
635.51 |
657.49 |
673.47 |
679.50 |
619.48 |
452.45 |
434.44 |
196.17 |
172.17 |
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20:0 |
10:0 |
649.53 |
671.51 |
687.48 |
693.52 |
633.50 |
466.46 |
448.45 |
196.17 |
172.17 |
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16:0 |
10:1 |
591.45 |
613.43 |
629.41 |
635.44 |
575.42 |
408.38 |
390.37 |
194.15 |
170.15 |
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17:0 |
10:1 |
605.47 |
627.45 |
643.42 |
649.46 |
589.43 |
422.40 |
404.39 |
194.15 |
170.15 |
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18:0 |
10:1 |
619.48 |
641.46 |
657.44 |
663.47 |
603.45 |
436.42 |
418.40 |
194.15 |
170.15 |
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19:0 |
10:1 |
633.50 |
655.48 |
671.45 |
677.49 |
617.47 |
450.43 |
432.42 |
194.15 |
170.15 |
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20:0 |
10:1 |
647.51 |
669.49 |
685.47 |
691.50 |
631.48 |
464.45 |
446.44 |
194.15 |
170.15 |
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16:0 |
12:0 |
621.50 |
643.48 |
659.45 |
665.49 |
605.47 |
438.43 |
420.42 |
224.20 |
200.20 |
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17:0 |
12:0 |
635.51 |
657.49 |
673.47 |
679.50 |
619.48 |
452.45 |
434.44 |
224.20 |
200.20 |
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18:0 |
12:0 |
649.53 |
671.51 |
687.48 |
693.52 |
633.50 |
466.46 |
448.45 |
224.20 |
200.20 |
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19:0 |
12:0 |
663.54 |
685.53 |
701.50 |
707.53 |
647.51 |
480.48 |
462.47 |
224.20 |
200.20 |
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20:0 |
12:0 |
677.56 |
699.54 |
715.52 |
721.55 |
661.53 |
494.49 |
476.48 |
224.20 |
200.20 |
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16:0 |
12:1 |
619.48 |
641.46 |
657.44 |
663.47 |
603.45 |
436.42 |
418.40 |
222.19 |
198.19 |
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17:0 |
12:1 |
633.50 |
655.48 |
671.45 |
677.49 |
617.47 |
450.43 |
432.42 |
222.19 |
198.19 |
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18:0 |
12:1 |
647.51 |
669.49 |
685.47 |
691.50 |
631.48 |
464.45 |
446.44 |
222.19 |
198.19 |
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19:0 |
12:1 |
661.53 |
683.51 |
699.48 |
705.52 |
645.50 |
478.46 |
460.45 |
222.19 |
198.19 |
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20:0 |
12:1 |
675.54 |
697.53 |
713.50 |
719.53 |
659.51 |
492.48 |
474.47 |
222.19 |
198.19 |
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16:0 |
12:2 |
617.47 |
639.45 |
655.42 |
661.46 |
601.43 |
434.40 |
416.39 |
220.17 |
196.17 |
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17:0 |
12:2 |
631.48 |
653.46 |
669.44 |
675.47 |
615.45 |
448.42 |
430.40 |
220.17 |
196.17 |
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18:0 |
12:2 |
645.50 |
667.48 |
683.45 |
689.49 |
629.47 |
462.43 |
444.42 |
220.17 |
196.17 |
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19:0 |
12:2 |
659.51 |
681.49 |
697.47 |
703.50 |
643.48 |
476.45 |
458.44 |
220.17 |
196.17 |
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20:0 |
12:2 |
673.53 |
695.51 |
711.48 |
717.52 |
657.50 |
490.46 |
472.45 |
220.17 |
196.17 |
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16:0 |
13:0 |
635.51 |
657.49 |
673.47 |
679.50 |
619.48 |
452.45 |
434.44 |
238.22 |
214.22 |
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17:0 |
13:0 |
649.53 |
671.51 |
687.48 |
693.52 |
633.50 |
466.46 |
448.45 |
238.22 |
214.22 |
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18:0 |
13:0 |
663.54 |
685.53 |
701.50 |
707.53 |
647.51 |
480.48 |
462.47 |
238.22 |
214.22 |
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19:0 |
13:0 |
677.56 |
699.54 |
715.52 |
721.55 |
661.53 |
494.49 |
476.48 |
238.22 |
214.22 |
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20:0 |
13:0 |
691.58 |
713.56 |
729.53 |
735.57 |
675.54 |
508.51 |
490.50 |
238.22 |
214.22 |
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16:0 |
13:1 |
633.50 |
655.48 |
671.45 |
677.49 |
617.47 |
450.43 |
432.42 |
236.20 |
212.20 |
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17:0 |
13:1 |
647.51 |
669.49 |
685.47 |
691.50 |
631.48 |
464.45 |
446.44 |
236.20 |
212.20 |
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18:0 |
13:1 |
661.53 |
683.51 |
699.48 |
705.52 |
645.50 |
478.46 |
460.45 |
236.20 |
212.20 |
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19:0 |
13:1 |
675.54 |
697.53 |
713.50 |
719.53 |
659.51 |
492.48 |
474.47 |
236.20 |
212.20 |
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20:0 |
13:1 |
689.56 |
711.54 |
727.52 |
733.55 |
673.53 |
506.49 |
488.48 |
236.20 |
212.20 |
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16:0 |
13:2 |
631.48 |
653.46 |
669.44 |
675.47 |
615.45 |
448.42 |
430.40 |
234.19 |
210.19 |
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17:0 |
13:2 |
645.50 |
667.48 |
683.45 |
689.49 |
629.47 |
462.43 |
444.42 |
234.19 |
210.19 |
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18:0 |
13:2 |
659.51 |
681.49 |
697.47 |
703.50 |
643.48 |
476.45 |
458.44 |
234.19 |
210.19 |
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19:0 |
13:2 |
673.53 |
695.51 |
711.48 |
717.52 |
657.50 |
490.46 |
472.45 |
234.19 |
210.19 |
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20:0 |
13:2 |
687.54 |
709.53 |
725.50 |
731.53 |
671.51 |
504.48 |
486.47 |
234.19 |
210.19 |
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16:0 |
14:0 |
649.53 |
671.51 |
687.48 |
693.52 |
633.50 |
466.46 |
448.45 |
252.23 |
228.23 |
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17:0 |
14:0 |
663.54 |
685.53 |
701.50 |
707.53 |
647.51 |
480.48 |
462.47 |
252.23 |
228.23 |
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18:0 |
14:0 |
677.56 |
699.54 |
715.52 |
721.55 |
661.53 |
494.49 |
476.48 |
252.23 |
228.23 |
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19:0 |
14:0 |
691.58 |
713.56 |
729.53 |
735.57 |
675.54 |
508.51 |
490.50 |
252.23 |
228.23 |
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20:0 |
14:0 |
705.59 |
727.57 |
743.55 |
749.58 |
689.56 |
522.53 |
504.51 |
252.23 |
228.23 |