|
Wm. Craig Byrdwell, phd |
|
Resources for Lipid Analysis in the 21st Century |
|
Copyright © 2005-2011 Byrdwell.com
The figures and tables on this website are copyrighted in 2005-2011 by William Craig Byrdwell. If you use these tables please reference www.Sphingomyelin.com |
|
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:
|
|
Dihydrosphingomyelin (DSM) species often represent 5% to 20% of sphingolipids, but often are not identified or are under-reported. The human eye lens is the only tissue reported to date in which Dihydrosphingomyelin species are the most abundant class of phosphosphingolipid. The most common Dihydrosphingomyelin molecular species in most tissue types have a d18:0 Sphinganine Long-Chain Base. Those molecular species are given on this page. Dihydrosphingomyelin Long-Chain Bases (LCBs) other than d18:0, which are abundant in some samples, are given on other DSM pages listed on the Navigation Menu, and in the Master List. |
|
*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. |
|
Calculated Monoisotopic Masses for Dihydrosphingomyelin Species with an 18:0 Long-Chain Base |
|||||||||
|
18:0 LCB |
|||||||||
|
|
+ESI |
|
-ESI* |
-ESI/-APCI |
+APCI |
||||
|
CN:d.b. |
[M+H]+ |
[M+Na]+ |
[M+K]+ |
[M +45]- formate adduct |
[M-15]- |
[Cer-H2O+H]+ |
[Cer-2H2O+H]+ |
[FA (L)]+ |
[FA (S)]+ |
|
6:0 |
565.43 |
587.42 |
603.39 |
609.42 |
549.40 |
382.37 |
364.36 |
140.11 |
116.11 |
|
6:1 |
563.42 |
585.40 |
601.37 |
607.41 |
547.39 |
380.35 |
362.34 |
138.09 |
114.09 |
|
8:0 |
593.47 |
615.45 |
631.42 |
637.46 |
577.43 |
410.40 |
392.39 |
168.14 |
144.14 |
|
8:1 |
591.45 |
613.43 |
629.41 |
635.44 |
575.42 |
408.38 |
390.37 |
166.12 |
142.12 |
|
10:0 |
621.50 |
643.48 |
659.45 |
665.49 |
605.47 |
438.43 |
420.42 |
196.17 |
172.17 |
|
10:1 |
619.48 |
641.46 |
657.44 |
663.47 |
603.45 |
436.42 |
418.40 |
194.15 |
170.15 |
|
12:0 |
649.53 |
671.51 |
687.48 |
693.52 |
633.50 |
466.46 |
448.45 |
224.20 |
200.20 |
|
12:1 |
647.51 |
669.49 |
685.47 |
691.50 |
631.48 |
464.45 |
446.44 |
222.19 |
198.19 |
|
12:2 |
645.50 |
667.48 |
683.45 |
689.49 |
629.47 |
462.43 |
444.42 |
220.17 |
196.17 |
|
13:0 |
663.54 |
685.53 |
701.50 |
707.53 |
647.51 |
480.48 |
462.47 |
238.22 |
214.22 |
|
13:1 |
661.53 |
683.51 |
699.48 |
705.52 |
645.50 |
478.46 |
460.45 |
236.20 |
212.20 |
|
13:2 |
659.51 |
681.49 |
697.47 |
703.50 |
643.48 |
476.45 |
458.44 |
234.19 |
210.19 |
|
14:0 |
677.56 |
699.54 |
715.52 |
721.55 |
661.53 |
494.49 |
476.48 |
252.23 |
228.23 |
|
14:1 |
675.54 |
697.53 |
713.50 |
719.53 |
659.51 |
492.48 |
474.47 |
250.22 |
226.22 |
|
14:2 |
673.53 |
695.51 |
711.48 |
717.52 |
657.50 |
490.46 |
472.45 |
248.20 |
224.20 |
|
15:0 |
691.58 |
713.56 |
729.53 |
735.57 |
675.54 |
508.51 |
490.50 |
266.25 |
242.25 |
|
15:1 |
689.56 |
711.54 |
727.52 |
733.55 |
673.53 |
506.49 |
488.48 |
264.23 |
240.23 |
|
15:2 |
687.54 |
709.53 |
725.50 |
731.53 |
671.51 |
504.48 |
486.47 |
262.22 |
238.22 |
|
16:0 |
705.59 |
727.57 |
743.55 |
749.58 |
689.56 |
522.53 |
504.51 |
280.26 |
256.26 |
|
16:1 |
703.58 |
725.56 |
741.53 |
747.57 |
687.54 |
520.51 |
502.50 |
278.25 |
254.25 |
|
16:2 |
701.56 |
723.54 |
739.52 |
745.55 |
685.53 |
518.49 |
500.48 |
276.23 |
252.23 |
|
17:0 |
719.61 |
741.59 |
757.56 |
763.60 |
703.58 |
536.54 |
518.53 |
294.28 |
270.28 |
|
17:1 |
717.59 |
739.57 |
755.55 |
761.58 |
701.56 |
534.53 |
516.51 |
292.26 |
268.26 |
|
17:2 |
715.58 |
737.56 |
753.53 |
759.57 |
699.54 |
532.51 |
514.50 |
290.25 |
266.25 |
|
18:0 |
733.62 |
755.60 |
771.58 |
777.61 |
717.59 |
550.56 |
532.55 |
308.30 |
284.30 |
|
18:1 |
731.61 |
753.59 |
769.56 |
775.60 |
715.58 |
548.54 |
530.53 |
306.28 |
282.28 |
|
18:2 |
729.59 |
751.57 |
767.55 |
773.58 |
713.56 |
546.53 |
528.51 |
304.26 |
280.26 |
|
18:3 |
727.58 |
749.56 |
765.53 |
771.57 |
711.54 |
544.51 |
526.50 |
302.25 |
278.25 |
|
19:0 |
747.64 |
769.62 |
785.59 |
791.63 |
731.61 |
564.57 |
546.56 |
322.31 |
298.31 |
|
19:1 |
745.62 |
767.60 |
783.58 |
789.61 |
729.59 |
562.56 |
544.55 |
320.30 |
296.30 |
|
19:2 |
743.61 |
765.59 |
781.56 |
787.60 |
727.58 |
560.54 |
542.53 |
318.28 |
294.28 |
|
20:0 |
761.65 |
783.64 |
799.61 |
805.64 |
745.62 |
578.59 |
560.58 |
336.33 |
312.33 |
|
20:1 |
759.64 |
781.62 |
797.59 |
803.63 |
743.61 |
576.57 |
558.56 |
334.31 |
310.31 |
|
20:2 |
757.62 |
779.60 |
795.58 |
801.61 |
741.59 |
574.56 |
556.55 |
332.30 |
308.30 |
|
21:0 |
775.67 |
797.65 |
813.63 |
819.66 |
759.64 |
592.60 |
574.59 |
350.34 |
326.34 |
|
21:1 |
773.65 |
795.64 |
811.61 |
817.64 |
757.62 |
590.59 |
572.58 |
348.33 |
324.33 |
|
21:2 |
771.64 |
793.62 |
809.59 |
815.63 |
755.61 |
588.57 |
570.56 |
346.31 |
322.31 |
|
22:0 |
789.68 |
811.67 |
827.64 |
833.67 |
773.65 |
606.62 |
588.61 |
364.36 |
340.36 |
|
22:1 |
787.67 |
809.65 |
825.63 |
831.66 |
771.64 |
604.60 |
586.59 |
362.34 |
338.34 |
|
22:2 |
785.65 |
807.64 |
823.61 |
829.64 |
769.62 |
602.59 |
584.58 |
360.33 |
336.33 |
|
23:0 |
803.70 |
825.68 |
841.66 |
847.69 |
787.67 |
620.63 |
602.62 |
378.37 |
354.37 |
|
23:1 |
801.68 |
823.67 |
839.64 |
845.67 |
785.65 |
618.62 |
600.61 |
376.36 |
352.36 |
|
23:2 |
799.67 |
821.65 |
837.63 |
843.66 |
783.64 |
616.60 |
598.59 |
374.34 |
350.34 |
|
24:0 |
817.72 |
839.70 |
855.67 |
861.71 |
801.68 |
634.65 |
616.64 |
392.39 |
368.39 |
|
24:1 |
815.70 |
837.68 |
853.66 |
859.69 |
799.67 |
632.63 |
614.62 |
390.37 |
366.37 |
|
24:2 |
813.68 |
835.67 |
851.64 |
857.67 |
797.65 |
630.62 |
612.61 |
388.36 |
364.36 |
|
25:0 |
831.73 |
853.71 |
869.69 |
875.72 |
815.70 |
648.67 |
630.66 |
406.40 |
382.40 |
|
25:1 |
829.72 |
851.70 |
867.67 |
873.71 |
813.68 |
646.65 |
628.64 |
404.39 |
380.39 |
|
25:2 |
827.70 |
849.68 |
865.66 |
871.69 |
811.67 |
644.63 |
626.62 |
402.37 |
378.37 |
|
26:0 |
845.75 |
867.73 |
883.70 |
889.74 |
829.72 |
662.68 |
644.67 |
420.42 |
396.42 |
|
26:1 |
843.73 |
865.71 |
881.69 |
887.72 |
827.70 |
660.67 |
642.66 |
418.40 |
394.40 |
|
26:2 |
841.72 |
863.70 |
879.67 |
885.71 |
825.68 |
658.65 |
640.64 |
416.39 |
392.39 |