|
Wm. Craig Byrdwell, phd |
|
Taking Lipid Analysis into the 21st Century |
|
For a conveniently printable two-page .pdf version of this mass list, click HERE |
|
c = cis double bond, t = trans d.b., n– refers to the first double bond position, from the end of the fatty acid chain. The above list includes only the most common fatty acids. · A more complete list of fatty acids, according to their trivial names, may be found at : http://www.analyticaldivision.org · Also see a full list of saturated fatty acid names on Wikipedia: |
|
Calculated monoisotopic masses of Fatty Acids and Triacylglycerols 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:
|
|
© 2005-2010 The figures and tables on this website are copyrighted in 2005-2010 by William Craig Byrdwell and Byrdwell.com. Please reference
|
|
© 2005-2010 The figures and tables on this website are copyrighted in 2005-2010 by William Craig Byrdwell and Byrdwell.com. Please reference
|
|
Fatty Acids and Related Masses |
|||||||||||||||
|
|
|
|
|
|
Pure |
Pure |
Pure |
Pure |
Fatty Acid |
||||||
|
Systematic Fatty Acid Name |
Common Fatty Acid Name |
Abbrev. |
|
Fatty Acid Mass |
[RCOO+58]+ |
[RCO]+ |
[RCOO]– |
Triglyceride |
Triglyceride |
Diglyceride |
Diglyceride |
Methyl Ester |
|||
|
|
|
|
C |
|
U |
ECN |
|
|
|
(– mode) |
|
Nominal |
|
Nominal |
|
|
Butanoic |
Butyric |
Bu |
4 |
: |
0 |
4 |
88.052 |
145.09 |
71.05 |
87.045 |
302.17 |
302 |
215.13 |
215 |
102.068 |
|
Pentanoic |
Valeric |
V |
5 |
: |
0 |
5 |
102.068 |
159.102 |
85.065 |
101.060 |
344.22 |
344 |
243.16 |
243 |
116.084 |
|
Hexanoic |
Caproic |
Co |
6 |
: |
0 |
6 |
116.084 |
173.118 |
99.081 |
115.076 |
386.27 |
386 |
271.19 |
271 |
130.099 |
|
Heptanoic |
Enanthic |
En |
7 |
: |
0 |
7 |
130.099 |
187.133 |
113.097 |
129.092 |
428.31 |
428 |
299.22 |
299 |
144.115 |
|
Octanoic |
Caprylic |
Cy |
8 |
: |
0 |
8 |
144.115 |
201.149 |
127.112 |
143.107 |
470.36 |
470 |
327.25 |
327 |
158.131 |
|
Nonanoic |
Pelargonic |
|
9 |
: |
0 |
9 |
158.131 |
215.165 |
141.128 |
157.123 |
512.41 |
512 |
355.28 |
355 |
172.146 |
|
Decanoic |
Capric |
Ca |
10 |
: |
0 |
10 |
172.146 |
229.180 |
155.144 |
171.139 |
554.45 |
554 |
383.32 |
383 |
186.162 |
|
Hendecanoic |
Undecylic |
|
11 |
: |
0 |
11 |
186.162 |
243.196 |
169.159 |
185.154 |
596.50 |
596 |
411.35 |
411 |
200.178 |
|
Dodecanoic |
Lauric |
La |
12 |
: |
0 |
12 |
200.178 |
257.212 |
183.175 |
199.170 |
638.55 |
638 |
439.38 |
439 |
214.193 |
|
Tridecanoic |
Tridecylic |
|
13 |
: |
0 |
13 |
214.193 |
271.227 |
197.191 |
213.185 |
680.60 |
680 |
467.41 |
467 |
228.209 |
|
Tetradecanoic |
Myristic |
M |
14 |
: |
0 |
14 |
228.209 |
285.243 |
211.206 |
227.201 |
722.64 |
722 |
495.44 |
495 |
242.225 |
|
Pentadecanoic |
Pentadecylic |
|
15 |
: |
0 |
15 |
242.225 |
299.259 |
225.222 |
241.217 |
764.69 |
764 |
523.47 |
523 |
256.240 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hexadecanoic |
Palmitic |
P |
16 |
: |
0 |
16 |
256.240 |
313.274 |
239.237 |
255.232 |
806.74 |
806 |
551.50 |
551 |
270.256 |
|
c-9-Hexadecenoic |
Palmitoleic (n-7) |
Po |
16 |
: |
1 |
14 |
254.225 |
311.259 |
237.222 |
253.217 |
800.69 |
800 |
547.47 |
547 |
268.240 |
|
t-9-Hexadecenoic |
Palmitelaidic (n-7) |
Pe |
16 |
: |
1 |
14 |
254.225 |
311.259 |
237.222 |
253.217 |
800.69 |
800 |
547.47 |
547 |
268.240 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Heptadecanoic |
Margaric |
|
17 |
: |
0 |
17 |
270.256 |
327.290 |
253.253 |
269.248 |
848.78 |
848 |
579.54 |
579 |
284.272 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Octadecanoic |
Stearic |
S |
18 |
: |
0 |
18 |
284.272 |
341.306 |
267.269 |
283.264 |
890.83 |
890 |
607.57 |
607 |
298.287 |
|
c-9-Octadecenoic |
Oleic (n-9) |
O |
18 |
: |
1 |
16 |
282.256 |
339.290 |
265.253 |
281.248 |
884.78 |
884 |
603.54 |
603 |
296.272 |
|
t-9-Octadecenoic |
Elaidic (n-9) |
El |
18 |
: |
1 |
16 |
282.256 |
339.290 |
265.253 |
281.248 |
884.78 |
884 |
603.54 |
603 |
296.272 |
|
c-9,12-Octadecadienoic |
Linoleic (w-6) |
L |
18 |
: |
2 |
14 |
280.240 |
337.274 |
263.237 |
279.232 |
878.74 |
878 |
599.50 |
599 |
294.256 |
|
c-9,12,15-Octadecatrienoic |
a-Linolenic (w-3) |
Ln |
18 |
: |
3 |
12 |
278.225 |
335.259 |
261.222 |
277.217 |
872.69 |
872 |
595.47 |
595 |
292.240 |
|
c-6,9,12-Octadecatrienoic |
g-Linolenic (w-6) = GLA |
g-Ln |
18 |
: |
3 |
12 |
278.225 |
335.259 |
261.222 |
277.217 |
872.69 |
872 |
595.47 |
595 |
292.240 |
|
c-6,9,12,15-Octadecatetraenoic |
Stearidonic (w-3) |
St |
18 |
: |
4 |
10 |
276.209 |
333.243 |
259.206 |
275.201 |
866.64 |
866 |
591.44 |
591 |
290.225 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nonadecanoic |
Nonadecylic |
|
19 |
: |
0 |
19 |
298.287 |
355.321 |
281.284 |
297.279 |
932.88 |
932 |
635.60 |
635 |
312.303 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Eicosanoic |
Arachidic |
A |
20 |
: |
0 |
20 |
312.303 |
369.337 |
295.300 |
311.295 |
974.92 |
974 |
663.63 |
663 |
326.318 |
|
c-9-Eicosenoic |
Gadoleic (n-11) |
G |
20 |
: |
1 |
18 |
310.287 |
367.321 |
293.284 |
309.279 |
968.88 |
968 |
659.60 |
659 |
324.303 |
|
c-11-Eicosenoic |
Gondoic (n-9) |
Go |
20 |
: |
1 |
18 |
310.287 |
367.321 |
293.284 |
309.279 |
968.88 |
968 |
659.60 |
659 |
324.303 |
|
c-11,14-Eicosadienoic |
DihomoLinoleic (w-6) |
C20:2 |
20 |
: |
2 |
16 |
308.272 |
365.306 |
291.269 |
307.264 |
962.83 |
962 |
655.57 |
655 |
322.287 |
|
c-11,14,17-Eicosatrienoic |
DihomoLinolenic (w-3) = ETA |
C20:3 |
20 |
: |
3 |
14 |
306.256 |
363.290 |
289.253 |
305.248 |
956.78 |
956 |
651.54 |
651 |
320.272 |
|
c-8,11,14-Eicosatrienoic |
DihomoGammaLinolenic (w-6) |
C20:3 |
20 |
: |
3 |
14 |
306.256 |
363.290 |
289.253 |
305.248 |
956.78 |
956 |
651.54 |
651 |
320.272 |
|
c-5,8,11-Eicosatrienoic |
Mead Acid |
C20:3 |
20 |
: |
3 |
14 |
306.256 |
363.290 |
289.253 |
305.248 |
956.78 |
956 |
651.54 |
651 |
320.272 |
|
c-5,8,11,14-Eicosatetraenoic |
Arachidonic (w-6) |
Ao |
20 |
: |
4 |
12 |
304.240 |
361.274 |
287.237 |
303.232 |
950.74 |
950 |
647.50 |
647 |
318.256 |
|
c-8,11,14,17-Eicosatetraenoic |
Eicosatetraenoic (w-3) |
C20:4 |
20 |
: |
4 |
12 |
304.240 |
361.274 |
287.237 |
303.232 |
950.74 |
950 |
647.50 |
647 |
318.256 |
|
c-5,8,11,14,17-EicosaPentaenoic |
EPA (w-3) |
Ep |
20 |
: |
5 |
10 |
302.225 |
359.259 |
285.222 |
301.217 |
944.69 |
944 |
643.47 |
643 |
316.240 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Heneicosanoic |
Heneicosylic |
|
21 |
: |
0 |
21 |
326.318 |
383.353 |
309.316 |
325.311 |
1016.97 |
1016 |
691.66 |
691 |
340.334 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Docosanoic |
Behenic |
B |
22 |
: |
0 |
22 |
340.334 |
397.368 |
323.331 |
339.326 |
1059.02 |
1058 |
719.69 |
719 |
354.350 |
|
c-13-Docosenoic |
Erucic (n-9) |
E |
22 |
: |
1 |
20 |
338.318 |
395.353 |
321.316 |
337.311 |
1052.97 |
1052 |
715.66 |
715 |
352.334 |
|
c-13,16-Docosadienoic |
Docosadienoic (w-6) |
C22:2 |
22 |
: |
2 |
18 |
336.303 |
393.337 |
319.300 |
335.295 |
1046.92 |
1046 |
711.63 |
711 |
350.318 |
|
c-5,13,16-Docosatrienoic |
Eranthic (w-6) |
C22:3 |
22 |
: |
3 |
16 |
334.287 |
391.321 |
317.284 |
333.279 |
1040.88 |
1040 |
707.60 |
707 |
348.303 |
|
c-7,10,13,16-Docosatetraenoic |
Adrenic (w-6) |
C22:4 |
22 |
: |
4 |
14 |
332.272 |
389.306 |
315.269 |
331.264 |
1034.83 |
1034 |
703.57 |
703 |
346.287 |
|
c-7,10,13,16,19-DocosaPentaenoic |
DPA (w-3) |
Dp |
22 |
: |
5 |
12 |
330.256 |
387.290 |
313.253 |
329.248 |
1028.78 |
1028 |
699.54 |
699 |
344.272 |
|
c-4,7,10,13,16,19-DocosaHexaenoic |
DHA (w-3) |
Dh |
22 |
: |
6 |
10 |
328.240 |
385.274 |
311.237 |
327.232 |
1022.74 |
1022 |
695.50 |
695 |
342.256 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Tricosanoic |
Tricosylic |
C23:0 |
23 |
: |
0 |
23 |
354.350 |
411.384 |
337.347 |
353.342 |
1101.06 |
1101 |
747.72 |
747 |
368.365 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Tetracosanoic |
Lignoceric |
Lg |
24 |
: |
0 |
24 |
368.365 |
425.399 |
351.363 |
367.358 |
1143.11 |
1143 |
775.75 |
775 |
382.381 |
|
c-15-Tetracosenoic |
Nervonic (n-9) |
N |
24 |
: |
1 |
22 |
366.350 |
423.384 |
349.347 |
365.342 |
1137.06 |
1136 |
771.72 |
771 |
380.365 |
|
c-15,18-Tetracosadienoic |
Tetracosadienoic (w-6) |
C24:2 |
24 |
: |
2 |
20 |
364.334 |
421.368 |
347.331 |
363.326 |
1131.02 |
1130 |
767.69 |
767 |
378.350 |
|
c-Tetracosatrienoic |
Tetracosatrienylic |
C24:3 |
24 |
: |
3 |
18 |
362.318 |
419.353 |
345.316 |
361.311 |
1124.97 |
1124 |
763.66 |
763 |
376.334 |
|
c-Tetracosatetraenoic |
Tetracosatetraenylic |
C24:4 |
24 |
: |
4 |
16 |
360.303 |
417.337 |
343.300 |
359.295 |
1118.92 |
1118 |
759.63 |
759 |
374.318 |
|
c-Tetracosapentaenoic |
Tetracosapentaenylic |
C24:5 |
24 |
: |
5 |
14 |
358.287 |
415.321 |
341.284 |
357.279 |
1112.88 |
1112 |
755.60 |
755 |
372.303 |
|
c-6,9,12,15,18,21-Tetracosahexaenoic |
Tetracosahexaenylic (w-3) |
C24:6 |
24 |
: |
6 |
12 |
356.272 |
413.306 |
339.269 |
355.264 |
1106.83 |
1106 |
751.57 |
751 |
370.287 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pentacosanoic |
Pentacosylic |
C25:0 |
25 |
: |
0 |
25 |
382.381 |
439.415 |
365.378 |
381.373 |
1185.16 |
1185 |
|||