Blood Plasma Lipid Assignment

Part 1:
Double Bond and DB Influenced Signals

Comments are highly welcome: Wieland Willker

This table is ©. It is taken from:

W. Willker and Dieter Leibfritz
Magn. Reson. Chem. 36, 79 - 84 (1998)
"Assignment of Mono- and Polyunsaturated Fatty Acids in Lipids of Tissue and Bodyfluids."
The following table is revised, corrected and expanded.


The Double Bond Signals
Fatty Acid 13C shift/ppm
18:1
(n-9)
130.29 (C10) 129.96 (C9)
18:2
(n-6)
130.47 (C13) 130.24 (C9) 128.41 (C10) 128.22 (C12)
18:3
(n-3)
132.23 (C16) 130.54 (C9) 128.602 128.594 128.13 (C10) 127.50 (C15)
20:3
(n-6)
130.66 (C15) 130.41 128.62 128.52 128.22 128.01 (C14)
20:4
(n-6)
130.71 (C15) 129.29 (C6) 129.02 (C5) 128.87 128.58 128.34 128.09 127.83 (C14)
20:5
(n-3)
132.92 (C18) 129.31 (C6) 129.11 (C5) 128.84 128.53 128.53 128.418 128.404 128.19 127.35 (C17)
22:6 (n-3) 132.26 (C20) 129.71 (C5) 128.82 128.63 128.55 128.55 128.328 128.321 128.23 128.14 127.94 (C4) 127.30 (C19)


The Double Bond Influenced Signals
Fatty Acid Signal 1H/13C shift/ppm
18:1(n-9) D-1 (H8,11) 2.02/27.45
Fa (g-chain) 2.31/34.37
Fa (b-chain) 2.33/34.51
Fb 1.61/25.18
Fw 0.88/14,17
18:2(n-6) D-CH2-D 2.78/25.93
D-1 (H8,14) 2.06/27.50
Fa (g-chain) 2.32/34.41
Fa (b-chain) 2.34/34.54
Fb 1.61/25.23+25.20
Fw-3 (D-2) H15 1.30/31.85
Fw (g-chain) 0.885/14.17
Fw (b-chain) 0.897/14.20
18:3(n-3) D-CH2-D 2.82/25.96+25.86
D-1 (H8) 2.069/27.54
Fa 2.32/34.44
Fb 1.63/25.29
Fw-1 (D-1) 2.088/20.88
Fw (D-2) 0.98/14.42
20:3(n-6) D-1 (H7,16) 2.068/27.559+2.074/27.491
D-CH2-D 2.82/25.97
Fa 2.32/34.41
Fb 1.63/25.27
Fw 0.901/14.21
20:4(n-6) D-CH2-D 2.85+2.82(2*) / 25.90+25.884+25.875
D-1 (H16) 2.06/27.48
D-1 (H4) 2.13/26.77
Fa (g-chain) 2.31/34.35
Fa (b-chain) 2.36/33.93
Fb (g-chain) 1.60/25.15
Fb (b-chain) 1.70/25.08
Fw (g-chain) 0.882/14.14
Fw (b-chain) 0.894/14.16
20:5(n-3) D-CH2-D 2.854/25.911+25.907 / 2.822/25.897 / 2.820/25.811
Fa 2.32/33.82
Fb 1.70/25.12
D-1 (H4) 2.134/26.87
Fw-1 (D-1) 2.083/20.82
Fw 0.98/14.37
22:6(n-3) D-CH2-D 2.86+2.82 / 25.89+25.88(2*)+25.84+25.78
Fb (D-1) 2.40/22.85
Fw-1 (D-1) 2.08/20.79
Fw (D-2) 0.978/14.36
Fa (g-chain) 2.31/34.35
Fa (b-chain) 2.41/34.33
Fb (g-chain) 1.60/25.13
Fw 0.881/14.18