Common Name
LM ID
Instrument
Adduct
Submitter
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
Waters Xevo TQ-XS Triple Quadrupole
Resolution
N/A
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
15
Column
Waters Acquity Premier BEH C18 with VanGuard FIT, 130 Å, 1.7 µm, 2.1 x 100 mm
Mobile phase A
Milli-Q H2O + 0.1 % (v/v) acetic acid
Mobile phase B
ACN:IPA (90:10)
Retention time (min)
10.35
Amount injected
0.25 ng
DOI for method
Date acquired
March 2025
Submitters
Wheelock/Hagn
Source of standard
Cayman Chemical
19(20)-EpDPE
Thermo Scientific Orbitrap Exploris 240
[M-H]-
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2279
Adduct
[M-H]-
Charge
-1
Ion source
HESI
Instrument
Thermo Scientific Orbitrap Exploris 240
Resolution
30000
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
30,40,50
Column
Accucore C30 150 x 2.1
Mobile phase A
Acetonitrile:water 50/50 v/v 5mM AmFm + 0.1% FA
Mobile phase B
Isopropanol:Acetonitrile:water 85/10/5 v/v 5mM AmFm + 0.1% FA
Retention time (min)
6.81
Amount injected
25 pmol
DOI for method
N/A
Date acquired
March 2025
Submitters
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
Source of standard
Cayman
19(20)-EpDPE
Thermo Scientific Q Exactive Focus Orbitrap LC-MS/MS System
[M-H]-
Jean-Marie Galano.Ángel Sánchez Illana.Thierry Durand
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2278
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
Thermo Scientific Q Exactive Focus Orbitrap LC-MS/MS System
Resolution
17000
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
30eV
Column
Kinetex EVO C18 (100 × 2.1 mm column 1.7 µm)
Mobile phase A
0.3 mL/min binary gradient using H2O (0.1% HCOOH)
Mobile phase B
CH3CN:CH3OH 8:2, (0.1% HCOOH)
Retention time (min)
17.98
Amount injected
5μl
DOI for method
Date acquired
October 2023
Submitters
Jean-Marie Galano.Ángel Sánchez Illana.Thierry Durand
Source of standard
Synthesized in-house
19(20)-EpDPE
Thermo Fisher Orbitrap ID-X Tribrid
[M-H]-
Jean-Marie Galano.Ángel Sánchez Illana.Thierry Durand
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
361.2384
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
Thermo Fisher Orbitrap ID-X Tribrid
Resolution
60000
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
stepped HCD collision energy 20–40–60%
Column
N/A
Mobile phase A
N/A
Mobile phase B
N/A
Retention time (min)
N/A
Amount injected
10 µL
DOI for method
Date acquired
October 2023
Submitters
Jean-Marie Galano.Ángel Sánchez Illana.Thierry Durand
Source of standard
Cayman
19(20)-EpDPE
Sciex 5500, QqQ
[M-H]-
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
Sciex 5500, QqQ
Resolution
N/A
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
-15 - -25
Column
Zorbax Eclipse Plus C18 reversed phase column (2.1 x 150 mm, particle size 1.8 mm; Agilent, Waldbronn, Germany)
Mobile phase A
95/5 (v/v) 0.1% acetic acid (aq)/Eluent B
Mobile phase B
800/150/1 (v/v/v) acetonitrile/methanol/acetic acid
Retention time (min)
22.81
Amount injected
~ 0.3 ng
DOI for method
Date acquired
April 2025
Submitters
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
Source of standard
Cayman Chemical
19(20)-EpDPE
Sciex 6500+/QTrap
[M-H]-
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
Sciex 6500+/QTrap
Resolution
N/A
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
-15 - -25
Column
Zorbax Eclipse Plus C18 reversed phase column (2.1 x 150 mm, particle size 1.8 mm; Agilent, Waldbronn, Germany)
Mobile phase A
95/5 (v/v) 0.1% acetic acid (aq)/Eluent B
Mobile phase B
800/150/1 (v/v/v) acetonitrile/methanol/acetic acid
Retention time (min)
22.81
Amount injected
~ 0.3 ng
DOI for method
Date acquired
March 2025
Submitters
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
Source of standard
Cayman Chemical
19(20)-EpDPE
Thermo QExactive HF
[M-H]-
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
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Structure
Common name
19(20)-EpDPE
LMID
Systematic name
(+/-)-19(20)-epoxy-4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid
Exact mass
344.2351
m/z
343.2
Adduct
[M-H]-
Charge
-1
Ion source
HESI
Instrument
Thermo QExactive HF
Resolution
Not Available
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
30
Column
Zorbax Eclipse Plus C18 reversed phase column (2.1 x 150 mm, particle size 1.8 mm; Agilent, Waldbronn, Germany)
Mobile phase A
95/5 (v/v) 0.1% acetic acid (aq)/Eluent B
Mobile phase B
800/150/1 (v/v/v) acetonitrile/methanol/acetic acid
Retention time (min)
22.81
Amount injected
~ 0.3 ng
DOI for method
Date acquired
February 2025
Submitters
N.Kampschulte, M.A.Chromik, R.Kirchhoff, A.Löwen, K.Mosel, K.Plitzko, L.Scholz, L.Wende, M.Wiebel, N.H.Schebb
Source of standard
Cayman Chemical