Common Name
LM ID
Instrument
Adduct
Submitter
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Structure
Common name
LTE4
LMID
Systematic name
5S-hydroxy-6R-(S-cysteinyl),7E,9E,11Z,14Z-eicosatetraenoic acid
Exact mass
439.2392
m/z
438.2
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)
18
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)
5.43
Amount injected
0.25 ng
DOI for method
Date acquired
March 2025
Submitters
Wheelock/Hagn
Source of standard
Cayman Chemical
LTE4
SCIEX QTRAP 6500 LC-MS/MS System
[M-H]-
Ed Dennis, Oswald Quehenberger, Aaron Armando
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Structure
Common name
LTE4
LMID
Systematic name
5S-hydroxy-6R-(S-cysteinyl),7E,9E,11Z,14Z-eicosatetraenoic acid
Exact mass
439.2392
m/z
438
Adduct
[M-H]-
Charge
-1
Ion source
ESI
Instrument
SCIEX QTRAP 6500 LC-MS/MS System
Resolution
N/A
For high resolution data only
Ion mode
Negative
Collision Energy (CE)
-25
Column
Not Available
Mobile phase A
60/40 Water/Acetonitrile, 0.02% Acetic Acid
Mobile phase B
50/50 Isopropanol/Acetonitrile
Retention time (min)
2.18
Amount injected
10ng
DOI for method
N/A
Date acquired
Submitters
Ed Dennis, Oswald Quehenberger, Aaron Armando
Source of standard
Cayman Chemical
LTE4
Thermo Scientific Orbitrap Exploris 240
[M-H]-
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
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Structure
Common name
LTE4
LMID
Systematic name
5S-hydroxy-6R-(S-cysteinyl),7E,9E,11Z,14Z-eicosatetraenoic acid
Exact mass
439.2392
m/z
438.232
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)
20,30,40
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)
2.39
Amount injected
25 pmol
DOI for method
N/A
Date acquired
March 2025
Submitters
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
Source of standard
Cayman
LTE4
Thermo Scientific Orbitrap Exploris 240
[M+H]+
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
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Structure
Common name
LTE4
LMID
Systematic name
5S-hydroxy-6R-(S-cysteinyl),7E,9E,11Z,14Z-eicosatetraenoic acid
Exact mass
439.2392
m/z
440.2465
Adduct
[M+H]+
Charge
1
Ion source
HESI
Instrument
Thermo Scientific Orbitrap Exploris 240
Resolution
30000
For high resolution data only
Ion mode
Positive
Collision Energy (CE)
12,22,32
Column
Accucore C30 150 x 2.2
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)
2.38
Amount injected
12.5 pmol
DOI for method
N/A
Date acquired
March 2025
Submitters
Fedorova Lab (LMAI) - Gabriele Lombardi Bendoula
Source of standard
Cayman