M/Z: 739.4981

Hit 3 annotations: (2e,4s,7r)-7-hydroxy-8-[(2s,4r,5r,7s,9r,10r)-2-[(2s,2'r,3's,5r,5'r)-5'-[(2s,3s,5r,6r)-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-2,3'-dimethyl-[2,2'-bioxolan]-5-yl]-9-(methoxymethyl)-2,4,10-trimethyl-1,6-dioxaspiro[4.5]decan-7-yl]-2,4-dimethyloct-2-enoic acid_[M+H]+; PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z))_[M+NH4]+; PA(18:0/20:4(6E,8Z,11Z,14Z)+=O(5))_[M+H]+

在BioDeep NovoCell知识数据库中，参考离子总共被划分为4个级别。

Confirmed: 这个参考离子已经通过手动审计得到确认和验证。
Reliable: 这个参考离子可能在特定的解剖组织环境中高度保守。
Unreliable: 这个参考离子具有较高的排名价值，但缺乏可重复性。
Unavailable: 由于排名价值低且缺乏可重复性，这个参考离子不应用于注释。

Found 6 Reference Ions Near m/z 739.4981

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000051921 Unreliable	739.5026	739.5026 ~ 739.5026 MzDiff: `none`	PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) (BioDeep_00000105365) Formula: C40H68NO8P (721.4682)	2.38 (100%)	Homo sapiens [UBERON:0001052] rectum
MSI_000021379 Unreliable	739.4901	739.4901 ~ 739.4901 MzDiff: `none`	PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) (BioDeep_00000105365) Formula: C40H68NO8P (721.4682)	1.01 (100%)	Mus musculus [UBERON:0001499] muscle of arm
MSI_000008902 Unreliable	739.4933	739.4933 ~ 739.4933 MzDiff: `none`	(2e,4s,7r)-7-hydroxy-8-[(2s,4r,5r,7s,9r,10r)-2-[(2s,2'r,3's,5r,5'r)-5'-[(2s,3s,5r,6r)-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-2,3'-dimethyl-[2,2'-bioxolan]-5-yl]-9-(methoxymethyl)-2,4,10-trimethyl-1,6-dioxaspiro[4.5]decan-7-yl]-2,4-dimethyloct-2-enoic acid (BioDeep_00002079285) Formula: C41H70O11 (738.4918)	3.21 (100%)	Mus musculus [UBERON:0004645] urinary bladder urothelium
MSI_000000807 Unavailable	739.4933	739.4933 ~ 739.4933 MzDiff: `none`	(2e,4s,7r)-7-hydroxy-8-[(2s,4r,5r,7s,9r,10r)-2-[(2s,2'r,3's,5r,5'r)-5'-[(2s,3s,5r,6r)-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-2,3'-dimethyl-[2,2'-bioxolan]-5-yl]-9-(methoxymethyl)-2,4,10-trimethyl-1,6-dioxaspiro[4.5]decan-7-yl]-2,4-dimethyloct-2-enoic acid (BioDeep_00002079285) Formula: C41H70O11 (738.4918)	-0.61 (100%)	Mus musculus [CL:0000066] epithelial cell
MSI_000030378 Unreliable	739.495	739.495 ~ 739.495 MzDiff: `none`	PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) (BioDeep_00000105365) Formula: C40H68NO8P (721.4682)	1.86 (100%)	Macropus giganteus [UBERON:0003027] cingulate cortex
MSI_000031491 Unreliable	739.495	739.495 ~ 739.495 MzDiff: `none`	PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) (BioDeep_00000105365) Formula: C40H68NO8P (721.4682)	0.59 (100%)	Macropus giganteus [UBERON:0006093] precuneus cortex

Found 8 Sample Hits

Metabolite	Species	Sample
(2e,4s,7r)-7-hydroxy-8-[(2s,4r,5r,7s,9r,10r)-2-[(2s,2'r,3's,5r,5'r)-5'-[(2s,3s,5r,6r)-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-2,3'-dimethyl-[2,2'-bioxolan]-5-yl]-9-(methoxymethyl)-2,4,10-trimethyl-1,6-dioxaspiro[4.5]decan-7-yl]-2,4-dimethyloct-2-enoic acid Formula: C41H70O11 (738.4918) Adducts: [M+H]+ (Ppm: 7.8)	Mus musculus (Urinary bladder)	HR2MSI_mouse_urinary_bladder - S096 Resolution: 10μm, 260x134 Description Mass spectrometry imaging of phospholipids in mouse urinary bladder (imzML dataset) The spatial distribution of phospholipids in a tissue section of mouse urinary bladder was analyzed by MALDI MS imaging at 10 micrometer pixel size with high mass resolution (using an LTQ Orbitrap mass spectrometer). R, ö, mpp A, Guenther S, Schober Y, Schulz O, Takats Z, Kummer W, Spengler B, Histology by mass spectrometry: label-free tissue characterization obtained from high-accuracy bioanalytical imaging. Angew Chem Int Ed Engl, 49(22):3834-8(2010) Fig. S2: Single ion images of compounds shown in Fig. 1A-B : (upper left to lower right) m/z = 743.5482 (unknown), m/z = 741.5307 (SM (16:0), [M+K]+), m/z = 798.5410 (PC (34:1), [M+K]+), m/z = 616.1767 (heme b, M+), m/z = 772.5253 (PC (32:0), [M+K]+). Stability of determined mass values was in the range of +/- 1 ppm over 22 hours of measurement (Fig. S4), with a standard deviation of 0.56 ppm. Accuracy data were obtained during tissue scanning experiments by monitoring the mass signal at nominal mass 798. The internal lock mass function of the Orbitrap instrument was used for automatic calibration during imaging measurements, using the known matrix-related ion signals at m/z = 137.0233, m/z = 444.0925 and m/z = 716.1246.
PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) Formula: C40H68NO8P (721.4682) Adducts: [M+NH4]+ (Ppm: 16.2)	Mus musculus (Left upper arm)	357_l_total ion count Resolution: 50μm, 97x131 Description Diseased
PE-NMe(14:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z)) Formula: C40H68NO8P (721.4682) Adducts: [M+NH4]+ (Ppm: 9.5)	Macropus giganteus (Brain)	170321_kangaroobrain-dan3-pos_maxof50.0_med1 Resolution: 50μm, 81x50 Description Sample information Organism: Macropus giganteus (kangaroo) Organism part: Brain Condition: Wildtype Sample growth conditions: Wild
PA(18:0/20:4(6E,8Z,11Z,14Z)+=O(5)) Formula: C41H71O9P (738.4835) Adducts: [M+H]+ (Ppm: 13.1)	Homo sapiens (esophagus)	LNTO29_16_2 Resolution: 17μm, 95x101 Description
m/z_739.496 Formula: - (n/a) Adducts: (Ppm: )	Homo sapiens (colorectal adenocarcinoma)	80TopL, 50TopR, 70BottomL, 60BottomR-profile Resolution: 17μm, 137x136 Description The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).
PA(18:0/20:4(6E,8Z,11Z,14Z)+=O(5)) Formula: C41H71O9P (738.4835) Adducts: [M+H]+ (Ppm: 12)	Homo sapiens (colorectal adenocarcinoma)	520TopL, 490TopR, 510BottomL, 500BottomR-profile Resolution: 17μm, 147x131 Description The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).
PA(18:0/20:4(6E,8Z,11Z,14Z)+=O(5)) Formula: C41H71O9P (738.4835) Adducts: [M+H]+ (Ppm: 9.8)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description
m/z_739.5007 Formula: - (n/a) Adducts: (Ppm: )	Homo sapiens (esophagus)	LNTO22_1_8 Resolution: 75μm, 69x61 Description