M/Z: 499.3588

Hit 4 annotations: Fluocortolone Pivalate_[M+K]+; LysoPE(18:0/0:0)_[M+NH4]+; Pyrohyperforin_[M+H-2H2O]+; (4Z,7Z,10E,12E,16Z)-18-(3-Ethylcycloprop-1-en-1-yl)-14-hydroxyoctadeca-4,7,10,12,16-pentaenoylcarnitine_[M-H2O+NH4]+

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 5 Reference Ions Near m/z 499.3588

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000052757 Reliable	499.3654	499.365 ~ 499.3659 MzDiff: `3.5 ppm`	1-(8Z,11Z,14Z-eicosatrienoyl)-glycero-3-phosphate (BioDeep_00000055000) Formula: C23H41O7P (460.259)	7.64 (83%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000053191 Reliable	499.3635	499.363 ~ 499.3638 MzDiff: `3.1 ppm`	Fluocortolone Pivalate (BioDeep_00000179120) Formula: C27H37FO5 (460.2625)	6.62 (44%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000053302 Unreliable	499.356	499.356 ~ 499.356 MzDiff: `none`	LysoPE(18:0/0:0) (BioDeep_00000004204) Formula: C23H48NO7P (481.3168)	2.7 (100%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000051403 Unreliable	499.3588	499.3588 ~ 499.3588 MzDiff: `none`	LysoPE(18:0/0:0) (BioDeep_00000004204) Formula: C23H48NO7P (481.3168)	(100%)	Mytilus edulis [UBERON:2001856] gill ray
MSI_000055887 Unavailable	499.3654	499.3654 ~ 499.3654 MzDiff: `none`	1-(8Z,11Z,14Z-eicosatrienoyl)-glycero-3-phosphate (BioDeep_00000055000) Formula: C23H41O7P (460.259)	-0.29 (100%)	Homo sapiens [UBERON:0007779] transudate

Found 7 Sample Hits

Metabolite	Species	Sample
Fluocortolone Pivalate Formula: C27H37FO5 (460.2625) Adducts: [M+K]+ (Ppm: 6.9)	Homo sapiens (esophagus)	TO42T Resolution: 17μm, 69x81 Description
LysoPE(18:0/0:0) Formula: C23H48NO7P (481.3168) Adducts: [M+NH4]+ (Ppm: 10.7)	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).
LysoPE(18:0/0:0) Formula: C23H48NO7P (481.3168) Adducts: [M+NH4]+ (Ppm: 16.3)	Mytilus edulis (gill)	20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210 Resolution: 11μm, 305x210 Description single cell layer `class_4` is the gill structure cells, metabolite ion 534.2956 is the top representive ion of this type of cell
LysoPE(18:0/0:0) Formula: C23H48NO7P (481.3168) Adducts: [M+NH4]+ (Ppm: 7.9)	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).
Pyrohyperforin Formula: C35H50O4 (534.3709) Adducts: [M+H-2H2O]+ (Ppm: 11.7)	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).
(4Z,7Z,10E,12E,16Z)-18-(3-Ethylcycloprop-1-en-1-yl)-14-hydroxyoctadeca-4,7,10,12,16-pentaenoylcarnitine Formula: C30H45NO5 (499.3298) Adducts: [M-H2O+NH4]+ (Ppm: 9.2)	Homo sapiens (colorectal adenocarcinoma)	439TopL, 409TopR, 429BottomL, 419BottomR-profile Resolution: 17μm, 157x136 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).
LysoPE(18:0/0:0) Formula: C23H48NO7P (481.3168) Adducts: [M+NH4]+ (Ppm: 8.1)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description