M/Z: 423.3175

Hit 5 annotations: Acetolein_[M+H-H2O]+; 9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine_[M-H2O+NH4]+; 7-Methyl-cholic acid_[M+H]+; (3beta,17alpha,23S)-17,23-Epoxy-3,29-dihydroxy-27-norlanost-8-en-24-one_[M+H-2H2O]+; Calcidiol_[M+Na]+

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 7 Reference Ions Near m/z 423.3175

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000057733 Reliable	423.3182	423.318 ~ 423.3184 MzDiff: `1.6 ppm`	9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine (BioDeep_00000171108) Formula: C24H41NO5 (423.2985)	4.11 (45%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000043451 Reliable	423.3176	423.3171 ~ 423.318 MzDiff: `3.9 ppm`	9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine (BioDeep_00000171108) Formula: C24H41NO5 (423.2985)	4.38 (83%)	Homo sapiens [UBERON:0001043] esophagus
MSI_000047133 Unreliable	423.3184	423.3184 ~ 423.3184 MzDiff: `none`	7-Methyl-cholic acid (BioDeep_00000172548) Formula: C25H42O5 (422.3032)	2.74 (100%)	Homo sapiens [UBERON:0013067] colorectal mucosa
MSI_000047143 Unreliable	423.3269	423.3269 ~ 423.3269 MzDiff: `none`	Magnesium dodecanoate (BioDeep_00000228153) Formula: C24H46MgO4 (422.3246)	2.71 (100%)	Homo sapiens [UBERON:0013067] colorectal mucosa
MSI_000047182 Unreliable	423.3097	423.3097 ~ 423.3097 MzDiff: `none`	N-[1-[[5-(Diaminomethylideneamino)-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]-4-methyl-2-(propanoylamino)pentanamide (BioDeep_00000175554) Formula: C21H40N6O4 (440.3111)	2.62 (100%)	Homo sapiens [UBERON:0013067] colorectal mucosa
MSI_000057929 Unreliable	423.3179	423.3178 ~ 423.318 MzDiff: `1.0 ppm`	Acetolein (BioDeep_00000227995) Formula: C25H44O6 (440.3138)	2.12 (67%)	Homo sapiens [UBERON:0007779] transudate
MSI_000065388 Unreliable	423.3181	423.3181 ~ 423.3181 MzDiff: `none`	9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine (BioDeep_00000171108) Formula: C24H41NO5 (423.2985)	2.35 (100%)	Homo sapiens [UBERON:0001155] colon

Found 25 Sample Hits

Metabolite	Species	Sample
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 14.9)	Homo sapiens (esophagus)	LNTO22_1_4 Resolution: 17μm, 82x80 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 18.5)	Homo sapiens (esophagus)	LNTO29_16_2 Resolution: 17μm, 95x101 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 9.7)	Homo sapiens (esophagus)	TO42T Resolution: 17μm, 69x81 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 17.8)	Homo sapiens (esophagus)	LNTO30_8M_1 Resolution: 17μm, 69x54 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 9.7)	Homo sapiens (esophagus)	TO39T Resolution: 17μm, 69x81 Description
7-Methyl-cholic acid Formula: C25H42O5 (422.3032) Adducts: [M+H]+ (Ppm: 18.7)	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).
7-Methyl-cholic acid Formula: C25H42O5 (422.3032) Adducts: [M+H]+ (Ppm: 13.5)	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
7-Methyl-cholic acid Formula: C25H42O5 (422.3032) Adducts: [M+H]+ (Ppm: 18.7)	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).
(3beta,17alpha,23S)-17,23-Epoxy-3,29-dihydroxy-27-norlanost-8-en-24-one Formula: C29H46O4 (458.3396) Adducts: [M+H-2H2O]+ (Ppm: 13.3)	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).
7-Methyl-cholic acid Formula: C25H42O5 (422.3032) Adducts: [M+H]+ (Ppm: 16.6)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 17.8)	Homo sapiens (esophagus)	LNTO29_16_3 Resolution: 17μm, 108x107 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 10.9)	Homo sapiens (esophagus)	TO40T Resolution: 17μm, 82x74 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.8)	Homo sapiens (esophagus)	TO41T Resolution: 75μm, 69x43 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.3)	Homo sapiens (esophagus)	LNTO30_8M_2 Resolution: 75μm, 108x68 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.5)	Homo sapiens (esophagus)	LNTO30_8M_3 Resolution: 75μm, 69x54 Description
Calcidiol Formula: C27H44O2 (400.3341) Adducts: [M+Na]+ (Ppm: 11.7)	Homo sapiens (esophagus)	LNTO30_8M_4 Resolution: 75μm, 62x48 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.1)	Homo sapiens (esophagus)	LNTO30_8M_5 Resolution: 75μm, 56x54 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 18.5)	Homo sapiens (esophagus)	LNTO30_17_2 Resolution: 75μm, 82x54 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 17.8)	Homo sapiens (esophagus)	LNTO29_18_2 Resolution: 75μm, 62x68 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.3)	Homo sapiens (esophagus)	LNTO30_7_1 Resolution: 75μm, 69x68 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.5)	Homo sapiens (esophagus)	LNTO30_7_2 Resolution: 75μm, 82x68 Description
Acetolein Formula: C25H44O6 (440.3138) Adducts: [M+H-H2O]+ (Ppm: 17.3)	Homo sapiens (colorectal adenocarcinoma)	240TopL, 210TopR, 230BottomL, 220BottomR-centroid Resolution: 50μm, 142x141 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.5)	Homo sapiens (colorectal adenocarcinoma)	200TopL, 170TopR, 190BottomL, 180BottomR-centroid Resolution: 50μm, 132x126 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 9.7)	Homo sapiens (colorectal adenocarcinoma)	160TopL,130TopR,150BottomL,140BottomR-centroid Resolution: 50μm, 142x136 Description
9-(3-Methyl-5-propylfuran-2-yl)nonanoylcarnitine Formula: C24H41NO5 (423.2985) Adducts: [M-H2O+NH4]+ (Ppm: 8.8)	Homo sapiens (colorectal adenocarcinoma)	120TopL, 90TopR, 110BottomL, 100BottomR-centroid Resolution: 50μm, 132x136 Description