M/Z: 253.2542

Hit 1 annotations: Heptadecanoic acid_[M+H-H2O]+

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 1 Reference Ions Near m/z 253.2542

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000043422 Unreliable	253.2539	253.2539 ~ 253.2539 MzDiff: `none`	Heptadecanoic acid (BioDeep_00000018500) Formula: C17H34O2 (270.2559)	1.71 (100%)	Homo sapiens [UBERON:0001043] esophagus

Found 13 Sample Hits

Metabolite	Species	Sample
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6)	Homo sapiens (esophagus)	LNTO22_1_3 Resolution: 75μm, 121x68 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 5.2)	Homo sapiens (esophagus)	LNTO29_16_2 Resolution: 17μm, 95x101 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6.8)	Homo sapiens (esophagus)	LNTO22_1_9 Resolution: 75μm, 89x74 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6.4)	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).
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 4.8)	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).
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 2.1)	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).
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 4)	Homo sapiens (esophagus)	LNTO29_16_3 Resolution: 17μm, 108x107 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 5.6)	Homo sapiens (esophagus)	TO29T Resolution: 75μm, 56x48 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6.4)	Homo sapiens (esophagus)	LNTO22_1_5 Resolution: 75μm, 135x94 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6)	Homo sapiens (esophagus)	LNTO22_1_7 Resolution: 75μm, 69x54 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 6)	Homo sapiens (esophagus)	LNTO22_1_8 Resolution: 75μm, 69x61 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 4.4)	Homo sapiens (colorectal adenocarcinoma)	240TopL, 210TopR, 230BottomL, 220BottomR-centroid Resolution: 50μm, 142x141 Description
Heptadecanoic acid Formula: C17H34O2 (270.2559) Adducts: [M+H-H2O]+ (Ppm: 4.4)	Homo sapiens (colorectal adenocarcinoma)	120TopL, 90TopR, 110BottomL, 100BottomR-centroid Resolution: 50μm, 132x136 Description