M/Z: 271.2331

Hit 2 annotations: N-LAUROYLSARCOSINE_[M-H2O+NH4]+; 11-Oxohexadecanoic acid_[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 4 Reference Ions Near m/z 271.2331

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000006169 Reliable	271.2382	271.238 ~ 271.2385 MzDiff: `2.0 ppm`	Dihomo-gamma-linolenic acid (BioDeep_00000001308) Formula: C20H34O2 (306.2559)	12.28 (100%)	Rattus norvegicus [UBERON:0004358] caput epididymis
MSI_000052723 Reliable	271.2277	271.2272 ~ 271.228 MzDiff: `3.3 ppm`	11-Oxohexadecanoic acid (BioDeep_00000021389) Formula: C16H30O3 (270.2195)	9.29 (100%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000038451 Unreliable	271.224	271.224 ~ 271.224 MzDiff: `none`	(S)-10,16-Dihydroxyhexadecanoic acid (BioDeep_00000006707) Formula: C16H32O4 (288.23)	2.03 (100%)	Posidonia oceanica [PO:0005059] root endodermis
MSI_000055784 Unreliable	271.2287	271.2287 ~ 271.2287 MzDiff: `none`	11-Oxohexadecanoic acid (BioDeep_00000021389) Formula: C16H30O3 (270.2195)	0.21 (100%)	Homo sapiens [UBERON:0007779] transudate

Found 6 Sample Hits

Metabolite	Species	Sample
N-LAUROYLSARCOSINE Formula: C15H29NO3 (271.2147) Adducts: [M-H2O+NH4]+ (Ppm: 18)	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).
11-Oxohexadecanoic acid Formula: C16H30O3 (270.2195) Adducts: [M+H]+ (Ppm: 5.3)	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).
11-Oxohexadecanoic acid Formula: C16H30O3 (270.2195) Adducts: [M+H]+ (Ppm: 4.2)	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).
11-Oxohexadecanoic acid Formula: C16H30O3 (270.2195) Adducts: [M+H]+ (Ppm: 5.3)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description
11-Oxohexadecanoic acid Formula: C16H30O3 (270.2195) Adducts: [M+H]+ (Ppm: 6.4)	Homo sapiens (esophagus)	LNTO22_1_5 Resolution: 75μm, 135x94 Description
11-Oxohexadecanoic acid Formula: C16H30O3 (270.2195) Adducts: [M+H]+ (Ppm: 7.9)	Homo sapiens (esophagus)	LNTO22_2_2 Resolution: 75μm, 135x94 Description