M/Z: 638.3831

Hit 1 annotations: Ser-Leu-Ile-Gly-Lys-Val_[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 1 Reference Ions Near m/z 638.3831

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000053366 Unreliable	638.3847	638.3847 ~ 638.3847 MzDiff: `none`	Not Annotated	2.62 (0%)	DESI [NOVOCELL:BACKGROUND] blank

Found 5 Sample Hits

Metabolite	Species	Sample
Ser-Leu-Ile-Gly-Lys-Val Formula: C28H53N7O8 (615.3955) Adducts: [M+Na]+ (Ppm: 3)	Homo sapiens (esophagus)	LNTO22_1_4 Resolution: 17μm, 82x80 Description
m/z_638.3847 Formula: - (n/a) Adducts: (Ppm: 0)	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).
Ser-Leu-Ile-Gly-Lys-Val Formula: C28H53N7O8 (615.3955) Adducts: [M+Na]+ (Ppm: 1.8)	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).
Ser-Leu-Ile-Gly-Lys-Val Formula: C28H53N7O8 (615.3955) Adducts: [M+Na]+ (Ppm: 8)	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).
m/z_638.3842 Formula: - (n/a) Adducts: (Ppm: 0)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description