M/Z: 329.2427

Hit 3 annotations: Trimethoprim_[M+K]+; Docosahexaenoic acid_[M+H]+; Prenylamine_[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 8 Reference Ions Near m/z 329.2427

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000057860 Reliable	329.2492	329.2491 ~ 329.2496 MzDiff: `2.2 ppm`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	16.77 (100%)	Homo sapiens [UBERON:0001043] esophagus
MSI_000057969 Reliable	329.2336	329.2333 ~ 329.2339 MzDiff: `2.4 ppm`	Trimethoprim (BioDeep_00000001590) Formula: C14H18N4O3 (290.1379)	3.71 (93%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000056738 Reliable	329.2493	329.2491 ~ 329.2496 MzDiff: `2.2 ppm`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	6.85 (100%)	Homo sapiens [UBERON:0001043] esophagus
MSI_000043076 Reliable	329.2493	329.2491 ~ 329.2496 MzDiff: `2.2 ppm`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	6.14 (100%)	Homo sapiens [UBERON:0001043] esophagus
MSI_000065123 Reliable	329.2485	329.2483 ~ 329.2487 MzDiff: `1.5 ppm`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	6.05 (100%)	Homo sapiens [UBERON:0001155] colon
MSI_000047033 Unreliable	329.245	329.245 ~ 329.245 MzDiff: `none`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	2.96 (100%)	Homo sapiens [UBERON:0013067] colorectal mucosa
MSI_000051768 Unreliable	329.2434	329.2434 ~ 329.2434 MzDiff: `none`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	2.47 (100%)	Homo sapiens [UBERON:0001052] rectum
MSI_000056089 Unavailable	329.2496	329.2496 ~ 329.2496 MzDiff: `none`	Docosahexaenoic acid (BioDeep_00000002670) Formula: C22H32O2 (328.2402)	-0.54 (100%)	Homo sapiens [UBERON:0007779] transudate

Found 9 Sample Hits

Metabolite	Species	Sample
Trimethoprim Formula: C14H18N4O3 (290.1379) Adducts: [M+K]+ (Ppm: 14.5)	Homo sapiens (esophagus)	LNTO22_1_3 Resolution: 75μm, 121x68 Description
Docosahexaenoic acid Formula: C22H32O2 (328.2402) Adducts: [M+H]+ (Ppm: 7.6)	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).
Docosahexaenoic acid Formula: C22H32O2 (328.2402) Adducts: [M+H]+ (Ppm: 11.6)	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).
Docosahexaenoic acid Formula: C22H32O2 (328.2402) Adducts: [M+H]+ (Ppm: 13.7)	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).
Trimethoprim Formula: C14H18N4O3 (290.1379) Adducts: [M+K]+ (Ppm: 10.8)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description
Docosahexaenoic acid Formula: C22H32O2 (328.2402) Adducts: [M+H]+ (Ppm: 6.7)	Homo sapiens (NA)	160TopL,130TopR,150BottomL,140BottomR-profile Resolution: 17μm, 142x136 Description
m/z_329.2399 Formula: - (n/a) Adducts: (Ppm: 0)	Homo sapiens (esophagus)	LNTO29_16_3 Resolution: 17μm, 108x107 Description
m/z_329.2404 Formula: - (n/a) Adducts: (Ppm: 0)	Homo sapiens (esophagus)	LNTO22_1_8 Resolution: 75μm, 69x61 Description
Prenylamine Formula: C24H27N (329.2143) Adducts: [M-H2O+NH4]+ (Ppm: 9.4)	Homo sapiens (esophagus)	LNTO22_2_2 Resolution: 75μm, 135x94 Description