M/Z: 654.4094

Hit 3 annotations: Madlongiside C_[M+NH4]+; all-trans-Heptaprenyl diphosphate_[M-H2O+NH4]+; PA(12:0/20:4(6E,8Z,11Z,14Z)+=O(5))_[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 1 Reference Ions Near m/z 654.4094

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000056420 Reliable	654.4096	654.4094 ~ 654.4098 MzDiff: `1.8 ppm`	PA(12:0/20:4(6E,8Z,11Z,14Z)+=O(5)) (BioDeep_00000187788) Formula: C35H59O9P (654.3896)	4.68 (56%)	DESI [NOVOCELL:BACKGROUND] blank

Found 5 Sample Hits

Metabolite	Species	Sample
Madlongiside C Formula: C35H56O10 (636.3873) Adducts: [M+NH4]+ (Ppm: 16.9)	Homo sapiens (Liver)	20171107_FIT4_DHBpos_p70_s50 Resolution: 50μm, 70x70 Description
all-trans-Heptaprenyl diphosphate Formula: C35H60O7P2 (654.3814) Adducts: [M-H2O+NH4]+ (Ppm: 12.7)	Mus musculus (Lung)	image1 Resolution: 40μm, 187x165 Description Fig. 2 MALDI-MSI data from the same mouse lung tissue analyzed in Fig. 1. A: Optical image of the post-MSI, H&E-stained tissue section. B–D, F–G: Ion images of (B) m/z 796.6855 ([U13C-DPPC+Na]+), (C) m/z 756.5514 ([PC32:0+Na]+), (D) m/z 765.6079 ([D9-PC32:0+Na]+), (F) m/z 754.5359 ([PC32:1+Na]+), and (G) m/z 763.5923 ([D9-PC32:1+Na]+). E, H: Ratio images of (E) [D9-PC32:0+Na]+:[PC32:0+Na]+ and (H) [D9-PC32:1+Na]+:[PC32:1+Na]+. Part-per-million (ppm) mass errors are indicated in parentheses. All images were visualized using total-ion-current normalization and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. U13C-DPPC, universally 13C-labeled dipalmitoyl PC; PC, phosphatidylcholine; MSI, mass spectrometry imaging; H&E, hematoxylin and eosin. Fig 1-3, Fig S1-S3, S5
PA(12:0/20:4(6E,8Z,11Z,14Z)+=O(5)) Formula: C35H59O9P (654.3896) Adducts: [M-H2O+NH4]+ (Ppm: 4.8)	Homo sapiens (esophagus)	LNTO29_16_2 Resolution: 17μm, 95x101 Description
all-trans-Heptaprenyl diphosphate Formula: C35H60O7P2 (654.3814) Adducts: [M-H2O+NH4]+ (Ppm: 7.2)	Homo sapiens (esophagus)	LNTO29_16_3 Resolution: 17μm, 108x107 Description
PA(12:0/20:4(6E,8Z,11Z,14Z)+=O(5)) Formula: C35H59O9P (654.3896) Adducts: [M-H2O+NH4]+ (Ppm: 4)	Homo sapiens (esophagus)	LNTO30_8M_5 Resolution: 75μm, 56x54 Description