M/Z: 507.0299

Hit 3 annotations: Theograndin I_[M+H-2H2O]+; Cefonicid_[M+H-2H2O]+; Adenosine triphosphate_[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 507.0299

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000015640 Unreliable	507.0302	507.0301 ~ 507.0302 MzDiff: `0.5 ppm`	Theograndin I (BioDeep_00000245464) Formula: C21H18O15S (542.0366)	3.82 (100%)	Vitis vinifera [PO:0009085] exocarp

Found 7 Sample Hits

Metabolite	Species	Sample
Theograndin I Formula: C21H18O15S (542.0366) Adducts: [M+H-2H2O]+ (Ppm: 14)	Vitis vinifera (Fruit)	grape_dhb_91_1 Resolution: 50μm, 120x114 Description Grape berries fruit, condition: Ripe
Theograndin I Formula: C21H18O15S (542.0366) Adducts: [M+H-2H2O]+ (Ppm: 14.4)	Vitis vinifera (Fruit)	grape_dhb_164_1 Resolution: 17μm, 136x122 Description Grape berries fruit, condition: Late
Theograndin I Formula: C21H18O15S (542.0366) Adducts: [M+H-2H2O]+ (Ppm: 14.6)	Vitis vinifera (Fruit)	grape_dhb_163_1 Resolution: 17μm, 132x115 Description Grape berries fruit, condition: Late
Cefonicid Formula: C18H18N6O8S3 (542.0348) Adducts: [M+H-2H2O]+ (Ppm: 7.4)	Mus musculus (Lung)	image4 Resolution: 40μm, 162x156 Description Fig 6c Fig. 6 MALDI-MSI of U13C-PC16:0/16:0 acyl chain remodeling. A: Averaged MALDI mass spectrum from lung tissue collected from mice euthanized 12 h after administration of D9-choline and U13C-DPPC–containing Poractant alfa surfactant. The ion at m/z 828.6321 is assigned as the [M+Na]+ ion of 13C24-PC16:0_20:4 formed by acyl remodeling of U13C-PC16:0/16:0. The “NL” value refers to the intensity of the base peak in the full range MS1 spectrum. B: MS/MS spectrum of precursor ions at m/z 828.5 ± 0.5 with fragment ions originating from [13C24-PC16:0_20:4+Na]+ annotated. Part-per-million (ppm) mass errors are provided in parentheses. C, D: MALDI-MSI data of [U13C-DPPC+Na]+ (blue), [PC36:4+Na]+ (green) and [13C24-PC16:0_20:4+Na]+ (red) in lung tissue collected from mice (C) 12 h and (D) 18 h after label administration. All images were visualized using total-ion-current normalization and hotspot removal (high quantile = 99%). MS/MS, tandem mass spectrometry; MSI, mass spectrometry imaging; PC, phosphatidylcholine; U13C-DPPC, universally 13C-labeled dipalmitoyl PC.
Adenosine triphosphate Formula: C10H16N5O13P3 (506.9957) Adducts: [M-H2O+NH4]+ (Ppm: 17.7)	Mytilus edulis (mantle)	20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210 Resolution: 10μm, 270x210 Description
Adenosine triphosphate Formula: C10H16N5O13P3 (506.9957) Adducts: [M-H2O+NH4]+ (Ppm: 16.7)	Mytilus edulis (gill)	20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210 Resolution: 11μm, 305x210 Description single cell layer `class_4` is the gill structure cells, metabolite ion 534.2956 is the top representive ion of this type of cell
Adenosine triphosphate Formula: C10H16N5O13P3 (506.9957) Adducts: [M-H2O+NH4]+ (Ppm: 16.9)	Mytilus edulis (mantle)	20190216_MS38_Mytilus_mantle_350-1500_DHB_pos_A26_10um_275x210 Resolution: 10μm, 275x210 Description