M/Z: 638.0568

Hit 0 annotations:

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 638.0568

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000017276 Reliable	638.0568	638.0567 ~ 638.0569 MzDiff: `0.7 ppm`	Not Annotated	3.57 (0%)	Vitis vinifera [PO:0009087] mesocarp
MSI_000053938 Unreliable	638.0649	638.0649 ~ 638.065 MzDiff: `0.5 ppm`	Not Annotated	3.81 (0%)	MALDI - CHCA [NOVOCELL:BACKGROUND] blank
MSI_000055351 Unreliable	638.0569	638.0569 ~ 638.0569 MzDiff: `none`	Not Annotated	1.46 (0%)	MALDI - DHB [NOVOCELL:BACKGROUND] blank
MSI_000055437 Unreliable	638.0639	638.0639 ~ 638.0639 MzDiff: `none`	bisorganyltrisulfane (BioDeep_00000228971) Formula: C20H26N6O12S3 (638.0771)	1.45 (100%)	MALDI - DHB [NOVOCELL:BACKGROUND] blank

Found 7 Sample Hits

Metabolite	Species	Sample
m/z_638.0571 Formula: - (n/a) Adducts: (Ppm: 0)	Vitis vinifera (Fruit)	grape_dhb_91_1 Resolution: 50μm, 120x114 Description Grape berries fruit, condition: Ripe
m/z_638.0567 Formula: - (n/a) Adducts: (Ppm: 0)	Vitis vinifera (Fruit)	grape_dhb_164_1 Resolution: 17μm, 136x122 Description Grape berries fruit, condition: Late
m/z_638.0569 Formula: - (n/a) Adducts: (Ppm: 0)	Vitis vinifera (Fruit)	grape_dhb_163_1 Resolution: 17μm, 132x115 Description Grape berries fruit, condition: Late
m/z_638.0577 Formula: - (n/a) Adducts: (Ppm: 0)	Mus musculus (Lung)	image3 Resolution: 40μm, 146x190 Description Fig. 4 MALDI-MSI data of mouse lung tissue after administration with D9-choline and U13C-DPPC–containing Poractant alfa surfactant (labels administered 12 h prior to tissue collection). Ion images of (A) m/z 796.6856 ([U13C-DPPC+Na]+), (B) m/z 756.5154 [PC32:0+Na]+), and (C) m/z 765.6079 ([D9-PC32:0+Na]+). D: Overlay image of [U13C-PC32:0+Na]+ (red) and [D9-PC32:0+Na]+ (green). 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. MSI, mass spectrometry imaging; PC, phosphatidylcholine; U13C-DPPC, universally 13C-labeled dipalmitoyl PC.
m/z_638.0569 Formula: - (n/a) Adducts: (Ppm: 0)	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.
m/z_638.0539 Formula: - (n/a) Adducts: (Ppm: 0)	Mus musculus (Lung)	image5 Resolution: 40μm, 163x183 Description Supplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). Ion images of (a) m/z 796.6856 ([U13C-DPPC+Na]+), (b) m/z 756.5154 [PC32:0+Na]+ and (c) m/z 765.6079 ([D9-PC32:0+Na]+). (d) Overlay image of [U13C-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0.
m/z_638.0607 Formula: - (n/a) Adducts: (Ppm: 0)	Mus musculus (Lung)	image5 Resolution: 40μm, 163x183 Description Supplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). Ion images of (a) m/z 796.6856 ([U13C-DPPC+Na]+), (b) m/z 756.5154 [PC32:0+Na]+ and (c) m/z 765.6079 ([D9-PC32:0+Na]+). (d) Overlay image of [U13C-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0.