M/Z: 273.033

Hit 4 annotations: Nimesulide_[M+H-2H2O]+; Sedoheptulose 7-phosphate_[M+H-H2O]+; 8-chloro-7-(hexa-2,4-diyn-1-ylidene)-9-hydroxy-1,6-dioxaspiro[4.4]non-2-en-4-yl acetate_[M+H-2H2O]+; 2'-Deoxyuridine 5'-monophosphate disodium salt_[M+H-2H2O]+

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 18 Reference Ions Near m/z 273.033

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000054024 Reliable	273.0393	273.0391 ~ 273.0397 MzDiff: `2.4 ppm`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	3.56 (100%)	MALDI - CHCA [NOVOCELL:BACKGROUND] blank
MSI_000017587 Reliable	273.0393	273.0393 ~ 273.0393 MzDiff: `0.2 ppm`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	2.03 (100%)	Vitis vinifera [PO:0009087] mesocarp
MSI_000021277 Reliable	273.0394	273.0392 ~ 273.0396 MzDiff: `1.6 ppm`	Sedoheptulose 7-phosphate (BioDeep_00000001740) Formula: C7H15O10P (290.0403)	4.8 (100%)	Rattus norvegicus [UBERON:0004360] cauda epididymis
MSI_000016352 Unreliable	273.0393	273.0393 ~ 273.0393 MzDiff: `0.0 ppm`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	1.45 (100%)	Vitis vinifera [PO:0009086] endocarp
MSI_000016483 Unreliable	273.0332	273.033 ~ 273.0334 MzDiff: `1.5 ppm`	8-chloro-7-(hexa-2,4-diyn-1-ylidene)-9-hydroxy-1,6-dioxaspiro[4.4]non-2-en-4-yl acetate (BioDeep_00002167809) Formula: C15H13ClO5 (308.0451)	0.85 (100%)	Vitis vinifera [PO:0009086] endocarp
MSI_000004004 Unreliable	273.0396	273.0396 ~ 273.0396 MzDiff: `none`	Sedoheptulose 7-phosphate (BioDeep_00000001740) Formula: C7H15O10P (290.0403)	1.19 (100%)	Homo sapiens [UBERON:0002107] liver
MSI_000012599 Unavailable	273.0397	273.0397 ~ 273.0397 MzDiff: `none`	Sedoheptulose 7-phosphate (BioDeep_00000001740) Formula: C7H15O10P (290.0403)	-0.04 (100%)	Plant [PO:0005020] vascular bundle
MSI_000012766 Unavailable	273.0334	273.0334 ~ 273.0334 MzDiff: `none`	Nimesulide (BioDeep_00000181678) Formula: C13H12N2O5S (308.0467)	-0.45 (100%)	Plant [PO:0005020] vascular bundle
MSI_000014042 Unavailable	273.0397	273.0397 ~ 273.0397 MzDiff: `none`	Sedoheptulose 7-phosphate (BioDeep_00000001740) Formula: C7H15O10P (290.0403)	-0.25 (100%)	Plant [PO:0005417] phloem
MSI_000014250 Unavailable	273.0334	273.0334 ~ 273.0334 MzDiff: `none`	Nimesulide (BioDeep_00000181678) Formula: C13H12N2O5S (308.0467)	-0.43 (100%)	Plant [PO:0005417] phloem
MSI_000014815 Unavailable	273.0334	273.0334 ~ 273.0334 MzDiff: `none`	Nimesulide (BioDeep_00000181678) Formula: C13H12N2O5S (308.0467)	-0.45 (100%)	Plant [PO:0006036] root epidermis
MSI_000018219 Unreliable	273.0334	273.0334 ~ 273.0334 MzDiff: `none`	Nimesulide (BioDeep_00000181678) Formula: C13H12N2O5S (308.0467)	1.79 (100%)	Plant [PO:0020124] root stele
MSI_000018595 Unreliable	273.0397	273.0397 ~ 273.0397 MzDiff: `none`	Sedoheptulose 7-phosphate (BioDeep_00000001740) Formula: C7H15O10P (290.0403)	1.71 (100%)	Plant [PO:0020124] root stele
MSI_000019818 Unavailable	273.0334	273.0334 ~ 273.0334 MzDiff: `none`	Nimesulide (BioDeep_00000181678) Formula: C13H12N2O5S (308.0467)	-0.45 (100%)	Plant [PO:0025197] stele
MSI_000033564 Unreliable	273.0392	273.0392 ~ 273.0392 MzDiff: `none`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	1.66 (100%)	Posidonia oceanica [PO:0005352] xylem
MSI_000035562 Unavailable	273.0392	273.0392 ~ 273.0392 MzDiff: `none`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	-0.11 (100%)	Posidonia oceanica [PO:0006203] pericycle
MSI_000037142 Unreliable	273.0391	273.0391 ~ 273.0391 MzDiff: `none`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	2.04 (100%)	Posidonia oceanica [UBERON:0000329] hair root
MSI_000040112 Unreliable	273.0394	273.0394 ~ 273.0394 MzDiff: `none`	8,11-dihydroxy-2h-[1,3]dioxolo[4,5-b]xanthen-10-one (BioDeep_00002303664) Formula: C14H8O6 (272.0321)	0.04 (100%)	Posidonia oceanica [PO:0005417] phloem

Found 12 Sample Hits

Metabolite	Species	Sample
Nimesulide Formula: C13H12N2O5S (308.0467) Adducts: [M+H-2H2O]+ (Ppm: 2.1)	Plant (Root)	MPIMM_035_QE_P_PO_6pm Resolution: 30μm, 165x170 Description
Sedoheptulose 7-phosphate Formula: C7H15O10P (290.0403) Adducts: [M+H-H2O]+ (Ppm: 9.5)	Homo sapiens (Liver)	20171107_FIT4_DHBpos_p70_s50 Resolution: 50μm, 70x70 Description
8-chloro-7-(hexa-2,4-diyn-1-ylidene)-9-hydroxy-1,6-dioxaspiro[4.4]non-2-en-4-yl acetate Formula: C15H13ClO5 (308.0451) Adducts: [M+H-2H2O]+ (Ppm: 7.7)	Vitis vinifera (Fruit)	grape_dhb_91_1 Resolution: 50μm, 120x114 Description Grape berries fruit, condition: Ripe
Sedoheptulose 7-phosphate Formula: C7H15O10P (290.0403) Adducts: [M+H-H2O]+ (Ppm: 8.4)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito03_17 Resolution: 17μm, 208x108 Description 1 male adult wild-type rat was obtained from Inserm U1085 - Irset Research Institute (University of Rennes1, France). Animals were age 60 days and were reared under ad-lib conditions. Care and handling of all animals complied with EU directive 2010/63/EU on the protection of animals used for scientific purposes. The whole epididymis was excised from each animal immediately post-mortem, loosely wrapped rapidly in an aluminum foil and a 2.5% (w/v) carboxymethylcellulose (CMC) solution was poured to embed the epididymis to preserve their morphology. To remove air bubbles, the filled aluminum molds was gently freezed by depositing it on isopentane or dry ice, then on the nitrogen vapors and finally by progressively dipping the CMC/sample coated with aluminum foil into liquid nitrogen (or only flush with liquid nitrogen). Frozen tissues were stored at -80 °C until use to avoid degradation.
Sedoheptulose 7-phosphate Formula: C7H15O10P (290.0403) Adducts: [M+H-H2O]+ (Ppm: 8.1)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito03_18 Resolution: 17μm, 208x104 Description
Nimesulide Formula: C13H12N2O5S (308.0467) Adducts: [M+H-2H2O]+ (Ppm: 6.1)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito08_43 Resolution: 17μm, 298x106 Description
Sedoheptulose 7-phosphate Formula: C7H15O10P (290.0403) Adducts: [M+H-H2O]+ (Ppm: 8.4)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito08_44 Resolution: 17μm, 299x111 Description
8-chloro-7-(hexa-2,4-diyn-1-ylidene)-9-hydroxy-1,6-dioxaspiro[4.4]non-2-en-4-yl acetate Formula: C15H13ClO5 (308.0451) Adducts: [M+H-2H2O]+ (Ppm: 6.2)	Vitis vinifera (Fruit)	grape_dhb_164_1 Resolution: 17μm, 136x122 Description Grape berries fruit, condition: Late
8-chloro-7-(hexa-2,4-diyn-1-ylidene)-9-hydroxy-1,6-dioxaspiro[4.4]non-2-en-4-yl acetate Formula: C15H13ClO5 (308.0451) Adducts: [M+H-2H2O]+ (Ppm: 6.6)	Vitis vinifera (Fruit)	grape_dhb_163_1 Resolution: 17μm, 132x115 Description Grape berries fruit, condition: Late
Nimesulide Formula: C13H12N2O5S (308.0467) Adducts: [M+H-2H2O]+ (Ppm: 1.3)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito08_47 Resolution: 17μm, 301x111 Description
Sedoheptulose 7-phosphate Formula: C7H15O10P (290.0403) Adducts: [M+H-H2O]+ (Ppm: 5.5)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito03_14 Resolution: 17μm, 205x103 Description
2'-Deoxyuridine 5'-monophosphate disodium salt Formula: C9H13N2O8P (308.041) Adducts: [M+H-2H2O]+ (Ppm: 7.3)	Homo sapiens (esophagus)	LNTO22_1_7 Resolution: 75μm, 69x54 Description