M/Z: 268.1908

Hit 2 annotations: Metoprolol_[M+H]+; 2-cis,4-trans-xanthoxin_[M+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 5 Reference Ions Near m/z 268.1908

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000006112 Reliable	268.1942	268.194 ~ 268.1944 MzDiff: `1.6 ppm`	Metoprolol (BioDeep_00000002568) Formula: C15H25NO3 (267.1834)	12.33 (100%)	Rattus norvegicus [UBERON:0004358] caput epididymis
MSI_000017613 Reliable	268.1889	268.1889 ~ 268.189 MzDiff: `0.5 ppm`	2-cis,4-trans-xanthoxin (BioDeep_00000009458) Formula: C15H22O3 (250.1569)	1.89 (100%)	Vitis vinifera [PO:0009087] mesocarp
MSI_000018198 Reliable	268.1827	268.1827 ~ 268.1827 MzDiff: `0.0 ppm`	NSC-608986 (BioDeep_00000008185) Formula: C17H21N3 (267.1735)	0.26 (100%)	Vitis vinifera [PO:0009087] mesocarp
MSI_000016708 Unreliable	268.1889	268.1889 ~ 268.189 MzDiff: `0.5 ppm`	2-cis,4-trans-xanthoxin (BioDeep_00000009458) Formula: C15H22O3 (250.1569)	0.19 (100%)	Vitis vinifera [PO:0009086] endocarp
MSI_000016738 Unreliable	268.1827	268.1827 ~ 268.1827 MzDiff: `none`	NSC-608986 (BioDeep_00000008185) Formula: C17H21N3 (267.1735)	0.11 (100%)	Vitis vinifera [PO:0009086] endocarp

Found 9 Sample Hits

Metabolite	Species	Sample
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 1.5)	Marker Pen (NA)	3ul_0.8Mpa_RAW_20241016-PAPER PNMK Resolution: 30μm, 315x42 Description By writing the four English letters “PNMK” on white paper with a marker pen, and then scanning with a DESI ion source to obtain the scanning result. The signal of the chemical substances on the marker pen used appears on the channel with an m/z value of `322.1918`, `323.1953`, `546.4010`, and etc, from the single cell deconvolution sampling layer `class_4`. This test data was tested by chuxiaoping from PANOMIX’s R&D laboratory.
2-cis,4-trans-xanthoxin Formula: C15H22O3 (250.1569) Adducts: [M+NH4]+ (Ppm: 6.8)	Vitis vinifera (Fruit)	grape_dhb_91_1 Resolution: 50μm, 120x114 Description Grape berries fruit, condition: Ripe
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 11.9)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito03_18 Resolution: 17μm, 208x104 Description
2-cis,4-trans-xanthoxin Formula: C15H22O3 (250.1569) Adducts: [M+NH4]+ (Ppm: 6.4)	Vitis vinifera (Fruit)	grape_dhb_164_1 Resolution: 17μm, 136x122 Description Grape berries fruit, condition: Late
2-cis,4-trans-xanthoxin Formula: C15H22O3 (250.1569) Adducts: [M+NH4]+ (Ppm: 6.8)	Vitis vinifera (Fruit)	grape_dhb_163_1 Resolution: 17μm, 132x115 Description Grape berries fruit, condition: Late
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 13.8)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito08_48 Resolution: 17μm, 294x107 Description
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 13.4)	Rattus norvegicus (Epididymis)	epik_dhb_head_ito01_03 Resolution: 17μm, 159x110 Description
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 13)	Rattus norvegicus (normal)	epik_dhb_head_ito01_05 Resolution: 17μm, 183x105 Description
Metoprolol Formula: C15H25NO3 (267.1834) Adducts: [M+H]+ (Ppm: 0.3)	Mus musculus (brain)	Brain02_Bregma-1-46 Resolution: 17μm, 294x399 Description