M/Z: 299.208

Hit 2 annotations: Norethindrone_[M+H]+; Nylidrin_[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 4 Reference Ions Near m/z 299.208

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000056400 Reliable	299.2022	299.202 ~ 299.2026 MzDiff: `2.3 ppm`	Norethindrone (BioDeep_00000003060) Formula: C20H26O2 (298.1933)	4.02 (100%)	DESI [NOVOCELL:BACKGROUND] blank
MSI_000043152 Reliable	299.2021	299.2021 ~ 299.2022 MzDiff: `0.6 ppm`	Norethindrone (BioDeep_00000003060) Formula: C20H26O2 (298.1933)	2.48 (100%)	Homo sapiens [UBERON:0001043] esophagus
MSI_000055667 Unreliable	299.2026	299.2026 ~ 299.2026 MzDiff: `none`	Norethindrone (BioDeep_00000003060) Formula: C20H26O2 (298.1933)	1.15 (100%)	Homo sapiens [UBERON:0007779] transudate
MSI_000057614 Unreliable	299.208	299.208 ~ 299.208 MzDiff: `none`	Nylidrin (BioDeep_00000181851) Formula: C19H25NO2 (299.1885)	0.77 (100%)	Homo sapiens [UBERON:0007779] transudate

Found 7 Sample Hits

Metabolite	Species	Sample
Norethindrone Formula: C20H26O2 (298.1933) Adducts: [M+H]+ (Ppm: 5.2)	Homo sapiens (esophagus)	LNTO22_1_3 Resolution: 75μm, 121x68 Description
Nylidrin Formula: C19H25NO2 (299.1885) Adducts: [M-H2O+NH4]+ (Ppm: 12.6)	Homo sapiens (esophagus)	LNTO22_1_4 Resolution: 17μm, 82x80 Description
Norethindrone Formula: C20H26O2 (298.1933) Adducts: [M+H]+ (Ppm: 4.5)	Homo sapiens (colorectal adenocarcinoma)	80TopL, 50TopR, 70BottomL, 60BottomR-profile Resolution: 17μm, 137x136 Description The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).
Norethindrone Formula: C20H26O2 (298.1933) Adducts: [M+H]+ (Ppm: 3.9)	Homo sapiens (colorectal adenocarcinoma)	520TopL, 490TopR, 510BottomL, 500BottomR-profile Resolution: 17μm, 147x131 Description The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).
Norethindrone Formula: C20H26O2 (298.1933) Adducts: [M+H]+ (Ppm: 12.9)	Homo sapiens (colorectal adenocarcinoma)	439TopL, 409TopR, 429BottomL, 419BottomR-profile Resolution: 17μm, 157x136 Description The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).
Nylidrin Formula: C19H25NO2 (299.1885) Adducts: [M-H2O+NH4]+ (Ppm: 9.6)	Homo sapiens (esophagus)	TO31T Resolution: 75μm, 56x54 Description
Nylidrin Formula: C19H25NO2 (299.1885) Adducts: [M-H2O+NH4]+ (Ppm: 8.3)	Homo sapiens (esophagus)	TO29T Resolution: 75μm, 56x48 Description