M/Z: 639.0427

Hit 2 annotations: Heparan sulfate_[M-H2O+NH4]+; 2-bromo-8-[1,1-dichloro-3-hydroxy-3-(4-methyl-5-oxooxolan-2-yl)propan-2-yl]-18-hydroxy-9,13-dimethyl-17,19-dioxapentacyclo[13.3.1.0¹,¹³.0⁴,¹².0⁵,¹⁰]nonadeca-5(10),6,8-trien-11-one_[M+Na]+

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 0 Reference Ions Near m/z 639.0427

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context

Found 4 Sample Hits

Metabolite	Species	Sample
Heparan sulfate Formula: C14H25NO21S3 (639.0081) Adducts: [M-H2O+NH4]+ (Ppm: 13.5)	Mus musculus (Left upper arm)	357_l_total ion count Resolution: 50μm, 97x131 Description Diseased
2-bromo-8-[1,1-dichloro-3-hydroxy-3-(4-methyl-5-oxooxolan-2-yl)propan-2-yl]-18-hydroxy-9,13-dimethyl-17,19-dioxapentacyclo[13.3.1.0¹,¹³.0⁴,¹².0⁵,¹⁰]nonadeca-5(10),6,8-trien-11-one Formula: C27H31BrCl2O7 (616.063) Adducts: [M+Na]+ (Ppm: 14.9)	Mytilus edulis (mantle)	20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210 Resolution: 10μm, 270x210 Description
2-bromo-8-[1,1-dichloro-3-hydroxy-3-(4-methyl-5-oxooxolan-2-yl)propan-2-yl]-18-hydroxy-9,13-dimethyl-17,19-dioxapentacyclo[13.3.1.0¹,¹³.0⁴,¹².0⁵,¹⁰]nonadeca-5(10),6,8-trien-11-one Formula: C27H31BrCl2O7 (616.063) Adducts: [M+Na]+ (Ppm: 16.6)	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
2-bromo-8-[1,1-dichloro-3-hydroxy-3-(4-methyl-5-oxooxolan-2-yl)propan-2-yl]-18-hydroxy-9,13-dimethyl-17,19-dioxapentacyclo[13.3.1.0¹,¹³.0⁴,¹².0⁵,¹⁰]nonadeca-5(10),6,8-trien-11-one Formula: C27H31BrCl2O7 (616.063) Adducts: [M+Na]+ (Ppm: 16.6)	Mytilus edulis (mantle)	20190216_MS38_Mytilus_mantle_350-1500_DHB_pos_A26_10um_275x210 Resolution: 10μm, 275x210 Description