| | Identification | More |  | [Name] 
 XANTHOSINE
 |  | [CAS] 
 146-80-5
 |  | [Synonyms] 
 9-[3,4-DIHYDROXY-5-(HYDROXYMETHYL)OXOLAN-2-YL]-3H-PURINE-2,6-DIONE
 9-B-D-RIBOFURANOSYLXANTHINE
 9-BETA-D-RIBOFURANOSYLXANTHINE
 XANTHINE-9-RIBOFURANOSIDE
 XANTHINE RIBOSIDE
 XANTHOSINE
 XANTHOSINE HYDRATE
 XANTHOSINE MIN 99%
 1g
 Ribosylxanthin=Xao
 9-β-D-Ribofuranosylxanthine
 Xanthine-9b-D-ribofuranoside
 2,6-Dihydroxy-9-β-D-ribofuranosyl-9H-purine
 9-β-D-Ribofuranosyl-9H-purine-2,6(1H,3H)-dione
 Xao
 9-Pentofuranosyl-3,9-dihydro-1H-purine-2,6-dione
 |  | [EINECS(EC#)] 
 205-679-9
 |  | [Molecular Formula] 
 C10H12N4O6
 |  | [MDL Number] 
 MFCD00005726
 |  | [Molecular Weight] 
 284.23
 |  | [MOL File] 
 146-80-5.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 174~176℃
 |  | [density ] 
 2.25±0.1 g/cm3(Predicted)
 |  | [refractive index ] 
 -52 ° (C=8, 0.3mol/L NaOH)
 |  | [storage temp. ] 
 Hygroscopic, -20°C Freezer, Under inert atmosphere
 |  | [solubility ] 
 Aqueous Base (Slightly), DMSO (Slightly), Methanol (Slightly, Heated)
 |  | [form ] 
 Solid
 |  | [pka] 
 pK1:<2.5(+1);pK2:5.67(0);pK3:12.00(-1) (25°C)
 |  | [color ] 
 White to Off-White
 |  | [Merck ] 
 10065
 |  | [Stability:] 
 Hygroscopic
 |  | [CAS DataBase Reference] 
 146-80-5(CAS DataBase Reference)
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 The deamination product of Guanosine. Potential biomarker for detecting radiation exposure. XANTHOSINE is used in the amplification of DNA isothermal strand displacement.
 |  | [Uses] 
 Xanthosine-13C5, is the labeled analogue of Xanthosine (X742100), the deamination product of Guanosine. It is also a potential biomarker for detecting radiation exposure.
 |  | [Definition] 
 ChEBI: A purine nucleoside in which xanthine is attached to ribofuranose via a beta-N9-glycosidic bond.
 |  | [storage] 
 Store at -20°C
 | 
 |  |