9-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-7-methyl-6-oxo-6,9-dihydro-3H-purin-7-ium CAS 20245-33-4
| CAS No. | 20245-33-4 |
| Molecular Formula | C11H15N4O5 |
| Molecular Weight | 283.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 9-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-7-methyl-6-oxo-6,9-dihydro-3H-purin-7-ium meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
9-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-7-methyl-6-oxo-6,9-dihydro-3H-purin-7-ium (CAS 20245-33-4) is a high-purity analytical reference standard with the molecular formula C11H15N4O5 and a molecular weight of 283.26 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 9-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-7-methyl-6-oxo-6,9-dihydro-3H-purin-7-ium is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 283.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H15N4O5 |
| Molecular Weight | 283.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 4,6-Diamino-1-(4-fluorophenyl)-2-oxo-2,3-dihydro-1h-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 878466-56-9)
- Collagen (CAS 9064-67-9)
- 3-(4-Fluorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide (CAS 241127-32-2)
- N-(2-fluorophenyl)-6-(1H-1,2,4-triazol-1-yl)nicotinamide (CAS 672951-19-8)
- 1-(4-Ethylphenyl)propan-2-one (CAS 75251-24-0)
- 4-[(4-Carboxyphenyl)sulfanyl]benzoic acid (CAS 4919-48-6)
- 2,3-Dichloro-5-(difluoromethoxy)cinnamic acid (CAS 1807411-41-1)
- (R)-Bis(3,5-bis(trifluoromethyl)phenyl)(pyrrolidin-2-yl)methanol (CAS 948595-00-4)
- Rotigotine Impurity 30 (CAS CATO-C4X-192730)
- Ethyl 4-(2-hydroxy-3-isopropoxypropyl)piperazine-1-carboxylate hydrochloride (CAS 1179463-12-7)
- Diethyl 2-nitroterephthalate (CAS 39020-35-4)
- 1,3-Propanedione, 1,3-di-4-pyridinyl- (CAS 42899-59-2)
- 3-Amino-N-(5-chloro-2-methylphenyl)-6-(pyridin-4-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 625370-62-9)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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