(2R,3S,4R,5R)-2-(Hydroxymethyl)-5-((8-methoxypyrimido[5,4-d]pyrimidin-4-yl)amino)tetrahydrofuran-3,4-diol CAS 118515-48-3
| CAS No. | 118515-48-3 |
| Molecular Formula | C12H15N5O5 |
| Molecular Weight | 309.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(2R,3S,4R,5R)-2-(Hydroxymethyl)-5-((8-methoxypyrimido[5,4-d]pyrimidin-4-yl)amino)tetrahydrofuran-3,4-diol (CAS 118515-48-3) is a high-purity analytical reference standard with the molecular formula C12H15N5O5 and a molecular weight of 309.28 g/mol.
Structurally, (2R,3S,4R,5R)-2-(Hydroxymethyl)-5-((8-methoxypyrimido[5,4-d]pyrimidin-4-yl)amino)tetrahydrofuran-3,4-diol (C12H15N5O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 309.28 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H15N5O5 |
| Molecular Weight | 309.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 5 |
Recommended Standards
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- 113051-62-0 6-Methyl-8-(2-deoxy-b-D-ribofuranosyl)isoxanthopterin (CAS 113051-62-0)
- 1-(Tert-butyl) 3-methyl 4-(trifluoromethyl)-5,6-dihydropyridine-1,3(4H)-dicarboxylate (CAS 1373503-19-5)
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- N-(2,3-Dichlorophenyl)-2-fluorobenzamide (CAS 200710-81-2)
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