(2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-fluoro-6-(4-nitrophenethoxy)-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite CAS 163668-79-9
| CAS No. | 163668-79-9 |
| Molecular Formula | C40H46FN6O7P |
| Molecular Weight | 772.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-fluoro-6-(4-nitrophenethoxy)-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 163668-79-9) is a high-purity analytical reference standard with the molecular formula C40H46FN6O7P and a molecular weight of 772.80 g/mol.
Structurally, (2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-fluoro-6-(4-nitrophenethoxy)-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (C40H46FN6O7P) contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 20.5, corresponding to approximately 20 ring(s) or double-bond equivalent(s). With a molecular weight of 772.80 g/mol, it falls into the high-molecular-weight range. 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.
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 | C40H46FN6O7P |
| Molecular Weight | 772.80 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 20.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
Recommended Standards
- Upadacitinib Impurity 216 (CAS CATO-C4X-2405216)
- 2'-Fluoro-5'-O-DMT-2'-deoxyinosine-3'-CE-phosphoramidite (CAS 2245842-16-2)
- Upadacitinib Impurity 211 (CAS CATO-C4X-2405211)
- Cefdinir Impurity 42 (CAS CATO-C4X-121042)
- 5-(1-Ethylpyrrolidin-2-yl)-2-(methylthio)pyridine (CAS 1352523-58-0)
- 2-Ethyl-6-Methyl-2-Chloroacetanilide (CAS 32428-71-0)
- Ribavirin- (CAS 1279035-36-7)
- (S)-(3-aminopyrrolidin-1-yl)(phenyl)methanone hydrochloride (CAS 330186-77-1)
- tert-Butyl (4-bromo-6-fluoropyridin-3-yl)carbamate (CAS 1514932-23-0)
- 6-((2-Methoxyethyl)(methyl)amino)pyridazine-3-carboxylic acid (CAS 1247904-24-0)
- 3,3-Difluoro-1-(4-methoxyphenyl)-5-phenylpyrrolidin-2-one (CAS 2118363-66-7)
- (S)-3-(4-Fluorophenyl)pyrrolidine hydrochloride (CAS 1384268-53-4)
- 1-(2,3-Dihydro-1h-inden-5-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 923106-38-1)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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