2-[(3S,4S,5S,6R)-7-Hydroxy-4,6-dimethoxy-3,5-dimethylheptyl]-5,7-dimethoxy-8-(methoxymethoxy)-3-methyl-2,3-dihydro-4H-1-benzopyran-4-one CAS 276690-22-3
| CAS No. | 276690-22-3 |
| Molecular Formula | C25H40O9 |
| Molecular Weight | 484.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-[(3S,4S,5S,6R)-7-Hydroxy-4,6-dimethoxy-3,5-dimethylheptyl]-5,7-dimethoxy-8-(methoxymethoxy)-3-methyl-2,3-dihydro-4H-1-benzopyran-4-one (CAS 276690-22-3) is a high-purity analytical reference standard with the molecular formula C25H40O9 and a molecular weight of 484.58 g/mol.
Based on its molecular formula C25H40O9, 2-[(3S,4S,5S,6R)-7-Hydroxy-4,6-dimethoxy-3,5-dimethylheptyl]-5,7-dimethoxy-8-(methoxymethoxy)-3-methyl-2,3-dihydro-4H-1-benzopyran-4-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 484.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C25H40O9 |
| Molecular Weight | 484.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Recommended Standards
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- Ivabradine impurity N1 (CAS 2511244-96-3)
- N-[6-(1-hydroxy-1-methyl-ethyl)-2-(2-methylsulfonylethyl)indazol-5-yl]-6-(trifluoromethyl)pyridine-2-carboxamide (CAS 1931994-81-8)
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- 5-(Ethylsulfonyl)-4-(2-fluorophenyl)thiazol-2-amine (CAS 1708445-07-1)
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- n-(2-Ethylphenyl)tetrahydrothiophen-3-amine (CAS 1020958-76-2)
- 3-(4-Amino-2-methoxyphenyl)-2H-chromen-2-one (CAS 335206-96-7)
- 4-(Difluoromethyl)-3-methyl-5-nitropyridine-2-sulfonamide (CAS 1807000-39-0)
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- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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