(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)(phenyl)methanone CAS 147644-07-3
| CAS No. | 147644-07-3 |
| Molecular Formula | C16H14O3 |
| Molecular Weight | 254.28 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.
(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)(phenyl)methanone (CAS 147644-07-3) is a high-purity analytical reference standard with the molecular formula C16H14O3 and a molecular weight of 254.28 g/mol.
Based on its molecular formula C16H14O3, (3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)(phenyl)methanone contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H14O3 |
| Molecular Weight | 254.28 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
Related Dihydro Standards
- 2-[3,4-Dihydro-1(2H)-quinolinyl]nicotinic acid (CAS 1017200-69-9)
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- 4-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzaldehyde (CAS 952182-92-2)
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Recommended Standards
- Ethyl 1-(2,5-dioxopyrrolidin-3-yl)piperidine-4-carboxylate (CAS 1455853-00-5)
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- Furan-3-yl(6-methoxynaphthalen-2-yl)methanol (CAS 1443326-39-3)
- 4-(((2-Fluorophenyl)sulfonyl)methyl)-1-methyl-1h-pyrazole (CAS 1484395-98-3)
- 2-(5-Chloro-6-oxo-4-thiomorpholinopyridazin-1(6H)-yl)acetic acid (CAS 1707394-29-3)
- (3S,5R)-5-fluoropiperidin-3-ol (CAS 1969288-77-4)
- 4-(4-Bromophenyl)-2-{[3-(diethylamino)propyl]amino}-4-oxobutanoic acid (CAS 1025085-92-0)
- 3-Bromo-1-(3,4-dihydroisoquinolin-2(1H)-yl)propan-1-one (CAS 380612-61-3)
- 2-(4-bromophenyl)-3'-trifluoromethylacetophenone (CAS 898784-55-9)
- Lasmiditan Impurity 28 (CAS CATO-C4X-247828)
- 1-{[4-(Methylthio)phenyl]sulfonyl}piperidine-4-carboxylic acid (CAS 1858249-77-0)
- Methyl 2-chlorooxazolo[4,5-c]pyridine-6-carboxylate (CAS 1260665-37-9)
- 1-[7-(Thiophen-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]-1H-pyrrole (CAS 338793-53-6)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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