3-Bromo-8,9-dihydrooxepino[4,3-b]pyridin-5(7H)-one CAS 2387601-27-4
| CAS No. | 2387601-27-4 |
| Molecular Formula | C9H8BrNO2 |
| Molecular Weight | 242.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Bromo-8,9-dihydrooxepino[4,3-b]pyridin-5(7H)-one (C9H8BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 242.07 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Bromo-8,9-dihydrooxepino[4,3-b]pyridin-5(7H)-one (CAS 2387601-27-4), molecular formula C9H8BrNO2 and molecular weight 242.07 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C9H8BrNO2 |
| Molecular Weight | 242.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-Bromo-6,7-dihydrooxepino[3,4-b]pyridin-9(5H)-one (CAS 2387600-31-7)
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- 2-Cyano-N-(2,5-dimethylphenyl)-3-(4-methoxyphenyl)propanamide (CAS 1260953-61-4)
- 3-Iodo-4-(trifluoromethoxy)benzonitrile (CAS 1365988-15-3)
- 4-(5-Tetrazolyl)pyridine (CAS 14389-12-9)
- 1-benzyl-1H-1,3-benzodiazole-5-carboxylic acid (CAS 284673-18-3)
- 3-(2-Hydroxy-2-(4-methoxyphenyl)vinyl)quinoxalin-2(1H)-one (CAS 66394-50-1)
- 1-[3-(hydroxymethyl)pyrrolidin-1-yl]prop-2-en-1-one (CAS 1248611-91-7)
- 6-Phenylimidazo[2,1-b]thiazole-5-carbonitrile (CAS 83253-35-4)
- (R)-1-(3-fluorophenyl)butan-1-amine (CAS 698378-60-8)
- Butyl Mandelate (CAS 14007-02-4)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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