7-Bromo-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one CAS 917878-65-0
| CAS No. | 917878-65-0 |
| Molecular Formula | C14H7BrClNO |
| Molecular Weight | 320.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Bromo-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 7-Bromo-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one (CAS 917878-65-0), a certified reference material (molecular formula C14H7BrClNO, MW 320.57 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H7BrClNO, 7-Bromo-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.57 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.
As a certified reference material (CRM), 7-Bromo-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H7BrClNO |
| Molecular Weight | 320.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4-Cyclopropoxy-5-isopropyl-2-nitropyridine (CAS 1243349-18-9)
- 6-(4-Fluorophenyl)-6-oxohexanoic acid (CAS 343319-07-3)
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- Tert-butyl (3S,4S)-4-(aminomethyl)-3-methoxypiperidine-1-carboxylate (CAS 2165437-41-0)
- (Gly1,Ser3·22,Gln?·3?,Thr?,Arg1?,Tyr21,Ala23·31,Aib32)-Pancreatic Polypeptide (human) (CAS 313988-89-5)
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