7-Chloroquinolin-4(1H)-one CAS 23833-97-8
| CAS No. | 23833-97-8 |
| Molecular Formula | C9H6ClNO |
| Molecular Weight | 179.60 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.
7-Chloroquinolin-4(1H)-one (CAS 23833-97-8), molecular formula C9H6ClNO and molecular weight 179.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 7-Chloroquinolin-4(1H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 7-Chloroquinolin-4(1H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H6ClNO |
| Molecular Weight | 179.60 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloroquinolin Standards
- 5-Chloroquinolin-4(1H)-one (CAS 101774-49-6)
- 3-Chloroquinolin-8-ol (CAS 102878-83-1)
- 6-Chloroquinolin-5-ol (CAS 1236162-17-6)
- 7-Chloroquinolin-5-ol (CAS 1236162-22-3)
- 3-Chloroquinolin-5-ol (CAS 1236162-23-4)
- 2-Chloroquinolin-5-ol (CAS 124467-35-2)
- 7-Chloroquinolin-3-ol (CAS 1261454-55-0)
- 5-Chloroquinolin-3-ol (CAS 1261487-89-1)
Recommended Standards
- 7-Chloroisoquinolin-1(2H)-one (CAS 24188-74-7)
- 7-Chloroquinoline 1-oxide (CAS 22614-94-4)
- 7-Chloro-2-hydroxyquinoline (CAS 22614-72-8)
- 8-Chloroisoquinolin-3(2H)-one (CAS 51463-18-4)
- O-(4-Nitrobenzoyl)hydroxylamine 35657-36-4 MFCD11976095 SY029700 (CAS 35657-36-4)
- 3-Chloro-6-methoxy-N-phenylbenzo[b]thiophene-2-carboxamide (CAS 113424-98-9)
- (5-Mercapto-4-methyl-4H-1,2,4-triazol-3-yl)(phenyl)methanol (CAS 126808-96-6)
- 1-(5-Bromo-2-fluorophenyl)ethanol (CAS 552331-15-4)
- 2-Ethyl-1,3-dioxoisoindoline-5-carboxylic acid (CAS 137247-85-9)
- Umeclidinium Bromide-d7 (CAS CATO-C4X-133928)
- (3-Oxo-1-phenylpyrazolidin-4-yl)methyl acetate (CAS 99893-31-9)
- 5-(4-Bromobenzoyl)-2-phenyl-1,3-thiazole (CAS 52421-62-2)
- (3-Iodo-5-nitrophenyl)methanamine (CAS 1261555-06-9)
- semaglutide (CAS 782487-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com