8-Chloronaphtho[2,1-b]benzofuran CAS 1647008-46-5
| CAS No. | 1647008-46-5 |
| Molecular Formula | C16H9ClO |
| Molecular Weight | 252.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Chloronaphtho[2,1-b]benzofuran is closely related to a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
8-Chloronaphtho[2,1-b]benzofuran (CAS 1647008-46-5), molecular formula C16H9ClO and molecular weight 252.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 8-Chloronaphtho[2,1-b]benzofuran (C16H9ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 252.70 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H9ClO |
| Molecular Weight | 252.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
Related Chloronaphtho Standards
- 9-Chloronaphtho[1,2-b]benzofuran (CAS 1416620-13-7)
- 10-Chloronaphtho[2,1-b]benzofuran (CAS 2140822-95-1)
- 1-Chloronaphtho[2,3-b]benzofuran (CAS 2170644-12-7)
- 4-Chloronaphtho[2,3-b]benzofuran (CAS 2271091-81-5)
- 7-Chloronaphtho[1,2-b]benzofuran (CAS 2411141-56-3)
- 8-Chloronaphtho[1,2-b]benzofuran (CAS 2103931-84-4)
- 1-Chloronaphtho[2,1-b]thiophene-2-carbonitrile (CAS 886360-79-8)
- Methyl 1-chloronaphtho[2,1-b]thiophene-2-carboxylate (CAS 85992-30-9)
Recommended Standards
- (R)-4-(6-Chloro-1H-imidazo[4,5-c]pyridin-4-yl)-3-methylmorpholine (CAS 1639975-71-5)
- tert-Butyl 6-chloro-1H-pyrrolo[3,2-c]pyridine-1-carboxylate (CAS 1649468-62-1)
- Ethyl 4-chloro-1,6-dimethyl-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (CAS 1638772-22-1)
- 4-Chloro-2-(2-methoxyethyl)-6-(1-methyl-1H-pyrazol-4-yl)pyrimidine (CAS 1708199-18-1)
- 2-(2-Amino-5-(bromomethyl)-6-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805375-60-3)
- [2,2':6',2''-Terpyridine]-6-carbaldehyde (CAS 108295-42-7)
- Methyl 5-bromo-6-fluoro-1H-indazole-3-carboxylate (CAS 1360965-16-7)
- N-(Furan-2-ylmethyl)-5-methyl-N-(thiophen-3-ylmethyl)isoxazole-4-carboxamide (CAS 1448052-40-1)
- Benzyl 1-(4-fluorophenyl)cyclopropylcarbamate (CAS 1255574-62-9)
- 3-(2-Methylbutyl)azetidin-3-ol (CAS 1464154-84-4)
- Tert-butyl (2-oxo-1-azaspiro[4.5]Decan-8-yl)carbamate (CAS 1290625-48-7)
- 1-(3-Fluoro-5-methylphenyl)cyclopentanecarboxylic Acid (CAS 1785378-25-7)
- 2-(2-(Piperidin-2-yl)ethyl)pyridine (CAS 6312-04-5)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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