10-Bromonaphtho[2,1-b]benzofuran CAS 1256544-20-3
| CAS No. | 1256544-20-3 |
| Molecular Formula | C16H9BrO |
| Molecular Weight | 297.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 10-Bromonaphtho[2,1-b]benzofuran.
10-Bromonaphtho[2,1-b]benzofuran (CAS 1256544-20-3), molecular formula C16H9BrO and molecular weight 297.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 10-Bromonaphtho[2,1-b]benzofuran (C16H9BrO) contains a hydroxyl group, an ether linkage, bromine 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 297.15 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 10-Bromonaphtho[2,1-b]benzofuran 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 | C16H9BrO |
| Molecular Weight | 297.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1990 |
| Halogen Content | Br-containing |
Related Bromonaphtho Standards
- 6-Bromonaphtho[2,3-b]benzofuran (CAS 1256544-24-7)
- 9-Bromonaphtho[2,1-b]benzofuran (CAS 1256544-27-0)
- 6-Bromonaphtho[1,2-b]benzofuran (CAS 1627727-21-2)
- 10-Bromonaphtho[1,2-b]benzofuran (CAS 1846601-95-3)
- 8-Bromonaphtho[2,1-b]benzofuran (CAS 1846601-97-5)
- 7-Bromonaphtho[1,2-b]benzofuran (CAS 2172929-14-3)
- 4-Bromonaphtho[1,8-de:4,5-d'e']bis([1,3]dioxine) (CAS 88051-30-3)
- 6-Bromonaphtho[2,3-d][1,3]dioxol-5-ol (CAS 180411-11-4)
Recommended Standards
- 4-Hydroxy-6-(trifluoromethoxy)-2-(trifluoromethyl)quinoline (CAS 125647-79-2)
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- Ethyl 2-(6-bromo-8-methylimidazo[1,2-a]pyridin-2-yl)acetate (CAS 1239741-70-8)
- tert-Butyl 3-bromo-1H-indazole-1-carboxylate (CAS 1257296-40-4)
- 2-(4-chlorophenyl)furan (CAS 17221-37-3)
- 2-Methylcyclopentane-1-carboxylic acid (CAS 5454-78-4)
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- (5,6-Dimethoxypyrazin-2-yl)methanamine (CAS 1112851-58-7)
- 1-(1z-hexadecenyl)-sn-glycero-3-phosphocholine 97802-53-4 (CAS 97802-53-4)
- Meropenem Impurity 52 (CAS CATO-C4X-130952)
- (R)-3-((4-Allyl-5-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)thio)-2-aminopropanoic acid (CAS 677729-66-7)
- 3-(tert-Butyl)-4-(2,6-diisopropoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole (CAS 2634687-76-4)
- 3-Nitro-α-(trifluoromethyl)benzenemethanol (CAS 453-77-0)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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