Dinaphtho[2,1-b;2',3'-d]furan" CAS 204-91-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 204-91-1 |
| Molecular Formula | C20H12O |
| Molecular Weight | 268.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Dinaphtho[2,1-b;2',3'-d]furan" (CAS 204-91-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H12O. Molecular weight: 268.31 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H12O |
| Molecular Weight | 268.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dinaphtho Standards
- Dinaphtho[2,1-b:1,2-d]furan (CAS 194-63-8)
- Dinaphtho[1,2-b:2',1'-d]furan (CAS 239-69-0)
- Dinaphtho[1,2-b;1',2'-d]furan" (CAS 207-93-2)
- Dinaphtho[1,2-b;2',3'-d]furan" (CAS 239-90-7)
- Dinaphtho[2,3-b;2',3'-d]furan" (CAS 242-51-3)
- Dinaphtho[2,1-b;1',2'-d]thiophene" (CAS 194-65-0)
- Dinaphtho[2,1-b:2',3'-d]furan-8,13-dione (CAS 5397-99-9)
- 935280-42-5 dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene (CAS 935280-42-5)
Recommended Standards
- Ethyl 2-(2-oxo-2-phenylethyl)benzoate (CAS 898776-66-4)
- Ethyl 3-(((tert-butoxycarbonyl)amino)methyl)-1H-pyrrole-2-carboxylate (CAS 2052290-63-6)
- Diethyl 1-amino-5-isopropyl-1H-pyrrole-2,3-dicarboxylate (CAS 938191-11-8)
- tert-butyl (3R)-3-[3-bromo-4-carbamoyl-5-(methylamino)pyrazol-1-yl]pyrrolidine-1-carboxylate (CAS 2173637-25-5)
- 4-(3-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)propyl)morpholine (CAS 910462-33-8)
- 3-Chloro-5-methoxybenzisoxazole (CAS 16263-58-4)
- Avibactam Impurity 135 (CAS CATO-C4X-1348135)
- 3-(3,4-Difluorophenyl)acryloyl chloride (CAS 1043546-64-0)
- 2-(phenylamino)butan-1-ol (CAS 51170-06-0)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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 13829788188 / jacky.chen@cato-chem.com