Spiro[4H-cyclohepta[2,1-a:3,4-a′]dinaphthalene-4,1′-[2,4]cyclopentadiene], 3,5-dihydro-, (S)- CAS 125443-42-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 125443-42-7 |
| Molecular Formula | C27H20 |
| Molecular Weight | 344.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Spiro[4H-cyclohepta[2,1-a:3,4-a′]dinaphthalene-4,1′-[2,4]cyclopentadiene], 3,5-dihydro-, (S)- (CAS 125443-42-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C27H20. Molecular weight: 344.45 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C27H20 |
| Molecular Weight | 344.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
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Recommended Standards
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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