2,3,6,7-Tetrachloro-9H-xanthene CAS 118516-13-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 118516-13-5 |
| Molecular Formula | C13H6Cl4O |
| Molecular Weight | 320.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,3,6,7-Tetrachloro-9H-xanthene (CAS 118516-13-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C13H6Cl4O. Molecular weight: 320.00 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C13H6Cl4O |
| Molecular Weight | 320.00 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
Related Tetrachloro Standards
- 2',3',4,5'-Tetrachloro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1361705-72-7)
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Recommended Standards
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- Methyl 3-(5-(((cyclohexylcarbamoyl)oxy)methyl)furan-2-yl)thiophene-2-carboxylate (CAS 320417-78-5)
- [[1,1′-Biphenyl]-2-ylbis(1,1-dimethylethyl)phosphine][1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamidato-κN]gold (CAS 1036000-94-8)
- 2-Chloro-1,4-difluoro-3-methoxybenzene (CAS 261762-37-2)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
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