3,4-Dichloro-3-cyclobutene-1,2-dione CAS 2892-63-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2892-63-9 |
| Molecular Formula | C4H2Cl2O2 |
| Molecular Weight | 152.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dichloro-3-cyclobutene-1,2-dione (CAS 2892-63-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H2Cl2O2. Molecular weight: 152.96 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H2Cl2O2 |
| Molecular Weight | 152.96 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
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Recommended Standards
- Fumaryl chloride (CAS 627-63-4)
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- 1,1,1,3,3,3-Hexafluoro-2-(3-iodophenyl)propan-2-ol (CAS 2366994-34-3)
- (R)-2,3-dihydroxy-2-methylpropyl 4-methylbenzenesulfonate (CAS 133868-47-0)
- 2-(Chloromethyl)-5-(methoxymethyl)pyridine (CAS 1469993-03-0)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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