Cis-3,4-dichlorocyclobutene CAS 2957-95-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2957-95-1 |
| Molecular Formula | C4H4Cl2 |
| Molecular Weight | 122.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cis-3,4-dichlorocyclobutene (CAS 2957-95-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H4Cl2. Molecular weight: 122.98 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H4Cl2 |
| Molecular Weight | 122.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Recommended Standards
- 3,4-Dichlorocyclobut-1-ene (CAS 41326-64-1)
- 821-10-3 2-Butyne, 1,4-dichloro- 1,4-Dichlorobut-2-yne 4-01-00-00973 (Beilstein Handbook Reference) AI3-26930 BRN 0635740 1,4-Dichlorobutyne 1,4-Dichloro-2-butyne EINECS 212-474-8 NSC 30603 (CAS 821-10-3)
- 2,3-dichlorobuta-1,3-diene (CAS 1653-19-6)
- 1-Amino-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 870679-59-7)
- methyl 1,6-dimethylpyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1855889-86-9)
- (E)-4-Butoxy-1,1,1-trifluoro-3-buten-2-one (CAS 109317-78-4)
- 2-((3,5-Dichlorophenoxy)methyl)-1,3-dioxolane (CAS 1226303-59-8)
- Trospium Chloride EP Impurity B (CAS 63516-30-3)
- H-D-Phe-Homopro-Arg-pNA · 2 acetate (CAS 386253-60-7)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
Why CATO?
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