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
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 821-10-3 |
| Molecular Formula | C4H4Cl2 |
| Molecular Weight | 122.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H4Cl2. Molecular weight: 122.98 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
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 |
Related Butyne Standards
- 1-Butyne, 4-(methylsulfonyl)- (CAS 192989-95-0)
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- 1-Phenyl-1-butyne-3,3,4,4,4-d5 (CAS 1219803-38-9)
- 4-phenyl-1-butyne (CAS 16520-62-0)
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Recommended Standards
- Cis-3,4-dichlorocyclobutene (CAS 2957-95-1)
- Olaparib Impurity 23 (CAS 75-26-3)
- 3,4-Dichlorocyclobut-1-ene (CAS 41326-64-1)
- 3-[(pyrrolidin-3-yloxy)methyl]pyridine dihydrochloride (CAS 1376315-81-9)
- 2-(4-Ethyl-5-mercapto-4H-[1,2,4]triazol-3-yl)-N-(4-methoxy-phenyl)-acetamide (CAS 792944-68-4)
- 5-Amino-2,4-dichloropyridine (CAS 7321-93-9)
- 4-Bromo-2-ethoxy-6-fluoroaniline (CAS 2091027-68-6)
- 2-(tert-Butoxy)-6-ethylphenol (CAS 1243378-50-8)
- Methyl (3R,4S)-4-(6-fluoro-1-hydroxy-2,3-dihydro-1H-inden-5-yl)-2-oxopyrrolidine-3-carboxylate (CAS 1784747-71-2)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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