Bortezomib Impurity 44 CAS 78-77-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 78-77-3 |
| Molecular Formula | C4H9Br |
| Molecular Weight | 137.02 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Bortezomib Impurity 44 (CAS 78-77-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C4H9Br. Molecular weight: 137.02 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H9Br |
| Molecular Weight | 137.02 g/mol |
| Purity | >95% |
| 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) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Bortezomib Standards
- Bortezomib Impurity 42 (CAS 89-01-0)
- Bortezomib Impurity 21 (CAS 18680-27-8)
- Bortezomib Impurity N17 (CAS 84110-40-7)
- Bortezomib Impurity 77 (CAS 103435-88-7)
- Bortezomib Impurity 43 (CAS 513-36-0)
- Bortezomib Impurity 15 (CAS 1259365-04-2)
- Bortezomib Impurity 41 (CAS 4664-57-7)
- Bortezomib Impurity N32 (CAS 84110-34-9)
Recommended Standards
- 2-Bromo-2-methylpropane (CAS 507-19-7)
- 4,4,4-Trifluoro-3-oxobutanenitrile (CAS 110234-68-9)
- 2-Bromobutane (CAS 78-76-2)
- Vazegepant Impurity 14 (CAS 928014-62-4)
- Avatrombopag Impurity 54 (CAS 28989-50-6)
- Mesityldiphenylphosphine (CAS 5931-56-6)
- (S)-1-(4-bromo-3-fluorophenyl)-2-methoxyethan-1-amine (CAS 1270183-92-0)
- (3E)-3-{[(4-chlorophenyl)methoxy]imino}-1-{4-[(2,4-dichlorophenyl)methoxy]phenyl}propan-1-one (CAS 477889-48-8)
- 1-(6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperidin-4-ol (CAS 1313040-65-1)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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