Bortezomib Impurity 28 CAS 205393-22-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 205393-22-2 |
| Molecular Formula | C29H39BN4O4 |
| Molecular Weight | 518.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Bortezomib Impurity 28 (CAS 205393-22-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C29H39BN4O4. Molecular weight: 518.46 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C29H39BN4O4 |
| Molecular Weight | 518.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 4 |
Related Bortezomib Standards
- Bortezomib Impurity 55 (CAS 1375004-39-9)
- Bortezomib Impurity 62 (CAS CATO-C4X-107262)
- Bortezomib D-Mannitol Ester (CAS 444576-08-3)
- Bortezomib Impurity 18 (CAS CATO-C4X-107218)
- Bortezomib Impurity 26 (CAS CATO-C4X-107226)
- Bortezomib Impurity 27 Sodium Salt (CAS 16480-57-2)
- Bortezomib Impurity 51 (CAS 1194235-14-7)
- Bortezomib Impurity N47 (CAS 514820-48-5)
Recommended Standards
- Methyl 3,6-Di-O-(α-D-mannopyranosyl)-α-D-mannopyranoside (CAS 68601-74-1)
- CiceritolDISCONTINUED (CAS 88167-26-4)
- ((2R,3S,4S,5R,6R)-6-(((2R,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)methyl 3-(4-hydroxy-3-methoxyphenyl)acrylate (CAS 118230-77-6)
- Bumetanide Impurity 53 (CAS CATO-C4X-198653)
- Hydrocortisone Impurity 31 (CAS 10184-70-0)
- (3aS,6aS)-5-Boc-1H-hexahydropyrrolo[3,4-b]pyrrole (CAS 370882-55-6)
- (S)-3-Benzyl-1-methyl-piperazine dihydrochloride (CAS 1965305-43-4)
- 3-(1,2,3,4-Tetrahydro-9H-carbazol-9-yl)propanenitrile (CAS 24115-51-3)
- 2-(Chloromethyl)-4,5-dimethoxy-3-methylpyridine hydrochloride (CAS 102625-85-4)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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