Bendamustine Impurity 4 CAS 3543-73-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 3543-73-5 |
| Molecular Formula | C14H19N3O2 |
| Molecular Weight | 261.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Bendamustine Impurity 4 (CAS 3543-73-5) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H19N3O2. Molecular weight: 261.32 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H19N3O2 |
| Molecular Weight | 261.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Bendamustine Standards
- Bendamustine Impurity 34 (CAS CATO-C4X-127134)
- Bendamustine Impurity 10 (CAS 1221157-18-1)
- Bendamustine Amino Isopropyl Ester Impurity (CAS 1313020-26-6)
- Bendamustine Impurity 36 (CAS CATO-C4X-127136)
- Bendamustine Impurity 25 (CAS 91644-13-2)
- Bendamustine Impurity 29 (CAS 914626-62-3)
- Bendamustine Nitro Ethyl Ester Impurity (CAS 3543-72-4)
- Bendamustine Impurity 13 (CAS 1228552-02-0)
Recommended Standards
- Brexpiprazole Impurity 54 (CAS CATO-C4X-113154)
- N-Nitroso Fentanyl EP Impurity B (CAS CATO-C4X-134619)
- Tofacitinib Impurity 69 (CAS CATO-C4X-107969)
- Esmolol Impurity 28 DiHCl (CAS CATO-C4X-189128)
- Orforglipron impurity 118 (CAS CATO-C4X-3234118)
- Empagliflozin Impurity 52 (CAS CATO-C4X-106552)
- (S)-3-Amino-4-(4-cyanophenyl)butanoic acid (CAS 270065-88-8)
- 3-Methoxy-4-[(phenylsulfanyl)methyl]benzaldehyde (CAS 438532-51-5)
- 1-[3-(Trifluoromethyl)benzoyl]-1,4-diazepane (CAS 1016515-38-0)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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