Polymyxin Impurity 20 CAS 343979-23-7
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 343979-23-7 |
| Molecular Formula | C56H98N16O14 |
| Molecular Weight | 1219.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Polymyxin Impurity 20 (CAS 343979-23-7) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C56H98N16O14. Molecular weight: 1219.48 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C56H98N16O14 |
| Molecular Weight | 1219.48 g/mol |
| Purity | >90% |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 16 |
Related Polymyxin Standards
- Polymyxin Impurity 26 (CAS CATO-C4X-225526)
- Polymyxin B1-I (CAS 811435-10-6)
- Polymyxin B1 (CAS 4135-11-9)
- Polymyxin Impurity 22 (CAS CATO-C4X-225522)
- Polymyxin Impurity 23 (CAS CATO-C4X-225523)
- Polymyxin Impurity 32 (CAS CATO-C4X-225532)
- Polymyxin Impurity 31 (CAS CATO-C4X-225531)
- Polymyxin B3 (CAS 71140-58-4)
Recommended Standards
- Bis-PEG25-acid (CAS 2567200-14-8)
- Monofucosyllacto-N-hexaose III (CAS 96656-34-7)
- Ceftazidime impurity 122 (CAS CATO-C4X-1212122)
- Prasugrel Hydrochloride EP Impurity G (CAS 1391054-37-7)
- Cholesterol Impurity 16 (CAS 632-32-6)
- 3-Chloro-5-(p-tolyl)-1,2,4-triazine (CAS 1368414-41-8)
- 6-(trifluoromethyl)-1,3,5-triazine-2,4-diamine (CAS 705-25-9)
- N-(2-(3-fluorophenoxy)ethyl)-2-methylpropan-1-amine (CAS 1225504-01-7)
- Methyl 1-cyclopentyl-7-cyclopropyl-4-oxo-2-thioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-5-carboxylate (CAS 933852-53-0)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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