Polymyxin Impurity 39 TFA CAS CATO-C4X-225539
| CAS No. | CATO-C4X-225539 |
| Molecular Formula | C56H98N16O13 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Polymyxin Impurity 39 TFA is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Polymyxin Impurity 39 TFA (CAS CATO-C4X-225539) is a certified pharmaceutical impurity reference standard with the molecular formula C56H98N16O13C2HF3O2 and a molecular weight of 1317.52 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Polymyxin Impurity 39 TFA is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1317.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Polymyxin Impurity 39 TFA under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C56H98N16O13 5*C2HF3O2 |
| Molecular Weight | 1317.52 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 16 |
Related Polymyxin Standards
- Polymyxin B - API Standards (CAS 1404-26-8)
- Polymyxin B Sulfate (CAS 1405-20-5)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
- Polymyxin Impurity 56 X Trifluoroacetate (CAS 3034660-94-8 (free base))
- Polymyxin E2 (CAS 30387-41-8)
- Polymyxin Impurity 20 (CAS 343979-23-7)
- Polymyxin B2 (CAS 34503-87-2)
- Polymyxin B2 XTFA Salt (CAS 34503-87-2 (free base))
Recommended Standards
- Eldecalcitol Impurity 22 (CAS CATO-C4X-214022)
- Vilazodone Impurity 3 (CAS CATO-C4X-13553)
- Cefotaxime Impurity 38 (CAS CATO-C4X-120138)
- 4-Bromo-3-chloro-1H-pyrrolo[2,3-b]pyridine (CAS 943323-92-0)
- tert-Butyl 2-bromo-6,7-dihydrofuro[3,2-c]pyridine-5(4H)-carboxylate (CAS 1211538-77-0)
- Amicarbazone (CAS 129909-90-6)
- 2-chloro-N'-(1,4,5,6-tetrahydropyrimidin-2-yl)-6-(2,2,2-trifluoroethoxy)isonicotinohydrazide (CAS 680213-94-9)
- 5-Methoxy-3,6-dimethylpyrazin-2-ol (CAS 100868-54-0)
- tert-Butyl 3-ethylmorpholine-4-carboxylate (CAS 1495669-80-1)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
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 18665070610 / Nicole.chen@cato-chem.com