Tirzepatide Impurity 18 CAS CATO-C4X-324018
| CAS No. | CATO-C4X-324018 |
| Molecular Formula | C67H107N5O16 |
| Molecular Weight | 1238.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tirzepatide Impurity 18 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.
Tirzepatide Impurity 18 (CAS CATO-C4X-324018) is a certified pharmaceutical impurity reference standard with the molecular formula C67H107N5O16 and a molecular weight of 1238.59 g/mol.
Tirzepatide Impurity 18 (C67H107N5O16) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C67H107N5O16 |
| Molecular Weight | 1238.59 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 |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Tirzepatide Standards
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
Recommended Standards
- Gold, tetrakis(2,3,4,5,6-pentafluorophenyl)bis(tetrahydrothiophene)di-, (Au-Au), stereoisomer (CAS 938163-22-5)
- Ceftazidime impurity 115 (CAS CATO-C4X-1212115)
- Perfluorotetracosane (CAS 1766-41-2)
- Platyconic acid A (CAS 68051-23-0)
- Lenvatinib Impurity 31 (CAS 417722-95-3)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
- Apalutamide Impurity 49 (CAS CATO-C4X-274949)
- 4,4,4-Trifluoro-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)butanoic Acid (CAS 871478-30-7)
- 6-Bromo-2-piperazin-1-yl-quinoline (CAS 124782-95-2)
- 5-Amino-n-(3-fluoro-4-methoxybenzyl)-3,4-dimethylthieno[2,3-c]pyridazine-6-carboxamide (CAS 1451994-10-7)
- ethyl cis-2-(tert-butoxycarbonylamino)cyclopropanecarboxylate (CAS 1421676-91-6)
- 2-(4-Methyl-1,4-diazepan-1-yl)cyclopentan-1-ol (CAS 1216048-18-8)
- 1-(3-amino-6-fluoro-2-methylphenyl)imidazolidin-2-one (CAS 1803594-01-5)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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