Cefathiamidine Impurity 18 CAS CATO-C4X-133718
| CAS No. | CATO-C4X-133718 |
| Molecular Formula | C10H9BrN2O4S |
| Molecular Weight | 333.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Cefathiamidine Impurity 18 (CAS CATO-C4X-133718), a pharmacopoeial impurity reference standard (molecular formula C10H9BrN2O4S, MW 333.16 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefathiamidine Impurity 18 (C10H9BrN2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Cefathiamidine 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.
Physical & Chemical Properties
| Molecular Formula | C10H9BrN2O4S |
| Molecular Weight | 333.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefathiamidine Standards
- Cefathiamidine Impurity 16 (CAS 58197-02-7)
- Cefathiamidine Impurity 4 (CAS 1418224-75-5)
- Cefathiamidine Impurity 13 (CAS CATO-C4X-133713)
- Cefathiamidine Impurity 2 (CAS 26973-80-8)
- Cefathiamidine Impurity 11 (CAS CATO-C4X-133711)
- Cefathiamidine Impurity 3 (CAS 1417570-09-2)
- Cefathiamidine Impurity 7 (CAS CATO-C4X-13377)
- Cefathiamidine Impurity 15 (CAS CATO-C4X-133715)
Recommended Standards
- Olaparib Impurity 88 (CAS 1062292-60-7)
- N-(Benzyloxy)-N-(3-iodopropyl)acetamide (CAS 1003599-67-4)
- 6-Bromo-3-(2-fluorophenyl)-2-methylquinazolin-4(3H)-one (CAS 352346-59-9)
- tert-Butyl (2-iodo-4-methylphenyl)carbamate (CAS 1017279-68-3)
- Glipizide Impurity 15 (CAS 877-95-2)
- Etrasimod Impurity 74 (CAS CATO-C4X-321474)
- Ceritinib Impurity 79 (CAS CATO-C4X-104879)
- (S)-benzyl 2-((S)-(5-bromo-1H-indol-3-yl)(hydroxy)methyl)pyrrolidine-1-carboxylate (CAS 1415566-78-7)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (2-(piperidin-1-yl)pyridin-4-yl)boronate (CAS 1402166-06-6)
- 4-Amino-4-methylpentan-1-ol (CAS 85054-53-1)
- Trimethoxy((trimethylsilyl)ethynyl)silane (CAS 50727-84-9)
- 2-Isopropylisoindolin-1-one (CAS 65399-00-0)
- 5-Chloro-1,3-benzoxazol-7-amine (CAS 1225672-06-9)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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