Sumatriptan EP impurity A CAS 545338-89-4
| CAS No. | 545338-89-4 |
| Molecular Formula | C27H37N5O2S |
| Molecular Weight | 495.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Sumatriptan EP impurity A 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.
Sumatriptan EP impurity A (CAS 545338-89-4) is a certified pharmaceutical impurity reference standard with the molecular formula C27H37N5O2S and a molecular weight of 495.68 g/mol.
Sumatriptan EP impurity A (C27H37N5O2S) contains a steroid core, an amide group, a sulfone 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.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C27H37N5O2S |
| Molecular Weight | 495.68 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Sumatriptan Standards
- Sumatriptan EP Impurity H (CAS 1391052-59-7)
- Sumatriptan Impurity 2 (CAS 350671-15-7)
- Sumatriptan impurity 4 (CAS CATO-C4X-17574)
- Sumatriptan impurity 5 (CAS 2250254-19-2)
- Sumatriptan RC 2 (CAS 151140-66-8)
- Sumatriptan EP Impurity C (CAS 1797905-62-4)
- Sumatriptan impurity 3 (CAS CATO-C4X-17573)
- Sumatriptan EP Impurity D (CAS 212069-94-8)
Recommended Standards
- NVS-CECR2-1 (CAS 1992047-61-6)
- 1-tert-Butyl 20-(2,5-dioxopyrrolidin-1-yl) icosanedioate (CAS 1119061-69-6)
- 3-Ethyl 5-(phenylmethyl)-1,4-dihydro-2-methyl-6-phenyl-4-(phenylethynyl)-3,5-Pyridinedicarboxylic Acid Ester (CAS 185222-90-6)
- Ursodeoxycholic acid impurity 29 (CAS CATO-C4X-142229)
- Latamoxef Impurity 17 (CAS CATO-C4X-179817)
- Olodaterol Impurity 11 (CAS CATO-C4X-194311)
- Somatostatin Impurity 4 (CAS CATO-C4X-23504)
- Boc-D-Phe(3,4-DiF)-OH (CAS 145232-34-4)
- 2-(Phenylcarbamoyl)phenyl 2-(2,4-Dichlorophenoxy)propanoate (CAS 1385694-59-6)
- 2-Amino-2-[3-(trifluoromethyl)phenyl]propanamide (CAS 1183104-54-2)
- 4-tert-Butyldimethylsilyl-5'-chloro-4a'-hydroxy simvastatin (CAS 123852-10-8)
- 2-Oxo-2-((1-phenylethyl)amino)ethyl 2-(naphtho[2,1-b]furan-1-yl)acetate (CAS 732294-40-5)
- Ceftibuten Impurity 8 (CAS 97519-40-9)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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