S-Doxazosin CAS 104874-86-4
| CAS No. | 104874-86-4 |
| Molecular Formula | C23H25N5O5 |
| Molecular Weight | 451.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
S-Doxazosin (CAS 104874-86-4) is a high-purity analytical reference standard with the molecular formula C23H25N5O5 and a molecular weight of 451.48 g/mol.
S-Doxazosin (C23H25N5O5) contains a flavonoid core, 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.
CATO manufactures S-Doxazosin 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 | C23H25N5O5 |
| Molecular Weight | 451.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 5 |
Related S Standards
- R-Doxazosin (CAS 70918-17-1)
- Doxazosin impurity 21 (CAS CATO-C4X-162321)
- Doxazosin Impurity 11 (CAS 102932-25-2)
- Doxazosin Impurity 12 (CAS 102932-26-3)
- Doxazosin Impurity 13 (CAS 102932-28-5)
- Doxazosin Impurity 14 (CAS 102932-29-6)
- Doxazosin Impurity 22 (CAS CATO-C4X-162322)
- Doxazosin EP Impurity C (CAS 617677-53-9)
Recommended Standards
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- Gadoxetate Impurity 26 (CAS CATO-C4X-261826)
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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)
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