Doxapram Impurity 5 CAS 957621-58-8
| CAS No. | 957621-58-8 |
| Molecular Formula | C13H19NO3S |
| Molecular Weight | 269.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Doxapram Impurity 5 (CAS 957621-58-8) is a certified pharmaceutical impurity reference standard with the molecular formula C13H19NO3S and a molecular weight of 269.36 g/mol.
Structurally, Doxapram Impurity 5 (C13H19NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 269.36 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Doxapram Impurity 5 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 | C13H19NO3S |
| Molecular Weight | 269.36 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Doxapram Standards
- Doxapram Impurity 15 (CAS CATO-C4X-197315)
- Doxapram impurity 43 (CAS CATO-C4X-197343)
- Doxapram Impurity 34 (CAS CATO-C4X-197334)
- Doxapram Impurity 37 (CAS CATO-C4X-197337)
- Doxapram Impurity 4 (CAS 3212-87-1)
- Doxapram Impurity 23 (CAS CATO-C4X-197323)
- Doxapram Impurity 19 (CAS 14563-97-4)
- Doxapram Impurity 17 (CAS CATO-C4X-197317)
Recommended Standards
- Pramipexole Impurity 86 (CAS CATO-C4X-110786)
- 3-(1,3,4-Thiadiazol-2-yl)-2-(thiophen-2-yl)thiazolidin-4-one (CAS 91260-06-9)
- Pramipexole Impurity 85 (CAS CATO-C4X-110785)
- 5-(Phenylthio)quinoline-8-thiol (CAS 100549-76-6)
- Imidapril Impurity 11 (CAS CATO-C4X-243911)
- Oseltamivir Impurity 90 (CAS CATO-C4X-172090)
- Bromhexine Impurity N1 (CAS 14860-48-1)
- 3-Acetamidothioanisole (CAS 2524-78-9)
- N6-D-Gluconoyl-L-lysine (CAS 94071-01-9)
- 2-Chloro-3-(difluoromethyl)-6-methylpyridine (CAS 1374659-36-5)
- N-(2-(4-aminophenoxy)ethyl)-6-chloropyridazin-3-amine (CAS 1272890-47-7)
- (5-(Tert-butyl)-2-(trifluoromethyl)pyridin-4-yl)boronic acid (CAS 2225170-96-5)
- N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N-methyl-4-propylbenzene-1-sulfonamide (CAS 1325306-95-3)
- Eosinophilotactic Peptide (CAS 61756-28-3)
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