Papaverine Impurity 18 CAS CATO-C4X-206718
| CAS No. | CATO-C4X-206718 |
| Molecular Formula | C10H16NO5P |
| Molecular Weight | 261.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Papaverine Impurity 18 (CAS CATO-C4X-206718), a pharmacopoeial impurity reference standard (molecular formula C10H16NO5P, MW 261.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, Papaverine Impurity 18 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H16NO5P |
| Molecular Weight | 261.21 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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 |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 1 |
Related Papaverine Standards
- Papaverine Impurity 33 (CAS 23818-73-7)
- Papaverine Impurity 32 (CAS 608141-21-5)
- Papaverine Impurity 34 (CAS 41498-25-3)
- Papaverine impurity 47 (CAS CATO-C4X-206747)
- Papaverine Impurity 15 (CAS 57170-09-9)
- Papaverine Impurity 29 (CAS 23602-58-6)
- Papaverine Impurity 30 (CAS 57231-35-3)
- Papaverine Impurity 31 (CAS 35118-00-4)
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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)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com