Papaverine Impurity 34 CAS 41498-25-3
| CAS No. | 41498-25-3 |
| Molecular Formula | C19H19NO3 |
| Molecular Weight | 309.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 309.36 g/mol gives Papaverine Impurity 34 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Papaverine Impurity 34 (CAS 41498-25-3), a pharmacopoeial impurity reference standard (molecular formula C19H19NO3, MW 309.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H19NO3, Papaverine Impurity 34 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 309.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C19H19NO3 |
| Molecular Weight | 309.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related Papaverine Standards
- Papaverine Impurity 32 (CAS 608141-21-5)
- 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)
- Papaverine Impurity 35 (CAS 16637-56-2)
- Papaverine Impurity 36 (CAS 82463-46-5)
Recommended Standards
- Tetracaine Impurity 42 (CAS CATO-C4X-192342)
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- Tegoprazan Impurity 12 (CAS 1640981-20-9)
- Imidapril Impurity 11 (CAS CATO-C4X-243911)
- Tizanidine Impurity 48 (CAS CATO-C4X-144548)
- Rupatadine impurity 11 (CAS CATO-C4X-102711)
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- 4-(Benzyloxy)-2-chloroquinoline (CAS 1147107-89-8)
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- 1-(3-Chlorobenzyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 304859-17-4)
- (1-(Isopropylsulfonyl)piperidin-4-yl)methanol (CAS 1178653-66-1)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com