Drotaverin Impurity 52 CAS CATO-C4X-243552
| CAS No. | CATO-C4X-243552 |
| Molecular Formula | C18H19NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Drotaverin Impurity 52 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Drotaverin Impurity 52 (CAS CATO-C4X-243552) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19NO4HBr and a molecular weight of 394.26 g/mol.
Based on its molecular formula C18H19NO4HBr, Drotaverin Impurity 52 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 394.26 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 | C18H19NO4 HBr |
| Molecular Weight | 394.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Drotaverin Standards
- Drotaverin Impurity 48 (CAS 1536475-50-9)
- Drotaverin Impurity N2 (CAS 21088-15-3)
- Drotaverin Impurity 50 (CAS 5409-31-4)
- Drotaverin Impurity N1 (CAS 56046-20-9)
- Drotaverin Impurity 49 (CAS 854869-48-0)
- Drotaverin Impurity 45 (CAS 855199-57-4)
- Drotaverin Impurity 37 HBr (CAS CATO-C4X-243537)
- Drotaverin Impurity 38 (CAS CATO-C4X-243538)
Recommended Standards
- Oclacitinib Impurity 16 (CAS 2124221-18-5)
- Salbutamol Impurity 219 (CAS CATO-C4X-1176219)
- Axitinib Impurity 28 (CAS CATO-C4X-107128)
- 5-butylisoxazol-3-amine (CAS 119409-98-2)
- 3-Amino-2-hydroxy-3-phenylpropanamide hydrochloride (CAS 1956332-39-0)
- n-Ethyl-2-(thieno[2,3-d]pyrimidin-4-ylamino)propanamide (CAS 1025754-63-5)
- N-(2-acetylphenyl)-4-bromobenzenesulfonamide (CAS 303152-39-8)
- 8-(tert-Butyl)-6-chloro-1h-purine (CAS 50609-17-1)
- Rupatadine Impurity 26 (CAS CATO-C4X-102726)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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