Verapamil Impurity 34 CAS CATO-C4X-177834
| CAS No. | CATO-C4X-177834 |
| Molecular Formula | C27H38N2O5 |
| Molecular Weight | 470.60 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.
Verapamil Impurity 34 (CAS CATO-C4X-177834) is a certified pharmaceutical impurity reference standard with the molecular formula C27H38N2O5 and a molecular weight of 470.60 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Verapamil Impurity 34 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 470.60 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 | C27H38N2O5 |
| Molecular Weight | 470.60 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Verapamil Standards
- Verapamil Impurity 43 (CAS 94219-84-8)
- (R)-Verapamil-D6 (isopropyl-1,1,1,3,3,3-D6) (CAS 1796641-49-0)
- Verapamil EP Impurity J HCl (CAS 67812-42-4)
- Verapamil EP Impurity P (CAS 2086275-13-8)
- (R)-(+)-Verapamil HCl (CAS 38321-02-7)
- Verapamil EP Impurity O (CAS 959011-16-6)
- Verapamil (CAS 52-53-9)
- Verapamil EP Impurity H (CAS 67018-83-1)
Recommended Standards
- Beclometasone Dipropionate Monohydrate EP Impurity Q (CAS CATO-C4X-147417)
- Esmolol Impurity 74 (CAS CATO-C4X-189174)
- Bazedoxifene (CAS 198481-32-2)
- Ciclesonide Impurity 14 (CAS CATO-C4X-320114)
- Alprostadil EP Impurity F (CAS 21003-46-3)
- Urapidil Impurity 38 (CAS CATO-C4X-192438)
- Deucravacitinib Impurity 16 (CAS 2936652-48-9)
- 1-Phenyl-3-(pyridin-2-ylmethyl)thiourea (CAS 75160-54-2)
- 1-(4-Hydroxy-4-(((4-methoxyphenyl)sulfonyl)methyl)piperidin-1-yl)-3-methylbutan-1-one (CAS 865659-44-5)
- 1-(4-Fluorophenyl)-5-methyl-N-(thiazol-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 915874-77-0)
- 2-Ethyl-4,6-difluorobenzofuran-3(2h)-one (CAS 1343048-10-1)
- 3-Hydroxybenzo[b]thiophene 1,1-dioxide (CAS 61670-15-3)
- 4-Oxo-3,4-dihydropyrido[3,2-d]pyrimidine-7-carbaldehyde (CAS 2847895-23-0)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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