Verapamil Impurity 23 CAS 36622-28-3
| CAS No. | 36622-28-3 |
| Molecular Formula | C27H38N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 491.07 g/mol gives Verapamil Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Verapamil Impurity 23 (CAS 36622-28-3) is a certified pharmaceutical impurity reference standard with the molecular formula C27H38N2O4HCl and a molecular weight of 491.07 g/mol.
Structurally, Verapamil Impurity 23 (C27H38N2O4HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 491.07 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures Verapamil Impurity 23 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 | C27H38N2O4 HCl |
| Molecular Weight | 491.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Verapamil Standards
- Verapamil Impurity N1 (CAS 102201-30-9)
- Verapamil Impurity 38 (CAS 114847-42-6)
- Verapamil D6 HCl (CAS 1185032-80-7)
- Verapamil-d7 Hydrochloride (CAS 1188265-55-5)
- Verapamil EP Impurity G (CAS 120-14-9)
- Verapamil EP Impurity J-D7 HCl (CAS 1216413-74-9)
- Verapamil EP Impurity B HCl (CAS 13078-76-7)
- (S)-(-)-Verapamil-d6 Hydrochloride (CAS 1329611-24-6)
Recommended Standards
- Ertapenem Impurity C28 (CAS 147266-92-0)
- Mycophenolate Impurity 23 (CAS CATO-C4X-151523)
- Hesperidin Impurity 6（Mixture of diastereomers） (CAS CATO-C4X-33276)
- (3-Methoxyphenyl)(4-methylphenyl)methanone (CAS 82520-37-4)
- Methyl 3-(benzo[d][1,3]dioxol-5-yl)acrylate (CAS 16386-34-8)
- (2R,3S)-3-hydroxy-2-(4-methoxyphenyl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one (CAS 30825-34-4)
- Oxamisole (CAS 99258-56-7)
- 2,5-Diamino-2-methylpentanoic acid (CAS 712258-42-9)
- (3S,4S)-1-(tert-butoxycarbonyl)-4-hydroxypyrrolidine-3-carboxylic acid (CAS 1903430-97-6)
- Peptide 439 (CAS CATO-CPTD788439)
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