Amlodipine Besylate Impurity C CAS 721958-74-3
| CAS No. | 721958-74-3 |
| Molecular Formula | C22H30ClN3O6 |
| Molecular Weight | 467.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Amlodipine Besylate Impurity C.
Amlodipine Besylate Impurity C (CAS 721958-74-3) is a certified pharmaceutical impurity reference standard with the molecular formula C22H30ClN3O6 and a molecular weight of 467.94 g/mol.
The molecular framework of Amlodipine Besylate Impurity C (C22H30ClN3O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Amlodipine Besylate Impurity C 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 | C22H30ClN3O6 |
| Molecular Weight | 467.94 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amlodipine Standards
- Amlodipine Impurity 108 (CAS 88150-61-2)
- Amlodipine Impurity 142 (CAS CATO-C4X-1095142)
- Amlodipine Impurity 109 (CAS 2382886-25-9)
- Amlodipine Impurity N32 (CAS 103094-30-0)
- Amlodipine Impurity 41 (CAS 331258-31-2)
- Amlodipine Impurity 139 (CAS CATO-C4X-1095139)
- Amlodipine Impurity 141 (CAS CATO-C4X-1095141)
- Amlodipine Impurity 17 (CAS CATO-C4X-109517)
Recommended Standards
- N-(2-Chlorophenyl)-3-[(4-Fluorophenyl)Methyl]-4-Oxo-2-Phenylimino-1,3-Thiazinane-6-Carboxamide (CAS 6135-46-2)
- Citarinostat (CAS 1316215-12-9)
- CIQ (CAS 486427-17-2)
- 4-Chloro-N-[(4-ethyl-5-{[(4-nitrophenyl)methyl]sulfanyl}-4H-1,2,4-triazol-3-yl)methyl]benzene-1-sulfonamide (CAS 338421-96-8)
- Rocuronium Impurity 13 (CAS CATO-C4X-124213)
- Lifitegrast Impurity 129 (CAS 2605229-68-1)
- Thiotepa Impurity 1 (CAS 90877-51-3)
- 1-(Boc-amino)cycloheptanecarboxylic Acid (CAS 199330-56-8)
- Coblopasvir (CAS 1312608-46-0)
- 1-(Methylsulfonyl)butan-2-amine (CAS 1248916-68-8)
- 1-Phenyl-2-pentanone (CAS 6683-92-7)
- 4-chloro-1-methyl-pyrazolo[4,3-c]pyridine-7-carboxylic acid (CAS 1780418-96-3)
- Methyl 2-methyl-4-(3-nitrophenyl)-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate (CAS 130734-38-2)
- (Ser(PO?H?)2?2)-Tau Peptide (260-264) PAb Blocking trifluoroacetate salt (CAS 2022956-57-4)
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