Amlodipine Impurity 153 CAS 2923811-73-6
| CAS No. | 2923811-73-6 |
| Molecular Formula | C20H26ClN3O5 |
| Molecular Weight | 423.89 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Amlodipine Impurity 153 (CAS 2923811-73-6) is a certified pharmaceutical impurity reference standard with the molecular formula C20H26ClN3O5 and a molecular weight of 423.89 g/mol.
Structurally, Amlodipine Impurity 153 (C20H26ClN3O5) contains a flavonoid 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 423.89 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C20H26ClN3O5 |
| Molecular Weight | 423.89 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.) | 2004 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amlodipine Standards
- Amlodipine Impurity 99 (CAS CATO-C4X-109599)
- Amlodipine Impurity 24 (CAS 90445-14-0)
- Amlodipine Impurity 80 (CAS CATO-C4X-109580)
- Amlodipine Besylate EP Impurity E (CAS 140171-65-9)
- Amlodipine impurity 68 (CAS 88150-30-5)
- Amlodipine impurity 9 (CAS CATO-C4X-10959)
- Amlodipine Impurity 56 (CAS 2418591-36-1)
- Amlodipine Metabolite 4 (CAS 113994-45-9)
Recommended Standards
- Methyl 3-(4-((4-chlorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylate (CAS 900015-21-6)
- Norepinephrine Impurity 114 (CAS CATO-C4X-1514114)
- Methyl 3-(2-((4-chlorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylate (CAS 900018-88-4)
- Norepinephrine Impurity 117 (CAS CATO-C4X-1514117)
- Triamcinolone Acetonide Impurity 44 (CAS CATO-C4X-132644)
- Glycerol Impurity 49 (CAS CATO-C4X-217149)
- Azilsartan Impurity 161 (CAS CATO-C4X-1096161)
- Methyl 5-acetamido-2-chloroisonicotinate (CAS 1823331-50-5)
- Methyl 4-(((tert-butoxycarbonyl)(3-oxobutyl)amino)methyl)benzoate (CAS 1257403-89-6)
- Carprazidil (CAS 68020-77-9)
- 2-(1-Benzylpiperidin-4-yl)malononitrile (CAS 744195-35-5)
- 7-Bromo-6-fluoro-2,3-dihydro-1H-inden-1-one (CAS 1260011-83-3)
- 6-(1H-Indol-3-yl)-5,7-dihydroindolo[2,3-b]carbazole (CAS 258329-25-8)
- FMRF Amide Related Peptide. (CAS 149471-12-5)
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