Amlodipine Impurity N18 CAS 72569-97-2
| CAS No. | 72569-97-2 |
| Molecular Formula | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Amlodipine Impurity N18 (CAS 72569-97-2) is a certified pharmaceutical impurity reference standard with the molecular formula C7H11NO3 and a molecular weight of 157.17 g/mol.
Amlodipine Impurity N18 (C7H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 Impurity N18 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 | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 1 |
Related Amlodipine Standards
- Amlodipine Impurity 54 (CAS 136744-85-9)
- Amlodipine Impurity 39 (CAS 5183-78-8)
- Amlodipine Impurity 65 (CAS 89-98-5)
- Amlodipine Impurity 64 (CAS 27807-84-7)
- Amlodipine Impurity N17 (CAS 21759-69-3)
- Amlodipine Impurity 89 (CAS CATO-C4X-109589)
- Amlodipine Impurity 25 (CAS 3891-07-4)
- Amlodipine Impurity N12 (CAS 88-66-4)
Recommended Standards
- Ozanimod Impurity 2 (CAS 60899-34-5)
- 6-Azido-hexanoic acid (CAS 79598-53-1)
- Arginine Impurity 5 (CAS 28958-90-9)
- Ac-DL-Pro-OH (CAS 1074-79-9)
- Oxytocin Impurity 40 (Carbamido-Oxytocin) (CAS CATO-C4X-206640)
- Imatinib Impurity 11 (CAS CATO-C4X-106811)
- Amlodipine Impurity 15 (CAS 2832100-50-0)
- 6-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[4,3-b]pyridine (CAS 1416713-01-3)
- 2-Methyl-4,5-dihydrofuran-3-carboxylicacid (CAS 100191-39-7)
- Ethambutol EP Impurity C DiHCl (CAS 134566-79-3)
- 5-Bromo-2-chloro-4-(piperazin-1-yl)pyrimidine (CAS 1288991-81-0)
- Methyl 2-(piperidin-4-ylidene)acetate (CAS 227462-34-2)
- 2-Amino-1-methyl-4,5-dihydro-1H-imidazole-5-carboxylic acid (CAS 76146-25-3)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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