Amlodipine Impurity 94 Oxalate CAS CATO-C4X-109594
| CAS No. | CATO-C4X-109594 |
| Molecular Formula | C20H26N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Amlodipine Impurity 94 Oxalate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Amlodipine Impurity 94 Oxalate (CAS CATO-C4X-109594), a pharmacopoeial impurity reference standard (molecular formula C20H26N2O5C2H2O4, MW 464.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Amlodipine Impurity 94 Oxalate (C20H26N2O5C2H2O4) contains a flavonoid core, 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 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.
Physical & Chemical Properties
| Molecular Formula | C20H26N2O5 C2H2O4 |
| Molecular Weight | 464.47 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 Amlodipine Standards
- Amlodipine Impurity N32 (CAS 103094-30-0)
- (R)-Amlodipine (CAS 103129-81-3)
- Amlodipine (S)-Isomer (CAS 103129-82-4)
- Amlodipine Impurity N5 (CAS 107812-86-2)
- Amlodipine Impurity N2 (CAS 111429-90-4)
- Amlodipine Besylate (CAS 111470-99-6)
- Amlodipine Impurity N4 (CAS 113994-36-8)
- Amlodipine Impurity 38 (CAS 113994-37-9)
Recommended Standards
- Tizanidine Impurity 65 (CAS 67357-54-4)
- Decitabine Impurity 16 (alpha-Isomers) (CAS 570410-68-3)
- Empagliflozin impurity 01 (CAS 95574-97-3)
- 8-(4-Heptyloxyphenyl)-8-oxooctanoic acid (CAS 898792-25-1)
- 4-{[(2-methylphenyl)methyl]amino}butanoic acid hydrochloride (CAS 1181458-44-5)
- Leuprorelin impurity 36 (CAS 1926163-25-8)
- 6-((3-Bromobenzyl)oxy)-7H-purin-2-amine (CAS 561014-69-5)
- 4-(Dihydroxymethyl)picolinaldehyde (CAS 31197-31-6)
- 4-{[4-(propan-2-yl)phenyl]sulfanyl}aniline (CAS 62248-50-4)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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