Candesartan Cilexetil EP Impurity G-d4 CAS 1346604-70-3
| CAS No. | 1346604-70-3 |
| Molecular Formula | - |
| Molecular Weight | 444.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Candesartan Cilexetil EP Impurity G-d4 is closely related to deuterium isotope labeling, a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Candesartan Cilexetil EP Impurity G-d4 (CAS 1346604-70-3) is a certified pharmaceutical impurity reference standard with the molecular formula C24H16D4N6O3 and a molecular weight of 444.48 g/mol.
The molecular framework of Candesartan Cilexetil EP Impurity G-d4 (C24H16D4N6O3) is characterized by deuterium isotope labeling, a steroid core, an amide group, a hydroxyl group, an ether linkage. 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 Candesartan Cilexetil EP Impurity G-d4 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 | C24H16D4N6O3 |
| Molecular Weight | 444.48 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 6 |
Related Candesartan Standards
- Candesartan-d5 (CAS 1189650-58-5)
- Candesartan Ethyl Ester Desethyl Analog (CAS 1225044-20-1)
- Candesartan Cilexetil Impurity 20 (CAS CATO-C4X-123420)
- Candesartan Cilexetil EP Impurity G(Candesartan) (CAS 139481-59-7)
- Candesartan Cilexetil Impurity 46 (CAS 1821386-35-9)
- Candesartan Cilexetil EP Impurity I (CAS 139481-69-9)
- Candesartan-d5 Methyl Ester (CAS 1216502-48-5)
- Candesartan Cilexetil Impurity 43 (CAS CATO-C4X-123443)
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- 2-(4-Piperidylmethoxy)pyrimidine (CAS 1147181-71-2)
- N-(4-Amino-2-chlorophenyl)cyclobutanecarboxamide (CAS 926249-65-2)
- 2-amino-N-(6-methoxypyridin-3-yl)benzamide (CAS 954259-38-2)
- 2-(Cyclohexyloxy)-5-hydroxy-N,N-dimethylbenzamide (CAS 1243379-38-5)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
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