Ramipril EP Impurity A CAS 108313-11-7
| CAS No. | 108313-11-7 |
| Molecular Formula | C22H30N2O5 |
| Molecular Weight | 402.48 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 Ramipril EP Impurity A.
Ramipril EP Impurity A (CAS 108313-11-7) is a certified pharmaceutical impurity reference standard with the molecular formula C22H30N2O5 and a molecular weight of 402.48 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Ramipril EP Impurity A is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 402.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Ramipril EP Impurity A 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 | C22H30N2O5 |
| Molecular Weight | 402.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Ramipril Standards
- Ramipril EP Impurity D (CAS 108731-95-9)
- Ramipril EP Impurity L (CAS 1309040-96-7)
- Ramipril EP Impurity L(mixture) (CAS CATO-C4X-174412)
- Ramipril EP Impurity E (CAS 87269-97-4)
- Ramipril Impurity 1 (CAS CATO-C4X-17441)
- Ramipril (CAS 87333-19-5)
- Ramipril Impurity 27 (CAS 753405-33-3)
- Ramipril EP Impurity I (CAS 129939-65-7)
Recommended Standards
- Prednisolone Impurity 42 (CAS 3597-59-9)
- Clascoterone Impurity 6 (CAS CATO-C4X-33316)
- Hydrocortisone Impurity 51 (CAS CATO-C4X-140151)
- Cortisone Acetate (CAS 50-04-4)
- Cefprozil EP Impurity L (CAS 203007-73-2)
- Ilaprazole Impurity 90 (CAS CATO-C4X-113090)
- Fulvestrant Impurity 21 (CAS 261506-24-5)
- Tert-butyl (1-((R)-pyrrolidin-3-yl)ethyl)carbamate (CAS 1363412-06-9)
- 5-Chloro-N-(3,4-dichlorophenyl)-1-methyl-3-phenyl-1H-pyrazole-4-carboxamide (CAS 318237-83-1)
- 4-(4-methoxyphenyl)-6-methyl-isoxazolo[5,4-b]pyridin-3-amine (CAS 1225789-95-6)
- Tert-butyl n-(1-oxo-1-phenylpropan-2-yl)carbamate (CAS 138371-45-6)
- 4-((2-Ethylpiperidin-1-yl)sulfonyl)benzenesulfonyl chloride (CAS 1094943-03-9)
- 4-((2-Methylpentan-3-yl)amino)benzonitrile (CAS 1157433-51-6)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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