Ramipril Impurity 27 CAS 753405-33-3
| CAS No. | 753405-33-3 |
| Molecular Formula | C23H32N2O5 |
| Molecular Weight | 416.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ramipril Impurity 27 (CAS 753405-33-3), a pharmacopoeial impurity reference standard (molecular formula C23H32N2O5, MW 416.51 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Ramipril Impurity 27 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 416.51 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).
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 Ramipril Impurity 27 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 | C23H32N2O5 |
| Molecular Weight | 416.51 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Ramipril Standards
- Ramipril Impurity 1 (CAS CATO-C4X-17441)
- Ramipril (CAS 87333-19-5)
- Ramipril EP Impurity I (CAS 129939-65-7)
- Ramipril EP Impurity J (CAS 1246253-05-3)
- Ramipril EP Impurity N (CAS 129939-63-5)
- Ramipril EP Impurity L (CAS 1309040-96-7)
- Ramipril EP Impurity L(mixture) (CAS CATO-C4X-174412)
- Ramipril-d5 (CAS 1132661-86-9)
Recommended Standards
- Prednisolone Impurity 61 (CAS 50718-16-6)
- Fesoterodine Impurity 9 (CAS CATO-C4X-16449)
- Trandolapril EP Impurity A (CAS 118194-41-5)
- Fesoterodine Impurity 10 (CAS CATO-C4X-164410)
- Indometacin Impurity 61 (CAS CATO-C4X-147061)
- Policresulen Impurity 8 (CAS CATO-C4X-19808)
- Nintedanib Impurity 121 (CAS CATO-C4X-1814121)
- 3-Methyl-3H,4H,5H,6H,7H-[1,2,3]triazolo[4,5-b]pyridine-7-carboxylic acid (CAS 1803611-98-4)
- (4-(Dimethylamino)phenyl)(imino)(methyl)-lambda6-sulfanone (CAS 2060063-40-1)
- Methyl 2,4-bis(trifluoromethyl)benzoate (CAS 50870-31-0)
- 1-[(oxolan-2-yl)methyl]-1h-1,2,3-triazole-4-carboxylic acid (CAS 1250343-44-2)
- Silver oxide (CAS 1301-96-8)
- (R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)pyrrolidine-2-carboxylic acid hydrate (CAS 2301169-21-9)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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