Captopril CAS 62571-86-2
| CAS No. | 62571-86-2 |
| Molecular Formula | C9H15NO3S |
| Molecular Weight | 217.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Captopril (CAS 62571-86-2) is a high-purity analytical reference standard with the molecular formula C9H15NO3S and a molecular weight of 217.29 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Captopril is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 217.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Captopril 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.
Physical & Chemical Properties
| Molecular Formula | C9H15NO3S |
| Molecular Weight | 217.29 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1974 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Captopril Standards
- Captopril EP Impurity F (CAS 63250-36-2)
- D-Captopril (CAS 119238-52-7)
- Captopril Related Compound 8 (CAS 112243-88-6)
- Captopril Impurity N1 (CAS 80141-53-3)
- Captopril-d3 (CAS 1356383-38-4)
- Captopril Methyl Ester (CAS 176036-41-2)
- Captopril Impurity 35 (CAS 613256-52-3)
- Captopril impurity 41 (CAS 74190-08-2)
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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