Captopril EP Impurity G (R-Isomer) CAS 74431-52-0
| CAS No. | 74431-52-0 |
| Molecular Formula | C6H10O3S |
| Molecular Weight | 162.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Captopril EP Impurity G (R-Isomer) (C6H10O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
Captopril EP Impurity G (R-Isomer) (CAS 74431-52-0) is a certified pharmaceutical impurity reference standard with the molecular formula C6H10O3S and a molecular weight of 162.21 g/mol.
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 Captopril EP Impurity G (R-Isomer) 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 | C6H10O3S |
| Molecular Weight | 162.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1978 |
| Sulfur Atoms | 1 |
Related Captopril Standards
- Captopril EP Impurity G (CAS 33325-40-5)
- Captopril EP Impurity G (S-Isomer) (CAS 76497-39-7)
- Captopril EP Impurity D (CAS 56970-78-6)
- Captopril Impurity 31 (CAS 69570-39-4)
- Captopril Impurity 8 (CAS 74345-73-6)
- Captopril Impurity 26 (CAS 51161-88-7)
- Captopril EP Impurity E (CAS 23500-15-4)
- Captopril Impurity 37(Piracetam Impurity E) (CAS 1249080-59-8)
Recommended Standards
- (R)-2-Acetamido-3-mercaptopropanamide (CAS 38520-57-9)
- (R)-3-Methyltetrahydro-4H-thiopyran-4-one 1,1-dioxide (CAS 2756575-41-2)
- (E)-1-methyl-4-(3-oxobut-1-en-1-yl)pyridin-1-ium (CAS 471289-96-0)
- (S)-3-Methyltetrahydro-4H-thiopyran-4-one 1,1-dioxide (CAS 2756575-38-7)
- Fasudil Impurity 2 (CAS CATO-C4X-13652)
- Avibactam Impurity 25 (CAS 1501980-29-5)
- Varenicline Impurity 66 HCI (CAS 328055-88-5)
- 1-Phenylethyl chloroformate (CAS 15600-32-5)
- 9-(3,5-Dihydro-2H-benzo[e][1,4]dioxepin-3-yl)-9H-purin-6-amine (CAS 918304-37-7)
- N,N-Dibutyl-2-(methylthio)-6-vinylpyrimidin-4-amine (CAS 823220-74-2)
- 1,1,2,2,3,3,4,4-Octamesityltetrasiletane (CAS 918424-77-8)
- Cefalotin Impurity 10 (CAS CATO-C4X-128410)
- 2-(((4-Bromo-2-methylphenyl)amino)methyl)-6-methoxyphenol (CAS 883793-27-9)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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