Chlortalidone EP Impurity A CAS 345930-32-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 345930-32-7 |
| Molecular Formula | C14H9ClO6S |
| Molecular Weight | 340.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Chlortalidone EP Impurity A (CAS 345930-32-7), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C14H9ClO6S. Molecular weight: 340.74 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C14H9ClO6S |
| Molecular Weight | 340.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlortalidone Standards
- Chlortalidone EP Impurity B (CAS 5270-74-6)
- Chlortalidone Sulfochloro Impurity (CAS 68592-12-1)
- Chlortalidone EP Impurity D (CAS 1369995-36-7)
- Chlortalidone EP Impurity C (CAS 92874-73-2)
- Chlortalidone Impurity 6 (CAS 68592-11-0)
- Chlortalidone EP Impurity I (CAS 2514668-27-8)
- Chlortalidone Impurity 4 (CAS 118-04-7)
- Chlortalidone Impurity 8 (CAS 2224-77-3)
Recommended Standards
- S-((6-Chloro-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)methyl) O,O-dimethyl phosphorodithioate (CAS 35570-72-0)
- (6-Chloro-4-trifluoromethyl-pyridin-2-ylsulfanyl)-acetic acid [1-dimethylamino-meth-(E)-ylidene]-hydrazide (CAS 1858264-43-3)
- o,o-Diethyl ((3-chloro-4-fluorophenyl)carbamoyl)phosphoramidothioate (CAS 680580-25-0)
- Trazodone Impurity 37 HCl (CAS CATO-C4X-177237)
- Pitavastatin Impurity 43 (CAS CATO-C4X-103743)
- 3-(4-Methoxy-3-nitrophenyl)-2,2-dimethylpropan-1-amine (CAS 1485518-57-7)
- Dicloxacillin EP Impurity A (CAS CATO-C4X-16151)
- Ethyl 5-bromo-2-(methylthio)pyrimidine-4-carboxylate (CAS 74840-38-3)
- tert-butyl N-[(3R)-2,5-dioxopyrrolidin-3-yl]carbamate (CAS 163929-77-9)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
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 13829788188 / jacky.chen@cato-chem.com