Calcium Dobesilate Impurity N3 CAS 17724-11-7
| CAS No. | 17724-11-7 |
| Molecular Formula | C6H6O8S2 |
| Molecular Weight | 270.24 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 Calcium Dobesilate Impurity N3.
Calcium Dobesilate Impurity N3 (CAS 17724-11-7) is a certified pharmaceutical impurity reference standard with the molecular formula C6H6O8S2 and a molecular weight of 270.24 g/mol.
Owing to a carbohydrate-derived structure, a sulfone group, Calcium Dobesilate Impurity N3 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.24 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 Calcium Dobesilate Impurity N3 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 | C6H6O8S2 |
| Molecular Weight | 270.24 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 2 |
Related Calcium Standards
- Calcium Dobesilate Impurity 7 (CAS 4444-23-9)
- Calcium Dobesilate Impurity 8 (CAS 81010-88-0)
- Calcium Dobesilate Impurity 24 (CAS CATO-C4X-205124)
- Calcium Dobesilate Impurity 25 (CAS CATO-C4X-205125)
- Calcium Dobesilate Impurity 14 (CAS CATO-C4X-205114)
- Calcium Dobesilate Impurity 26 (CAS CATO-C4X-205126)
- Calcium Dobesilate Impurity 23 (CAS CATO-C4X-205123)
- Calcium Dobesilate Impurity 4 (CAS 2429952-20-3)
Recommended Standards
- Phenyl beta-D-Glucuronide (CAS 17685-05-1)
- 4-Benzylamine-7-nitrobenzofurazan, 98% (CAS 18378-20-6)
- Methyl 1-(4-(1,2,4-oxadiazol-3-yl)phenyl)-1H-pyrazole-3-carboxylate (CAS 1710661-64-5)
- Ethyl 4-(4-carbamoyl-3-nitro-1H-pyrazol-1-yl)butanoate (CAS 1855890-12-8)
- Benserazide Impurity 21 (CAS 5625-41-2)
- Dithranol EP Impurity D (CAS 1715-81-7)
- Ceftazidime Impurity 98 (CAS CATO-C4X-121298)
- 5-(Furan-2-yl)-4H-pyrazole-3-carboxylic acid (CAS 116153-81-2)
- 3-(5-Methyl-2h-tetrazol-2-yl)adamantane-1-carbohydrazide (CAS 438219-64-8)
- Ethyl 5-cyano-1-(pyridin-4-yl)-1H-pyrazole-4-carboxylate (CAS 98476-15-4)
- 4-Chloro-5-methoxypyridine-2-carbaldehyde (CAS 1060801-63-9)
- 4-(heptafluoropropan-2-yl)benzoic acid (CAS 2396-21-6)
- m-PEG7-Ms (CAS 477775-57-8)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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