Calcium Dobesilate CAS 20123-80-2
| CAS No. | 20123-80-2 |
| Molecular Formula | 2*C6H5O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Calcium Dobesilate (CAS 20123-80-2) is a high-purity analytical reference standard with the molecular formula C6H5O5SCa and a molecular weight of 229.24 g/mol.
Calcium Dobesilate (C6H5O5SCa) contains a carbohydrate-derived structure, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Calcium Dobesilate 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 | 2*C6H5O5S Ca |
| Molecular Weight | 229.24 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Calcium Standards
- Calcium Dobesilate Monohydrate (CAS 117552-79-1)
- Calcium Dobesilate Impurity 19 (CAS 17724-07-1)
- Calcium Dobesilate Impurity N3 (CAS 17724-11-7)
- Calcium Dobesilate Impurity 4 (CAS 2429952-20-3)
- Calcium Dobesilate Impurity N2 (CAS 35857-70-6)
- Calcium Dobesilate Impurity 15 (CAS 35857-70-6(free base))
- Calcium Dobesilate Impurity 7 (CAS 4444-23-9)
- Calcium Dobesilate impurity 22 (CAS 51368-26-4)
Recommended Standards
- (3aR,4R,5R,6aS)-Hexahydro-4-[(3R)-5-phenyl-3-[(tetrahydro-2H-pyran-2-yl)oxy]pentyl]-5-[(tetrahydro-2H-pyran-2-yl)oxy]-2H-cyclopenta[b]furan-2-ol (CAS 856453-29-7)
- 2,4-Dimethoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223053-94-7)
- 1-(Benzofuran-2-yl)-2-cyclopropylethan-1-amine (CAS 1270562-53-2)
- 1,2-Bis(3-methoxybenzylidene)hydrazine (CAS 40252-74-2)
- 4-Hydroxyhippuric acid (CAS 2482-25-9)
- Benzene, 1-methoxy-4-(1-propen-1-yl)-, homopolymer (CAS 25086-72-0)
- n-(2-Chlorobenzyl)pyridin-3-amine (CAS 41039-59-2)
- 63076-51-7 BC001994 CYCLOPENTANEBORONIC ACID CYCLOPENTYLBORONIC ACID CYLOPENTYL BORONIC ACID (CAS 63076-51-7)
- CAS CATO-UWA-ZS-006 (CAS CATO-UWA-ZS-006)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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