Calcium 2,5-dihydroxy-4-tosylbenzenesulfonate CAS 57772-61-9
| CAS No. | 57772-61-9 |
| Molecular Formula | 2*C13H11O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Calcium 2,5-dihydroxy-4-tosylbenzenesulfonate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Calcium 2,5-dihydroxy-4-tosylbenzenesulfonate (CAS 57772-61-9), a certified reference material (molecular formula C13H11O7S2Ca, MW 383.42 g/mol) for analytical method development and quality control.
Structurally, Calcium 2,5-dihydroxy-4-tosylbenzenesulfonate (C13H11O7S2Ca) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 383.42 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Calcium 2,5-dihydroxy-4-tosylbenzenesulfonate 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*C13H11O7S2 Ca |
| Molecular Weight | 383.42 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 |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Sulfur Atoms | 2 |
Related Calcium Standards
- Ethyl 2,2-dihydroxy-4-ethoxy-3-oxobutanoate (CAS 1000018-28-9)
- Ethyl 4,6-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-65-8)
- Ethyl 4,7-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-66-9)
- Ethyl 4,8-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-67-0)
- 1-(2,4-Dihydroxy-3,6-dimethoxyphenyl)-3-(2-methoxyphenyl)prop-2-en-1-one 100079-39-8 ST24037017 (CAS 100079-39-8)
- 2,3-Dihydroxy-3-(4-hydroxyphenyl)propanoic acid (CAS 100201-57-8)
- 1,4-Dihydroxy-5,8-bis(methylamino)anthracene-9,10-dione (CAS 100495-28-1)
- 1,4-Dihydroxy-5,8-bis(propylamino)anthracene-9,10-dione (CAS 100495-30-5)
Recommended Standards
- 1,9-Dimethylphenazine (CAS 58718-44-8)
- Methyl 8-amino-4-oxo-4H-chromene-3-carboxylate (CAS 1253654-50-0)
- 3-(((6-Chloropyridin-3-yl)methyl)thio)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1210156-96-9)
- 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-Heptadecafluorodecyl methacrylate (CAS 1996-88-9)
- 2-(Benzylamino)-4-(4-bromophenyl)-4-oxobutanoic acid (CAS 1031756-56-5)
- Dimethoxydi(piperidin-1-yl)silane (CAS 180536-06-5)
- 2-(3-Methoxybenzoyl)-4-methylpyridine (CAS 1187165-05-4)
- Dipivaloylmethane lithium (CAS 22441-13-0)
- 2,2,5,5-tetramethylmorpholine hydrochloride (CAS 1311314-96-1)
- Prolactin-Releasing Peptide (12-31), rat (CAS 222988-10-5)
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