2,8-Phenoxathiindicarboxylic acid, 4-sulfo-, 10,10-dioxide CAS 1505455-84-4
| CAS No. | 1505455-84-4 |
| Molecular Formula | C14H8O10S2 |
| Molecular Weight | 400.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,8-Phenoxathiindicarboxylic acid, 4-sulfo-, 10,10-dioxide (C14H8O10S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,8-Phenoxathiindicarboxylic acid, 4-sulfo-, 10,10-dioxide (CAS 1505455-84-4) is a high-purity analytical reference standard with the molecular formula C14H8O10S2 and a molecular weight of 400.34 g/mol.
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 2,8-Phenoxathiindicarboxylic acid, 4-sulfo-, 10,10-dioxide 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 | C14H8O10S2 |
| Molecular Weight | 400.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Sulfur Atoms | 2 |
Recommended Standards
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