| CAS No. | 27937-63-9 |
| Molecular Formula | C10H9O7S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, 1,3-Benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester, sodium salt (1:1), polymer with 1,4-dimethyl 1,4-benzenedicarboxylate and 1,2-ethanediol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 552.48 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).
CATO supplies 1,3-Benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester, sodium salt (1:1), polymer with 1,4-dimethyl 1,4-benzenedicarboxylate and 1,2-ethanediol (CAS 27937-63-9), a certified reference material (molecular formula C10H9O7SC10H10O4C2H6O2Na, MW 552.48 g/mol) for analytical method development and quality control.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C10H9O7S C10H10O4 C2H6O2 Na |
| Molecular Weight | 552.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Sulfur Atoms | 1 |