| CAS No. | 62625-32-5 |
| Molecular Formula | C21H25Br4O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Based on its molecular formula C21H25Br4O5SNa, 3 inverted exclamation marka,3 inverted exclamation marka,5 inverted exclamation marka,5 inverted exclamation marka-Tetrabromo-m-cresolsulfonphthalein sodium salt 3',3",5',5"-Tetrabromo-m-cresolsulfonphthalein sodium salt 62625-32-5 potassium 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylbenzenolate sodium 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1|E6-benzoxathiol-3-yl]-3-methylbenzenolate contains a salt form, a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 732.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 3 inverted exclamation marka,3 inverted exclamation marka,5 inverted exclamation marka,5 inverted exclamation marka-Tetrabromo-m-cresolsulfonphthalein sodium salt 3',3",5',5"-Tetrabromo-m-cresolsulfonphthalein sodium salt 62625-32-5 potassium 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylbenzenolate sodium 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1|E6-benzoxathiol-3-yl]-3-methylbenzenolate (CAS 62625-32-5), a certified reference material (molecular formula C21H25Br4O5SNa, MW 732.09 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 | C21H25Br4O5S Na |
| Molecular Weight | 732.09 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |