3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate CAS 145876-11-5
| CAS No. | 145876-11-5 |
| Molecular Formula | C21H21I2NO4S |
| Molecular Weight | 637.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate.
3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate (CAS 145876-11-5), molecular formula C21H21I2NO4S and molecular weight 637.27 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H21I2NO4S, 3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 637.27 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).
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 3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate 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 | C21H21I2NO4S |
| Molecular Weight | 637.27 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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