| CAS No. | 181934-30-5 |
| Molecular Formula | C18H31IO2Si |
| Molecular Weight | 434.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1<I>H</I>)-one 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.
1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1<I>H</I>)-one (CAS 181934-30-5), molecular formula C18H31IO2Si and molecular weight 434.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H31IO2Si, 1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1<I>H</I>)-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 434.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
| Molecular Formula | C18H31IO2Si |
| Molecular Weight | 434.43 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2008 |
| Halogen Content | I-containing |