2-Chloro-2-(3-oxo-1-phenylbutyl)-1H-indene-1,3(2H)-dione CAS 42581-23-7
| CAS No. | 42581-23-7 |
| Molecular Formula | C19H15ClO3 |
| Molecular Weight | 326.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Chloro-2-(3-oxo-1-phenylbutyl)-1H-indene-1,3(2H)-dione (CAS 42581-23-7), molecular formula C19H15ClO3 and molecular weight 326.77 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H15ClO3, 2-Chloro-2-(3-oxo-1-phenylbutyl)-1H-indene-1,3(2H)-dione contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 326.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 2-Chloro-2-(3-oxo-1-phenylbutyl)-1H-indene-1,3(2H)-dione 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 | C19H15ClO3 |
| Molecular Weight | 326.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Cl-containing |
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- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
Why CATO?
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