| CAS No. | 1164529-72-9 |
| Molecular Formula | C18H15NO3S |
| Molecular Weight | 325.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (5Z)-3-Methyl-5-{[2-(4-methylphenoxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (5Z)-3-Methyl-5-{[2-(4-methylphenoxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione (CAS 1164529-72-9), a certified reference material (molecular formula C18H15NO3S, MW 325.38 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H15NO3S, (5Z)-3-Methyl-5-{[2-(4-methylphenoxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.38 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).
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 | C18H15NO3S |
| Molecular Weight | 325.38 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |