3-(3,5-Dichloro-4-hydroxy-phenyl)-5-[2-(5-methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-2-thioxo-thiazolidin-4-one CAS 1380572-40-6
| CAS No. | 1380572-40-6 |
| Molecular Formula | C20H12Cl2N2O4S2 |
| Molecular Weight | 479.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 479.36 g/mol gives 3-(3,5-Dichloro-4-hydroxy-phenyl)-5-[2-(5-methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-2-thioxo-thiazolidin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(3,5-Dichloro-4-hydroxy-phenyl)-5-[2-(5-methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-2-thioxo-thiazolidin-4-one (CAS 1380572-40-6) is a high-purity analytical reference standard with the molecular formula C20H12Cl2N2O4S2 and a molecular weight of 479.36 g/mol.
Based on its molecular formula C20H12Cl2N2O4S2, 3-(3,5-Dichloro-4-hydroxy-phenyl)-5-[2-(5-methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-2-thioxo-thiazolidin-4-one contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 479.36 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C20H12Cl2N2O4S2 |
| Molecular Weight | 479.36 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dichloro Standards
- 2-[N-(2,4-Dichloro-5-methoxyphenyl)4-methylbenzenesulfonamido]-N-phenylacetamide (CAS 338961-23-2)
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Recommended Standards
- N-[5-(4-Bromophenyl)-6-(2-hydroxyethoxy)-4-pyrimidinyl]-N'-(phenylmethyl)sulfamide (CAS 441796-08-3)
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- Methyl 3-(((3-oxo-2-(4-(trifluoromethoxy)phenyl)-5-(trifluoromethyl)-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)thiophene-2-carboxylate (CAS 338403-30-8)
- 2-(4-Bromophenyl)-1-(4-methoxyphenyl)-1H-phenanthro[9,10-d]imidazole (CAS 1147081-45-5)
- N'-(4-methylbenzoyl)quinoline-6-carbohydrazide (CAS 900018-77-1)
- 4,7-Bis(5-bromothiophen-2-yl)-5,6-difluoro-2-octyl-2H-benzo[d][1,2,3]triazole (CAS 1393528-99-8)
- 2-methyl-6,7-dihydro-9H-pyrano[4,3-e]pyrazolo[1,5-a]pyrimidin-9-one (CAS 1000932-81-9)
- 1-Methylnaphthalene-5-boronic acid (CAS 1513888-87-3)
- 4-Hydroxy-6-methyl-1-(3,4,5-trimethoxybenzyl)pyridin-2(1H)-one (CAS 868213-24-5)
- N-(2-(4-Fluorophenoxy)ethyl)-4-(trifluoromethyl)benzamide (CAS 1105209-23-1)
- (R)-1-(3,5-Difluorophenyl)ethan-1-amine (CAS 771465-40-8)
- tert-butyl 2-(2-chloropyridin-3-yl)acetate (CAS 1260675-31-7)
- (1R,2S)-2-(difluoromethyl)cyclopropanecarboxylic acid (CAS 1932394-12-1)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788692)
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