2-(4-Chlorophenyl)-5-(3-ethoxy-4-propoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one CAS 617694-31-2
| CAS No. | 617694-31-2 |
| Molecular Formula | C22H20ClN3O3S |
| Molecular Weight | 441.93 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-(4-Chlorophenyl)-5-(3-ethoxy-4-propoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 617694-31-2) is a high-purity analytical reference standard with the molecular formula C22H20ClN3O3S and a molecular weight of 441.93 g/mol.
Based on its molecular formula C22H20ClN3O3S, 2-(4-Chlorophenyl)-5-(3-ethoxy-4-propoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one contains a steroid 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 441.93 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).
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 | C22H20ClN3O3S |
| Molecular Weight | 441.93 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
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Recommended Standards
- 2-(((2-Chlorothiazol-5-yl)methyl)thio)-4-(2-fluorophenyl)-1,4-dihydro-5H-indeno[1,2-d]pyrimidin-5-one (CAS 860788-34-7)
- 7-Chloro-5-(3-methylpiperidin-1-yl)-3-(phenylsulfonyl)-[1,2,3]triazolo[1,5-a]quinazoline (CAS 904580-16-1)
- 2,6-Dibromo-3-(2-(2,4-dichlorophenoxy)ethoxy)pyridine (CAS 1355026-47-9)
- N-Nitroso Ziprasidone (CAS CATO-C4X-124053)
- Carbofuran-3-Keto (CAS 16709-30-1)
- 1-(6-Bromo-3-pyridyl)cyclopropanol (CAS 1346538-55-3)
- 3-(fluoromethyl)tetrahydrofuran-3-carboxylic acid (CAS 1780457-15-9)
- 4-(2-Imino-2,3-dihydrothiazol-4-yl)-2-methoxyphenol (CAS 423749-34-2)
- 7-Hydroxy-5-methyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1231750-12-1)
- N-(2,6-difluorophenyl)-2-(ethylamino)acetamide (CAS 730997-90-7)
- 4',5-Difluoro-[1,1'-biphenyl]-2-sulfonyl chloride (CAS 1214339-95-3)
- 6-(1,3-Dioxolan-2-yl)-2-fluorobenzofuran (CAS 648915-97-3)
- 3-Bromo-5-methylbenzo[b]thiophene-2-carbaldehyde (CAS 50563-02-5)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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