5-(2-(Benzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one CAS 89735-52-4
| CAS No. | 89735-52-4 |
| Molecular Formula | C12H8N2O2S2 |
| Molecular Weight | 276.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-(2-(Benzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one (C12H8N2O2S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-(2-(Benzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one (CAS 89735-52-4), molecular formula C12H8N2O2S2 and molecular weight 276.33 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C12H8N2O2S2 |
| Molecular Weight | 276.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 5-((Benzyloxy)methyl)-5-(hydroxymethyl)-3-(propan-2-ylidene)dihydrofuran-2(3H)-one (CAS 932711-33-6)
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- 5-(Butoxymethyl)-1-methyl-5-phenylimidazolidine-2,4-dione (CAS 6637-32-7)
- 4-Oxo-4-((2-(piperidin-1-yl)phenyl)amino)butanoic acid (CAS 436088-44-7)
- 8-(tert-Butyldimethylsilyloxy) 8-Hydroxy Efavirenz, Technical Grade (CAS 1027042-31-4)
- 5-((Methylamino)methyl)pyridin-2-amine (CAS 1199781-42-4)
- 5,6-Diamino-2-(dimethylamino)pyrimidin-4(1H)-one (CAS 61693-31-0)
- 2-Cyano-3-(2,5-dimethoxyphenyl)-N-(4-ethylphenyl)propanamide (CAS 1260950-65-9)
- 4-((3-Ethoxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 36847-96-8)
- (1-Benzyl-2,5-dioxoimidazolidin-4-yl)acetic acid (CAS 1790213-67-0)
- 1',2'-dihydrospiro[cyclopropane-1,3'-indole];hydrochloride (CAS 1788041-56-4)
- (S)-2-((1-((Benzyloxy)carbonyl)pyrrolidin-3-yl)thio)acetic acid (CAS 1353997-91-7)
- 3-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]sulfanyl}-2-butanone O-(2,6-dichlorobenzyl)oxime (CAS 338397-84-5)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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