(5E)-5-(2-Hydroxy-3-methoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4739AF 99972-65-3 C11H9NO3S2 CAS 99972-65-3
| CAS No. | 99972-65-3 |
| Molecular Formula | C11H9NO3S2 |
| Molecular Weight | 267.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies (5E)-5-(2-Hydroxy-3-methoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4739AF 99972-65-3 C11H9NO3S2 (CAS 99972-65-3), a certified reference material (molecular formula C11H9NO3S2, MW 267.32 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H9NO3S2, (5E)-5-(2-Hydroxy-3-methoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4739AF 99972-65-3 C11H9NO3S2 contains a nitrogen-containing heterocyclic scaffold, 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 267.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), (5E)-5-(2-Hydroxy-3-methoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4739AF 99972-65-3 C11H9NO3S2 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H9NO3S2 |
| Molecular Weight | 267.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 69505-47-1 (5E)-5-[(3-Hydroxy-4-methoxyphenyl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one DTXSID70362480 (CAS 69505-47-1)
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- 3-Amino-1-(cyclobutylmethyl)pyridin-2(1h)-one (CAS 1495843-59-8)
- 2-Hydroxy-N-(4-methoxy-2-methylphenyl)-11H-benzo[a]carbazole-3-carboxamide (CAS 5840-22-2)
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- Propyl 3-aminopropanoate (CAS 145613-45-2)
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- 1,3-Bis(4-methylbenzenesulfonylthio)propane (CAS 3866-79-3)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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