2-[(E)-(2-Mercapto-4-oxo-1,3-thiazol-5(4H)-ylidene)methyl]benzoic acid 56661-83-7 5761AE C11H7NO3S2 CAS 56661-83-7
| CAS No. | 56661-83-7 |
| Molecular Formula | C11H7NO3S2 |
| Molecular Weight | 265.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-[(E)-(2-Mercapto-4-oxo-1,3-thiazol-5(4H)-ylidene)methyl]benzoic acid 56661-83-7 5761AE C11H7NO3S2 is closely related to a nitrogen-containing heterocyclic scaffold, 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 2-[(E)-(2-Mercapto-4-oxo-1,3-thiazol-5(4H)-ylidene)methyl]benzoic acid 56661-83-7 5761AE C11H7NO3S2 (CAS 56661-83-7), a certified reference material (molecular formula C11H7NO3S2, MW 265.31 g/mol) for analytical method development and quality control.
The molecular framework of 2-[(E)-(2-Mercapto-4-oxo-1,3-thiazol-5(4H)-ylidene)methyl]benzoic acid 56661-83-7 5761AE C11H7NO3S2 (C11H7NO3S2) 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-[(E)-(2-Mercapto-4-oxo-1,3-thiazol-5(4H)-ylidene)methyl]benzoic acid 56661-83-7 5761AE C11H7NO3S2 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 | C11H7NO3S2 |
| Molecular Weight | 265.31 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related E Standards
- (E)-4-((2-Mercapto-4-oxothiazol-5(4H)-ylidene)methyl)benzoic acid (CAS 103987-82-2)
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- (5E)-2-Mercapto-5-(2-nitrobenzylidene)-1,3-thiazol-4(5H)-one (CAS 6308-22-1)
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