(5E)-5-(2,3-Dihydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one CAS 590376-71-9
| CAS No. | 590376-71-9 |
| Molecular Formula | C10H7NO3S2 |
| Molecular Weight | 253.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5E)-5-(2,3-Dihydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (C10H7NO3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(5E)-5-(2,3-Dihydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (CAS 590376-71-9) is a high-purity analytical reference standard with the molecular formula C10H7NO3S2 and a molecular weight of 253.30 g/mol.
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 | C10H7NO3S2 |
| Molecular Weight | 253.30 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.) | 1984 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related E Standards
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Recommended Standards
- (4-(Benzyloxy)-1H-indol-6-yl)methanol (CAS 61545-37-7)
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- (3E)-1-{[1,1'-biphenyl]-4-yl}-3-(methoxyimino)propan-1-one (CAS 303995-84-8)
- (5R,6S)-5,6-Diphenylmorpholin-2-one (CAS 815582-48-0)
- 2-Amino-2-(2,6-difluorophenyl)propan-1-ol (CAS 1178174-38-3)
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- Ribociclib HCl (CAS 1211443-80-9)
- 2-(Dichloromethyl)-1,3-dioxane (CAS 5695-85-2)
- 3-Fluoro-1H-indazole (CAS 66607-26-9)
- 5-methoxy-1-phenylpentan-2-amine (CAS 1249980-06-0)
- 3-(4-Propylpiperazin-1-yl)propan-1-amine (CAS 4553-24-6)
- 3279-26-3 Dichloro Methyl Phosphite Dichloromethoxyphosphine Methoxydichlorophosphine Methoxyphosphonous Dichloride Methyl dichlorophosphite Methyl phosphorodichloridite O-Methyl Phosphorodichloridite (CAS 3279-26-3)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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