4-(5-(3,4-Dimethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid CAS 18623-44-4
| CAS No. | 18623-44-4 |
| Molecular Formula | C16H17NO5S2 |
| Molecular Weight | 367.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 367.44 g/mol gives 4-(5-(3,4-Dimethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-(5-(3,4-Dimethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 18623-44-4), a certified reference material (molecular formula C16H17NO5S2, MW 367.44 g/mol) for analytical method development and quality control.
4-(5-(3,4-Dimethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (C16H17NO5S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 4-(5-(3,4-Dimethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid 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 | C16H17NO5S2 |
| Molecular Weight | 367.44 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Dimethoxybenzylidene Standards
- N-(3,4-Dimethoxybenzylidene)-4-iodoaniline (CAS 83368-91-6)
- 3-(3,4-Dimethoxybenzylidene)-5-(3,4-dimethoxyphenyl)furan-2(3H)-one (CAS 102474-18-0)
- 6-(2-((2,3-Dimethoxybenzylidene)amino)phenyl)-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (CAS 303095-21-8)
- 5-(2,4-Dimethoxybenzylidene)-3-morpholino-2-thioxothiazolidin-4-one (CAS 881816-89-3)
- 5-(3,4-Dimethoxybenzylidene)-2-(pyridin-4-yl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606949-63-7)
- 5-(2,4-Dimethoxybenzylidene)-2-phenylthiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606960-78-5)
- 5-(3,4-Dimethoxybenzylidene)-2-phenylthiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606949-54-6)
- 3-(2-(2,5-Dimethoxybenzylidene)hydrazinyl)-6-methyl-5H-[1,2,4]triazino[5,6-b]indole (CAS 327032-34-8)
Recommended Standards
- (2S,3R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-methylpentanoic acid (CAS 1821797-58-3)
- (4r)-3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylhexanoic acid (CAS 1933763-89-3)
- Methyl (2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}hexanoate (CAS 1820579-45-0)
- Ethyl 3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2,2-dimethylpropanoate (CAS 1934802-10-4)
- Ethyl 5-(chlorosulfonyl)-3-methyl-1H-pyrazole-4-carboxylate (CAS 1299471-28-5)
- 2-Chloropteridin-4(3H)-one (CAS 1710854-45-7)
- (4R)-α-[(4R)-4,5-Dihydro-4-phenyl-2-oxazolyl]-4,5-dihydro-4-phenyl-2-oxazoleacetonitrile (CAS 1442644-12-3)
- Macitentan Impurity 14 (CAS 2211059-05-9)
- 4-Oxo-8-(trifluoromethoxy)-1,4-dihydroquinoline-3-carboxylic acid (CAS 40516-40-3)
- Methyl 1-(2-cyanoethyl)-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1018141-84-8)
- 4,7-Di(2-thienyl)-2,1,3-benzothiadiazole (CAS 165190-76-1)
- Hexahydropyrazino[2,1-c][1,4]thiazin-9(6H)-one (CAS 1228680-42-9)
- 5-(Methoxymethyl)-4-[(morpholinoamino)methylene]-2,4-dihydro-3H-pyrazol-3-one (CAS 240799-70-6)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com