4-[(2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoic acid CAS 199167-79-8
| CAS No. | 199167-79-8 |
| Molecular Formula | C11H7NO4S |
| Molecular Weight | 249.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-[(2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
4-[(2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoic acid (CAS 199167-79-8) is a high-purity analytical reference standard with the molecular formula C11H7NO4S and a molecular weight of 249.24 g/mol.
Structurally, 4-[(2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoic acid (C11H7NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 249.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H7NO4S |
| Molecular Weight | 249.24 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.) | 2013 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related dioxo Standards
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Recommended Standards
- 4-(Benzo[d][1,3]dioxol-5-yl)thiazole-2-carboxylic acid (CAS 952958-63-3)
- 4-Fluoro-3-methylphenethyl oxazole-4-carboxylate (CAS 51655-76-6)
- 4-(4-Fluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylic acid (CAS 864082-26-8)
- 5-(3-Nitrophenyl)thiophene-2-carboxylic acid (CAS 341015-21-2)
- 2-[(Difluoromethyl)thio]benzoic Acid (CAS 79676-56-5)
- 4-(4,5-Dimethyl-4h-1,2,4-triazol-3-yl)thiazol-2-amine (CAS 1342124-77-9)
- 5-Chloro-N,3-dimethyl-2-(methylsulfonamido)benzamide (CAS 2831004-03-4)
- 2-(3-Bromo-2,6-difluorophenyl)acetonitrile (CAS 1516081-14-3)
- 8-chloro-5-methoxy-2-methylquinoline hydrochloride (CAS 1461709-36-3)
- 2-(4-Methoxypiperidin-1-yl)acetic acid hydrochloride (CAS 2034209-81-7)
- 7,7-Bis(4-(diethylamino)-2-ethoxyphenyl)furo[3,4-b]pyridin-5(7H)-one (CAS 132467-74-4)
- Cilazapril (CAS 88768-40-5)
- 1-(5-Chloro-2-methylphenyl)butan-1-ol (CAS 1314965-06-4)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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