3-((5-(5-Chloro-2-hydroxybenzylidene)-3-methyl-4-oxothiazolidin-2-ylidene)amino)benzoic acid CAS 491582-40-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 491582-40-2 |
| Molecular Formula | C18H13ClN2O4S |
| Molecular Weight | 388.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-((5-(5-Chloro-2-hydroxybenzylidene)-3-methyl-4-oxothiazolidin-2-ylidene)amino)benzoic acid (CAS 491582-40-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H13ClN2O4S. Molecular weight: 388.82 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H13ClN2O4S |
| Molecular Weight | 388.82 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Methyl 3-(2-(2-((4-chlorophenyl)amino)-2-oxoacetyl)-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 477857-80-0)
- (R)-Zopiclone (CAS 138680-08-7)
- N-(4-(3-chlorothiophen-2-yl)thiazol-2-yl)-3-(trifluoromethyl)benzamide (CAS 478260-67-2)
- 5-Chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190318-22-9)
- BDP TR amine (CAS 514216-43-4)
- Finerenone Impurity 210 (CAS CATO-C4X-2880210)
- (S)-2-(4-fluoro-2-nitrophenyl)pyrrolidine (CAS 1213201-84-3)
- 5-methoxy-1H-pyrrolo[3,2-b]pyridine-3-carboxylic acid (CAS 1190319-23-3)
- 2-Phenylpyridine-3-carbonitrile (CAS 39065-49-1)
- Tau Peptide (306-336) (Repeat 3 Domain) trifluoroacetate salt (CAS 330456-26-3)
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