5-[2-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid CAS 309242-67-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 309242-67-9 |
| Molecular Formula | C18H18N2O3S2 |
| Molecular Weight | 374.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-[2-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid (CAS 309242-67-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H18N2O3S2. Molecular weight: 374.48 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H18N2O3S2 |
| Molecular Weight | 374.48 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dihydro Standards
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Recommended Standards
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- 4-(Methylsulfanyl)-6-(naphthalen-2-yloxy)-8-thia-3,5-diazatricyclo[7.4.0.0^{2,7}]trideca-1(13),2(7),3,5,9,11-hexaene (CAS 478030-06-7)
- 1-Ethoxy-4-ethyl-5-fluoro-2-nitrobenzene (CAS 1089282-86-9)
- 5-(3-(2-Chlorophenyl)-5-methylisoxazol-4-yl)-3-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 337932-16-8)
- Tert-butyl (1-(4-(methylamino)butanoyl)piperidin-4-yl)carbamate (CAS 1308648-48-7)
- 1-(6-(Dimethoxymethyl)-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-1-yl)-2,2-dimethylpropan-1-one (CAS 1261365-93-8)
- 5-Bromo-2-methyl-3-sulfamoylbenzoic acid (CAS 1375472-31-3)
- 2-Iodo-4-(methylsulfonyl)phenol (CAS 20951-45-5)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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 13829788188 / jacky.chen@cato-chem.com