(1E,6E)-4-(1,3-dithiepan-2-ylidene)-1,7-di-2-furylhepta-1,6-diene-3,5-dione CAS 329726-18-3
| CAS No. | 329726-18-3 |
| Molecular Formula | C20H18O4S2 |
| Molecular Weight | 386.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (1E,6E)-4-(1,3-dithiepan-2-ylidene)-1,7-di-2-furylhepta-1,6-diene-3,5-dione 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.
(1E,6E)-4-(1,3-dithiepan-2-ylidene)-1,7-di-2-furylhepta-1,6-diene-3,5-dione (CAS 329726-18-3), molecular formula C20H18O4S2 and molecular weight 386.48 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18O4S2, (1E,6E)-4-(1,3-dithiepan-2-ylidene)-1,7-di-2-furylhepta-1,6-diene-3,5-dione contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 386.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C20H18O4S2 |
| Molecular Weight | 386.48 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 2 |
Recommended Standards
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- 1-(6-Bromopyridin-3-yl)propan-1-one (CAS 1194020-10-4)
- 2,4,6-Triphenyl-1,3,5,2,4,6-trithiatriborinane (CAS 1870-69-5)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
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