5,7,3,4-Tetra-O-benzylcatechin CAS 20728-73-8
| CAS No. | 20728-73-8 |
| Molecular Formula | C43H38O6 |
| Molecular Weight | 650.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5,7,3,4-Tetra-O-benzylcatechin 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.
CATO supplies 5,7,3,4-Tetra-O-benzylcatechin (CAS 20728-73-8), a certified reference material (molecular formula C43H38O6, MW 650.76 g/mol) for analytical method development and quality control.
Based on its molecular formula C43H38O6, 5,7,3,4-Tetra-O-benzylcatechin contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 650.76 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).
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 | C43H38O6 |
| Molecular Weight | 650.76 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Tetra Standards
- 5,7,3',4'-Tetra-O-benzylepicatechin (CAS 87292-49-7)
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- 2-3-4-6-Tetra-O-benzoyl-α-D-glucopyranosyl bromide (CAS 14218-11-2)
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- 2-3-4-6-Tetra-O-(4-methoxybenzyl)-D-galactopyranosyl fluoride (CAS 864738-49-8)
Recommended Standards
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- Semaglutide Impurity 5 (CAS 23406-82-8)
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