5,7,3,4-Tetra-O-benzylcatechin CAS 20728-73-8
Purity 97%+In StockPharmaceutical Standards
| 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
5,7,3,4-Tetra-O-benzylcatechin (CAS 20728-73-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C43H38O6. Molecular weight: 650.76 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
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)
- 5,11,17,23-Tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene stereoisomer (CAS 157432-87-6)
- Tetra-N-acetyl Kanamycin A (CAS 20399-23-9)
- 2-3-4-6-Tetra-O-acetyl-β-D-glucopyranosyl-Fmoc serine (CAS 118358-38-6)
- 2-3-4-6-Tetra-O-acetyl-β-D-galactopyranosyl-(N2-Fmoc)-L-serine (CAS 96383-44-7)
- 2-3-4-6-Tetra-O-benzoyl-α-D-glucopyranosyl bromide (CAS 14218-11-2)
- 2-3-4-6-Tetra-O-acetyl-α-D-mannopyranosyl-Fmoc serine (CAS 118358-80-8)
- 2-3-4-6-Tetra-O-(4-methoxybenzyl)-D-galactopyranosyl fluoride (CAS 864738-49-8)
Recommended Standards
- Naloxonazine dihydrochloride (CAS 82824-01-9)
- (S)-2,2'-Dihydroxy-α,α,α',α'-tetraphenyl-[1,1'-binaphthalene]-3,3'-dimethanol (CAS 309269-73-6)
- 2-(o-Methoxy)-4,5-diphenylimidazole-1,2'-dimer (CAS 1831-70-5)
- Dipentylamine acetate (CAS 211676-91-4)
- 2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-3-yl)acetamide (CAS 338975-41-0)
- 2-Chloro-3-nitroaniline hydrochloride (CAS 1803590-09-1)
- 1-(2,5-Difluorophenyl)cyclopropanecarboxylic Acid (CAS 1260761-18-9)
- N-(2-cyanoethyl)isonicotinamide (CAS 1131-84-6)
- 3-(1h-Imidazol-2-yl)aniline dihydrochloride (CAS 1258650-47-3)
- 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 13829788188 / jacky.chen@cato-chem.com