(+)-3,4,3,5,7-Penta-O-benzylcatechin CAS 85443-49-8
| CAS No. | 85443-49-8 |
| Molecular Formula | C50H44O6 |
| Molecular Weight | 740.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(+)-3,4,3,5,7-Penta-O-benzylcatechin (CAS 85443-49-8), molecular formula C50H44O6 and molecular weight 740.88 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (+)-3,4,3,5,7-Penta-O-benzylcatechin is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 740.88 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures (+)-3,4,3,5,7-Penta-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.
Physical & Chemical Properties
| Molecular Formula | C50H44O6 |
| Molecular Weight | 740.88 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
Related Penta Standards
- 1,2,3,4,6-Penta-O-benzoyl-D-glucopyranoside (CAS 3006-49-3)
- 1,2,3,4,6-Penta-O-benzoyl-b-D-galactopyranose (CAS 41545-56-6)
- 1,2,3,4,6-penta-O-benzoyl-D-mannopyranose (CAS 96996-90-6)
- 1,2,3,5,6-PEnta-o-benzoyl-d-galactofuranose (CAS 89202-34-6)
- 1-2-3-4-6-Penta-O-benzoyl-α-D-galactopyranose (CAS 41545-55-5)
- 1-2-3-4-6-Penta-O-benzyl-β-D-thiogalactopyranoside (CAS 210358-01-3)
- 1,2,3,4,6-PEnta-o-pivaloyl-beta-d-mannopyranose (CAS 153610-22-1)
- 1,2,3,4,6-Penta-O-pivaloyl-D-mannopyranose (CAS 220017-47-0)
Recommended Standards
- Tetramethyl 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoate (CAS 1776115-39-9)
- Danoprevir-[d9] (CAS 1224178-61-3)
- Cefditoren Impurity 15 (CAS CATO-C4X-135815)
- 4-(5,15,20-Tri-p-tolylporphyrin-10-yl)phenyl methacrylate (CAS 97807-12-0)
- 2-Chloro-7,7-dimethyl-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 2812355-72-7)
- (3S,4R)-4-(2,3-Dichlorophenyl)pyrrolidine-3-carboxylic acid (CAS 1049978-56-4)
- 4-(Difluoromethyl)-6-fluoro-5-iodopyridin-3-ol (CAS 1807131-88-9)
- 1-(2-Ethoxyphenyl)-N-methylmethanamine (CAS 709651-39-8)
- 5-(Methoxycarbonyl)-1h-indole-2-carboxylicacid (CAS 681288-76-6)
- 3-(2-Methyl-1H-imidazol-1-yl)propanoic acid hydrochloride (CAS 1052530-15-0)
- 36809-75-3 Tin(4+) tetrakis(2-methylpropan-2-olate) DTXSID40747907 (CAS 36809-75-3)
- Alectinib Impurity 74 (CAS CATO-C4X-283674)
- ((Methylsulfonyl)methyl)(p-tolyl)sulfane (CAS 59662-68-9)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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