[1,1'-Binaphthalene]-2,2',7,7'-tetraol CAS 66478-68-0
| CAS No. | 66478-68-0 |
| Molecular Formula | C20H14O4 |
| Molecular Weight | 318.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies [1,1'-Binaphthalene]-2,2',7,7'-tetraol (CAS 66478-68-0), a certified reference material (molecular formula C20H14O4, MW 318.32 g/mol) for analytical method development and quality control.
The molecular framework of [1,1'-Binaphthalene]-2,2',7,7'-tetraol (C20H14O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures [1,1'-Binaphthalene]-2,2',7,7'-tetraol 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 | C20H14O4 |
| Molecular Weight | 318.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Binaphthalene Standards
- [1,1'-Binaphthalene]-2,2'-diyldimethanol (CAS 3594-94-3)
- [2,2'-Binaphthalene]-1,1',4,4'-tetraone (CAS 3408-13-7)
- [1,1'-Binaphthalene]-4,4'-dicarbonitrile (CAS 115584-22-0)
- (1R)-[1,1'-Binaphthalene]-2,2'-dicarbonitrile (CAS 129783-80-8)
- (S)-[1,1'-Binaphthalene]-2,2'-dicarbonitrile (CAS 129783-81-9)
- [1,1′-Binaphthalene]-3,3′-dicarbonitrile,2,2′-dihydroxy-, (1S)- (CAS 656805-31-1)
- [1,1'-Binaphthalene]-2-carboxylic acid (CAS 18795-02-3)
- (R)-[1,1'-Binaphthalene]-2,2'-dicarboxamide (CAS 406464-00-4)
Recommended Standards
- [1,1':4',1''-Terphenyl]-3,5-dicarboxylicacid (CAS 2170439-29-7)
- 1,1-Bi(2,3-naphthodiol) (CAS 39215-21-9)
- [1,1':2',1''-Terphenyl]-4,4''-dicarboxylicacid (CAS 77951-96-3)
- 2-(((2-Methoxy-4-nitrophenyl)amino)methylene)-5,5-dimethylcyclohexane-1,3-dione (CAS 330215-30-0)
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- (S)-4-(hydroxymethyl)pyrrolidin-2-one (CAS 476423-84-4)
- 2-((2-(((Benzyloxy)carbonyl)amino)cyclohexyl)(methyl)amino)acetic acid (CAS 1353970-30-5)
- 2-Bromo-6,7-difluorobenzo[d]thiazole, 97% (CAS 1188247-71-3)
- 2-Amino-1-(3-hydroxy-1-pyrrolidinyl)-1-propanonehydrochloride (CAS 1236260-62-0)
- (R)-1-(3-Chloropyrrolidin-1-yl)ethanone (CAS 1354016-94-6)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com