4,4'-(1,3-Phenylenebis(oxy))dibenzoic acid CAS 77865-43-1
| CAS No. | 77865-43-1 |
| Molecular Formula | C20H14O6 |
| Molecular Weight | 350.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4,4'-(1,3-Phenylenebis(oxy))dibenzoic acid (CAS 77865-43-1), a certified reference material (molecular formula C20H14O6, MW 350.32 g/mol) for analytical method development and quality control.
The molecular framework of 4,4'-(1,3-Phenylenebis(oxy))dibenzoic acid (C20H14O6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures 4,4'-(1,3-Phenylenebis(oxy))dibenzoic acid 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 | C20H14O6 |
| Molecular Weight | 350.32 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1979 |
Related Phenylenebis Standards
- 4,4'-(1,4-Phenylenebis(oxy))dibenzoic acid (CAS 13282-09-2)
- 4,4'-(1,2-Phenylenebis(oxy))dibenzoic acid (CAS 74294-25-0)
- 4,4'-((1,4-Phenylenebis(methylene))bis(oxy))dibenzaldehyde (CAS 64621-41-6)
- 3,3'-(1,4-phenylenebis(azanediyl))bis(5,5-dimethylcyclohex-2-enone) (CAS 78431-57-9)
- 4,4'-(1,3-Phenylenebis(diazene-2,1-diyl))bis(benzene-1,3-diamine) (CAS 1052-38-6)
- 1,4-Phenylenebis((4-chlorophenyl)methanone) (CAS 22198-42-1)
- 1,1'-(1,3-Phenylenebis(methylene))bis(3-methyl-1H-pyrrole-2,5-dione) (CAS 119462-56-5)
- 2,2',2'',2'''-(1,4-Phenylenebis(azanetriyl))tetraacetic acid (CAS 1099-02-1)
Recommended Standards
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- Edaravone Glucuronide (CAS 67566-02-3)
- 2-{[2-(3-Hydroxy-2-naphthoyl)hydrazino]carbonyl}benzoic acid (CAS 299409-36-2)
- (2,3-Difluoro-6-iodophenyl)methanol (CAS 887585-77-5)
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- 4-Bromo-N-(2-methoxy-5-methylphenyl)benzenesulfonamide (CAS 349122-26-5)
- (r)-6-Fluoro-2-(piperidin-3-yl)isoindolin-1-one hydrochloride (CAS 1643571-00-9)
- 7-Ethyl-2,3-dihydrotryptophol (CAS 114737-75-6)
- Methyl 1-amino-5-carbamoyl-1H-pyrrole-3-carboxylate (CAS 1204245-38-4)
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- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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