2,2'-Dihydroxy-[1,1'-biphenyl]-4,4'-dicarboxylic acid CAS 41738-72-1
| CAS No. | 41738-72-1 |
| Molecular Formula | C14H10O6 |
| Molecular Weight | 274.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2,2'-Dihydroxy-[1,1'-biphenyl]-4,4'-dicarboxylic acid (CAS 41738-72-1), molecular formula C14H10O6 and molecular weight 274.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,2'-Dihydroxy-[1,1'-biphenyl]-4,4'-dicarboxylic acid (C14H10O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C14H10O6 |
| Molecular Weight | 274.23 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Dihydroxy Standards
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Recommended Standards
- 2,2’-Dinitrobenzidine (CAS 5855-71-0)
- 2,4-Dinitro-1-(o-tolyloxy)benzene (CAS 2363-26-0)
- 2-(5-Hydroxy-2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione (CAS 222991-42-6)
- 3-((Nitrooxy)methyl)phenyl isonicotinate (CAS 2444010-45-9)
- 3-(6,6-Dimethyl-3-oxotetrahydro-2H-pyran-2-yl)-3-hydroxyindolin-2-one (CAS 361179-31-9)
- 7-Chloro-6-ethyl-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 117713-49-2)
- 3-Amino-5-(difluoromethyl)benzonitrile (CAS 2438163-01-8)
- 2-((6-Methylpyridin-2-yl)oxy)acetic acid (CAS 90005-76-8)
- Naftidrofuryl Oxalate Impurity C (CAS 115025-99-5)
- Glucoiberin (CAS 554-88-1)
- 1-(4-fluoro-2-methylphenyl)-1H-pyrazol-3-amine (CAS 1341958-09-5)
- (S)-2-Hydroxybutanoic acid (CAS 3347-90-8)
- 3-Bromo-N-(furan-2-ylmethyl)benzamide (CAS 346663-79-4)
- Semaglutide impurity 289 (CAS CATO-C4X-2226289)
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