Biphenyl-3,3’,5,5’-tetracarboxylic Acid CAS 4371-28-2
| CAS No. | 4371-28-2 |
| Molecular Formula | C16H10O8 |
| Molecular Weight | 330.25 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.
Biphenyl-3,3’,5,5’-tetracarboxylic Acid (CAS 4371-28-2), molecular formula C16H10O8 and molecular weight 330.25 g/mol, is a CATO reference standard with documented purity and traceability.
Biphenyl-3,3’,5,5’-tetracarboxylic Acid (C16H10O8) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H10O8 |
| Molecular Weight | 330.25 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Biphenyl Standards
- [1,1'-Biphenyl]-2,3',5,5'-tetracarboxylic acid (CAS 1515946-99-2)
- [1,1'-Biphenyl]-2,2',6,6'-tetracarboxylic acid (CAS 4371-27-1)
- [1,1'-Biphenyl]-2,3,3',4'-tetracarboxylic acid (CAS 36978-40-2)
- [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid (CAS 22803-05-0)
- 2-([1,1'-Biphenyl]-2-yloxy)-4,5-dichloroaniline (CAS 1956335-46-8)
- 3-([1,1′-Biphenyl]-4-yloxy)-7-hydroxy-4H-1-benzopyran-4-one (CAS 370841-90-0)
- 2-(2-Biphenyl-4-yl-vinyl)-6-hydroxy-benzoic acid methyl ester (CAS 1171924-89-2)
- N1-([1,1'-Biphenyl]-2-yl)-N2-benzyloxalamide (CAS 1909333-78-3)
Recommended Standards
- Acaprazine (CAS 55485-20-6)
- N-Benzyl-N-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-amine (CAS 2096342-22-0)
- 5-Hydroxydantrolene (CAS 52130-25-3)
- N-benzyl-N-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-amine (CAS 2096333-04-7)
- (4-Amino-2-bromopyridin-3-yl)methanol (CAS 1806963-83-6)
- 7,8-Dihydro-1H-purine-6-carbonitrile (CAS 128033-35-2)
- Ethyl 2-chloro-2-[2-(2,4-difluorophenyl)hydrazin-1-ylidene]acetate (CAS 1264087-24-2)
- (2,6-Bis(ethoxycarbonyl)pyridin-4-yl)boronic acid (CAS 344891-76-5)
- 2-[3-(Aminomethyl)phenoxy]acetonitrile (CAS 1061650-73-4)
- Ethyl N-[(2E)-2-[(4-{5-chloro-1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-6-oxo-1,6-dihydropyridazin-4-yl}piperazin-1-yl)methylidene]-2-cyanoacetyl]carbamate (CAS 338399-98-7)
- 4-Cyclohexylbutanoyl chloride (CAS 4441-67-2)
- Fluvoxamine Impurity 32 (CAS CATO-C4X-195132)
- 3-Methyl-5-(trifluoromethyl)pyridin-4-amine (CAS 1101061-18-0)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
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