4'-(Ethoxycarbonyl)-3,3'-difluoro-[1,1'-biphenyl]-2-carboxylic acid CAS 1261955-65-0
| CAS No. | 1261955-65-0 |
| Molecular Formula | C16H12F2O4 |
| Molecular Weight | 306.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution, 4'-(Ethoxycarbonyl)-3,3'-difluoro-[1,1'-biphenyl]-2-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4'-(Ethoxycarbonyl)-3,3'-difluoro-[1,1'-biphenyl]-2-carboxylic acid (CAS 1261955-65-0) is a high-purity analytical reference standard with the molecular formula C16H12F2O4 and a molecular weight of 306.26 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C16H12F2O4 |
| Molecular Weight | 306.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Ethoxycarbonyl Standards
- 3-(Ethoxycarbonyl)-1-(2-methoxyphenyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264043-35-7)
- 3-(Ethoxycarbonyl)-1-(3-methoxyphenyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264044-23-6)
- 3-(Ethoxycarbonyl)-1-(4-ethoxyphenyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264048-30-7)
- 3-(Ethoxycarbonyl)-1-(4-methoxyphenyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264049-13-9)
- Benzyl 3-((Ethoxycarbonyl)methyl)-3-aminopyrrolidine-1-carboxylate (CAS 1111202-74-4)
- Ethyl 2-(4-(ethoxycarbonyl)piperidin-1-yl)nicotinate (CAS 1185291-71-7)
- Ethyl 1-(2-(Ethoxycarbonyl)Phenyl)Piperidine-4-Carboxylate (CAS 773137-80-7)
- [3-(Ethoxycarbonyl)-5-(4-fluorophenyl)-2-methyl-1H-pyrrol-1-yl]acetic acid (CAS 879329-75-6)
Recommended Standards
- (2R)-Methyl 3-(tetrahydrofuran-2-yl)-2-(((trifluoromethyl)sulfonyl)oxy)propanoate (CAS 1215198-15-4)
- 2,2,2-trifluoroethyl N-(4-methoxy-1,3-benzothiazol-2-yl)carbamate (CAS 1311314-86-9)
- N-(5-methylisoxazol-3-yl)-2-(trifluoromethyl)benzenesulfonamide (CAS 1025797-90-3)
- (4-Iodophenylacetylene)trimethylsilane (CAS 134856-58-9)
- (4-Methoxybenzyl)isoxazol-3-amine (CAS 1269530-62-2)
- 2-Bromo-3,6-difluorobenzoic acid (CAS 124244-65-1)
- 4-Decenoic Acid (CAS 26303-90-2)
- 1-(3-Fluorophenyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 1269292-21-8)
- 5-Methyl-3-propyl-3-(pyridin-2-yl)dihydrofuran-2(3H)-one (CAS 71824-64-1)
- N-(6-chloropyridazin-3-yl)-4-methylbenzenesulfonamide (CAS 91349-44-9)
- 3,6-Dichloro-2-(thiophen-2-yl)imidazo[1,2-b]pyridazine (CAS 483367-56-2)
- 7-bromo-3-methylthieno[3,2-c]pyridin-4-amine (CAS 2306263-16-9)
- trans-3-Aminocyclobutanecarboxylic acid ethyl ester (CAS 957793-97-4)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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