4-(2,3-Difluorophenyl)butanoic acid CAS 939043-52-4
| CAS No. | 939043-52-4 |
| Molecular Formula | C10H10F2O2 |
| Molecular Weight | 200.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(2,3-Difluorophenyl)butanoic acid (C10H10F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 200.18 g/mol, it falls into the medium-molecular-weight range. 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-(2,3-Difluorophenyl)butanoic acid (CAS 939043-52-4) is a high-purity analytical reference standard with the molecular formula C10H10F2O2 and a molecular weight of 200.18 g/mol.
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.
As a certified reference material (CRM), 4-(2,3-Difluorophenyl)butanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H10F2O2 |
| Molecular Weight | 200.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 2-(2,3-Difluorophenyl)-2-methylpropanoic acid (CAS 1035261-36-9)
- 3-(3,4-Difluorophenyl)butanoic acid (CAS 1042641-92-8)
- 3-(2,4-Difluorophenyl)butanoic acid (CAS 1042815-69-9)
- 4-(2,4-Difluorophenyl)butanoic acid (CAS 110931-78-7)
- 2-(2,6-Difluorophenyl)-2-methylpropanoic acid (CAS 1216838-87-7)
- 2-(3,5-Difluorophenyl)butanoic acid (CAS 1225522-69-9)
- 2-(3,4-Difluorophenyl)butanoic acid (CAS 1226167-09-4)
- Methyl 2-(3,5-difluorophenyl)propanoate (CAS 1248159-75-2)
Recommended Standards
- 3-Trifluoromethylsulfanyl-pentane-2,4-dione (CAS 42105-34-0)
- 4-(2,5-Difluorophenyl)butanoic acid (CAS 899350-25-5)
- 3,5-Difluoro-4-propoxybenzaldehyde (CAS 883521-37-7)
- 4-(2,6-Difluorophenyl)butanoic acid (CAS 899350-35-7)
- Tert-butyl 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-carboxylate (CAS 1023514-10-4)
- 1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide (CAS 106535-39-1)
- Ethyl 8-amino-2,3-dimethylimidazo[1,2-a]pyridine-6-carboxylate (CAS 248920-00-5)
- 1-(Aminomethyl)cyclobutanol hydrochloride (CAS 911060-81-6)
- 3-Amino-N-(pyridin-2-ylmethyl)propanamide (CAS 938515-13-0)
- 353258-51-2 8-chloro-N-(2-pyridinylmethyl)-6-(trifluoromethyl)imidazo[1,2-a]pyridine-2-carboxamide KS-000030FV (CAS 353258-51-2)
- 2-Thiophenecarboxaldehyde, 4-(1-cyclohexen-1-yl)- (CAS 58267-90-6)
- Pararosolic Acid (CAS 603-45-2)
- Mianserin Impurity 106 (CAS CATO-C4X-1369106)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com