2-(4-Chloro-2-fluorophenyl)butanoic acid CAS 1521213-15-9
| CAS No. | 1521213-15-9 |
| Molecular Formula | C10H10ClFO2 |
| Molecular Weight | 216.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 216.64 g/mol gives 2-(4-Chloro-2-fluorophenyl)butanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(4-Chloro-2-fluorophenyl)butanoic acid (CAS 1521213-15-9), molecular formula C10H10ClFO2 and molecular weight 216.64 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H10ClFO2, 2-(4-Chloro-2-fluorophenyl)butanoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 216.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(4-Chloro-2-fluorophenyl)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 | C10H10ClFO2 |
| Molecular Weight | 216.64 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.) | 1992 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 3-(2-Chloro-6-fluorophenyl)-2-methylpropanoic acid (CAS 1017208-40-0)
- 1-(3-Chloro-4-ethoxy-5-fluorophenyl)ethan-1-one (CAS 1017779-05-3)
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- Ethyl 2-(3-chloro-2-fluorophenyl)acetate (CAS 1035262-78-2)
- 2-(3-chloro-2-fluorophenyl)-2-methylpropanoic acid (CAS 1035262-79-3)
- 2-Chloro-1-(5-fluoro-2-methoxyphenyl)propan-1-one (CAS 1092293-60-1)
- 3-Chloro-4-cyanobenzene-1-sulfonamide (CAS 1094691-00-5)
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Recommended Standards
- 4-(3-Chloro-2-fluorophenyl)butanoic acid (CAS 1501880-21-2)
- 3-(2-fluoro-3-methoxyphenyl)propanoyl chloride (CAS 1525470-75-0)
- 1-(2-Chloroethyl)-3-(3-fluorophenyl)urea (CAS 146257-15-0)
- ethyl 5-chloro-2-fluoro-4-methylbenzoate (CAS 1538528-61-8)
- 2-[1-(5-bromothiophen-2-yl)-n-methylformamido]acetic acid (CAS 1016705-13-7)
- Acetyldiethylstilbestrol 2,3,4-Tri-O-acetyl-β-D-glucuronide Methyl Ester (CAS 40269-22-5)
- Crispine A (CAS 15889-93-7)
- 2-(tert-Butyl)-4-chlorophenol (CAS 13395-85-2)
- rac erythro-9-(2-Hydroxy-3-nonyl)adenine HCl (CAS 51350-19-7)
- Baricitinib Impurity 90 (CAS CATO-C4X-226090)
- 2-Phenyl-1H-benzo[d]imidazole-1-carbonitrile (CAS 55810-22-5)
- Ethyl 4-amino-2-hydroxy-3-methylbutanoate (CAS 1538220-50-6)
- 9-Hydroxy-9H-fluorene-2-carboxylic acid (CAS 86476-54-2)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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