(1R,2R)-rel-2-(4-Chloro-3-fluorophenyl)cyclopropane-1-carboxylic acid CAS 2055841-07-9
| CAS No. | 2055841-07-9 |
| Molecular Formula | C10H8ClFO2 |
| Molecular Weight | 214.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (1R,2R)-rel-2-(4-Chloro-3-fluorophenyl)cyclopropane-1-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(1R,2R)-rel-2-(4-Chloro-3-fluorophenyl)cyclopropane-1-carboxylic acid (CAS 2055841-07-9), molecular formula C10H8ClFO2 and molecular weight 214.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (1R,2R)-rel-2-(4-Chloro-3-fluorophenyl)cyclopropane-1-carboxylic acid (C10H8ClFO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 214.62 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C10H8ClFO2 |
| Molecular Weight | 214.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F/Cl-containing |
Recommended Standards
- (1R,2R)-2-(3-chloro-5-fluorophenyl)cyclopropane-1-carboxylic acid (CAS 2227899-38-7)
- (2E)-3-(4-Chloro-3-fluorophenyl)-2-methylprop-2-enoic acid (CAS 773111-09-4)
- 1-(2-Chloro-4-fluorophenyl)pyrazolidin-3-one (CAS 183586-08-5)
- (E)-3-(2-chloro-6-fluoro-3-methylphenyl)acrylic acid (CAS 261762-89-4)
- Di-tert-butyl ((2R,2'S)-azanediylbis(1-phenylpropane-3,2-diyl))dicarbamate (CAS 777026-65-0)
- Phorbol-12-Decanoate (CAS 76423-68-2)
- 3-(2,3-Dihydro-1,4-benzodioxin-6-yl)benzonitrile (CAS 893737-44-5)
- 3-Methyl-2-(piperidin-4-yl)-6-(pyridin-4-yl)pyrimidin-4(3H)-one (CAS 831231-81-3)
- 4-Benzyltoluene (CAS 27776-01-8)
- 1-Cyclobutyl-2-methylpiperazine (CAS 949922-66-1)
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- tert-Butyl ((5-bromo-2-methoxypyridin-3-yl)methyl)carbamate (CAS 334016-81-8)
- 2-Methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydroisoquinoline (CAS 942921-84-8)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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