2-chloro-2-fluoro-1-methylcyclopropane-1-carboxylic acid CAS 128230-79-5
| CAS No. | 128230-79-5 |
| Molecular Formula | C5H6ClFO2 |
| Molecular Weight | 152.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-chloro-2-fluoro-1-methylcyclopropane-1-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-chloro-2-fluoro-1-methylcyclopropane-1-carboxylic acid (CAS 128230-79-5), a certified reference material (molecular formula C5H6ClFO2, MW 152.55 g/mol) for analytical method development and quality control.
2-chloro-2-fluoro-1-methylcyclopropane-1-carboxylic acid (C5H6ClFO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C5H6ClFO2 |
| Molecular Weight | 152.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Cl-containing |
Related chloro Standards
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Recommended Standards
- 2-(2-chloroacetoxy)acetic acid (CAS 30450-82-9)
- 4-(Chloromethyl)-2,5-oxazolidinedione-d3 (CAS 1794713-40-8)
- Malic Acid Impurity 15 (CAS 4198-33-8)
- Chlorosuccinic acid (CAS 16045-92-4)
- Ligustrazine Phosphate (CAS 1124-11-4)
- n-[(dodecylsulfanyl)({[(4-methoxyphenyl)methyl]amino})methylidene]-3-ethoxypropan-1-amine hydrobromide (CAS 1235441-80-1)
- (4-Methyl-3-(3-(4-methylpiperazin-1-yl)propoxy)phenyl)boronic acid (CAS 1704064-31-2)
- (5-((4-Fluorophenyl)thio)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 318239-65-5)
- 2,6-Diaminopyrimidin-4(3H)-one (CAS 143504-99-8)
- 3-(1,1-Difluoro-2-hydroxyethyl)benzonitrile (CAS 2228993-53-9)
- n,3,5-Trimethylcyclohexan-1-amine (CAS 252854-24-3)
- tert-butyl N-(3,3-dimethyl-5-oxocyclohexyl)carbamate (CAS 1989672-47-0)
- 3-Methyl-2-phenyl-2,3-dihydrobenzo[d]thiazole (CAS 16192-33-9)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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