2-(4-Fluorocyclohexylidene)acetic acid CAS 1936487-74-9
| CAS No. | 1936487-74-9 |
| Molecular Formula | C8H11FO2 |
| Molecular Weight | 158.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Fluorocyclohexylidene)acetic acid (CAS 1936487-74-9), molecular formula C8H11FO2 and molecular weight 158.17 g/mol, is a CATO reference standard with documented purity and traceability.
2-(4-Fluorocyclohexylidene)acetic acid (C8H11FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine 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 | C8H11FO2 |
| Molecular Weight | 158.17 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
Recommended Standards
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- (1-Ethyl-5-fluoro-3-methyl-1H-pyrazol-4-yl)methanol (CAS 1823422-07-6)
- (7R,8aR)-7-fluorohexahydropyrrolo[1,2-a]pyrazin-3(4H)-one (CAS 2165360-11-0)
- 3-Bromo-5-fluoroisonicotinonitrile (CAS 1353636-66-4)
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- 2',3',4',9'-Tetrahydrospiro[piperidine-4,1'-pyrido[3,4-b]indole] (CAS 119990-83-9)
- 5-bromo-4-chloropyrimidin-2-ol (CAS 1240595-19-0)
- 9-Ethoxyphenazine-1-carboxylic acid (CAS 62256-29-5)
- Potassium (2,2-difluoro-5-oxaspiro[2.3]Hexan-1-yl)trifluoroborate (CAS 2416056-50-1)
- (S)-1-(2-Aminophenyl)ethan-1-ol (CAS 3205-21-8)
- Ethyl 6,7-dihydro-4H-thieno[3,2-c]pyran-2-carboxylate (CAS 623573-71-7)
- 5-(4-Chlorophenyl)-2-phenoxypyrimidine (CAS 477890-42-9)
- [His]1+12-Semaglutide (CAS CATO-C4X-2226178)
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