4-Chloro-1-ethynyl-2-(trifluoromethyl)benzene CAS 1231244-86-2
| CAS No. | 1231244-86-2 |
| Molecular Formula | C9H4ClF3 |
| Molecular Weight | 204.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-1-ethynyl-2-(trifluoromethyl)benzene (C9H4ClF3) contains fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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.
CATO supplies 4-Chloro-1-ethynyl-2-(trifluoromethyl)benzene (CAS 1231244-86-2), a certified reference material (molecular formula C9H4ClF3, MW 204.58 g/mol) for analytical method development and quality control.
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), 4-Chloro-1-ethynyl-2-(trifluoromethyl)benzene 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 | C9H4ClF3 |
| Molecular Weight | 204.58 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 methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
- 1-Chloro-3-(3,3,3-trifluoroprop-1-yn-1-yl)benzene (CAS 122961-10-8)
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- 2-Chloro-5-fluoro-4-methoxybenzoic acid (CAS 1228376-40-6)
- 2-Chloro-1-ethynyl-4-(trifluoromethyl)benzene (CAS 1340255-91-5)
- methyl 2-(2-chlorophenyl)-2,2-difluoroacetate (CAS 1782332-00-6)
- 3-((3-Methylbutan-2-yl)amino)thietane 1,1-dioxide (CAS 1872800-63-9)
- Ethyl 2-(1,1,2,2-tetrafluoroethoxy)benzoate (CAS 773136-87-1)
- 2-(2-Aminoethoxy)-1,3-dimethylbenzene hydrochloride (CAS 313527-92-3)
- 1-Propyl-1h-pyrazole-5-sulfonamide (CAS 1339850-81-5)
- 1-(6-Methylpyridazin-3-yl)ethan-1-one (CAS 91544-04-6)
- 4-Ethoxy-1,1,1-trifluorobutan-2-ol (CAS 219777-03-4)
- 2-((4-Chlorobenzyl)thio)-N-(2,3-dichlorophenyl)acetamide (CAS 306732-07-0)
- N-Methyl-1,1,1-trifluoro-2-butylamine (CAS 1314972-82-1)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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