5-ethynyl-2-(trifluoromethyl)tetrahydropyran CAS 2306265-32-5
| CAS No. | 2306265-32-5 |
| Molecular Formula | C8H9F3O |
| Molecular Weight | 178.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-ethynyl-2-(trifluoromethyl)tetrahydropyran (C8H9F3O) contains a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 178.15 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).
5-ethynyl-2-(trifluoromethyl)tetrahydropyran (CAS 2306265-32-5), molecular formula C8H9F3O and molecular weight 178.15 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 5-ethynyl-2-(trifluoromethyl)tetrahydropyran 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 | C8H9F3O |
| Molecular Weight | 178.15 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | F-containing |
Related ethynyl Standards
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Recommended Standards
- 5-(1H-Pyrrol-1-yl)-4H-1,2,4-triazole-3-carboxylic acid (CAS 383142-90-3)
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- 4-Nitro-1H-indazol-7-amine (CAS 89795-92-6)
- 5-Methyl-3-nitro-1H-pyrazolo[4,3-b]pyridine (CAS 52090-80-9)
- Ozagrel Impurity 48 (CAS 66885-68-5)
- 5-Phenylthiazole-2-carbaldehyde (CAS 862494-59-5)
- 1-(4-Nitrophenyl)piperidine-4-carbaldehyde (CAS 144872-32-2)
- N,O-Isopropylidene Larotaxel (CAS 168120-68-1)
- 2-((Diisopropylamino)methyl)benzenethiol (CAS 75126-73-7)
- (2E)-3-(3-Methoxyphenyl)-1-(4-nitrophenyl)prop-2-en-1-one (CAS 199583-38-5)
- 4-(4-Chlorophenyl)-2-morpholinonicotinonitrile (CAS 478080-41-0)
- Methyl 6-bromo-1-methyl-1H-indazole-3-carboxylate (CAS 946427-77-6)
- 1-(2,2-Difluoroethyl)-4-ethynyl-1H-pyrazole (CAS 1855890-49-1)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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