3-Ethynyl-2,4-difluoroaniline CAS 1792939-17-3
| CAS No. | 1792939-17-3 |
| Molecular Formula | C8H5F2N |
| Molecular Weight | 153.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-Ethynyl-2,4-difluoroaniline (CAS 1792939-17-3), a certified reference material (molecular formula C8H5F2N, MW 153.13 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H5F2N, 3-Ethynyl-2,4-difluoroaniline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 153.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H5F2N |
| Molecular Weight | 153.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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.) | 1994 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethynyl Standards
- 4-Ethynyl-3,5-difluoroaniline (CAS 1233501-56-8)
- 4-Ethynyl-2,5-difluoroaniline (CAS 1233521-10-2)
- 2-Ethynyl-4,5-difluoroaniline (CAS 143101-25-1)
- 2-Ethynyl-4,6-difluoroaniline (CAS 684250-12-2)
- 2-Ethynyl-3-nitrothiophene (CAS 1285535-11-6)
- 2-Ethynyl-5-nitrothiophene (CAS 74610-87-0)
- 3-Ethynyl-3-hydroxy-1-methylpiperidin-2-one (CAS 1394119-72-2)
- 1-Ethynyl-2,4-dimethylcyclohexan-1-ol (CAS 105463-32-9)
Recommended Standards
- 3-(Dimethylamino)-2,2-difluoropropanoic acid (CAS 1781638-68-3)
- 2,4-Difluoro-6-methylbenzonitrile (CAS 1803782-57-1)
- 3,5-Difluoro-4-methylbenzonitrile (CAS 170572-50-6)
- 2,6-Difluoro-4-methylbenzonitrile (CAS 1803792-98-4)
- 7-Oxo-7-(2,3,4,5-tetrafluorophenyl)heptanoic acid (CAS 951891-67-1)
- (5-Chloro-2-iodophenyl)boronic acid (CAS 1445376-67-9)
- 2-(Phenylselanyl)-1-(thiophen-2-yl)ethanone (CAS 83756-35-8)
- Mca-Arg-Pro-Lys-Pro-Tyr-Ala-Nva-Trp-Met-Lys(Dnp)-NH2 (CAS 158584-08-8)
- N-(tert-Butoxycarbonyl)-O-(pent-4-en-1-yl)-L-serine (CAS 790305-00-9)
- 4-Formyl-2-methoxyphenyl 2-chlorobenzoate (CAS 321726-59-4)
- 3-(3-Nitrophenyl)propan-1-amine hydrochloride (CAS 1257851-44-7)
- Butyraldehyde 2,4-Dinitrophenylhydrazone-3,5,6-d3 (CAS 259824-54-9)
- 4'-Bromo-3'-fluoroacetanilide (CAS 351-30-4)
- MCH-Gene-Overprinted-Polypeptide-14 (rat) (H-4746.0500) (CAS 182917-44-8)
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