4-Ethyl-1,2-difluorobenzene CAS 116850-25-0
| CAS No. | 116850-25-0 |
| Molecular Formula | C8H8F2 |
| Molecular Weight | 142.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Ethyl-1,2-difluorobenzene (CAS 116850-25-0), a certified reference material (molecular formula C8H8F2, MW 142.15 g/mol) for analytical method development and quality control.
4-Ethyl-1,2-difluorobenzene (C8H8F2) contains fluorine 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.
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 | C8H8F2 |
| Molecular Weight | 142.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Ethyl Standards
- 1-Ethyl-3,5-difluorobenzene (CAS 117358-52-8)
- 1-Ethyl-2,3-difluorobenzene (CAS 152422-03-2)
- 2-Ethyl-1,3-difluorobenzene (CAS 83484-01-9)
- 2,6-Difluorobenzene-1,4-diamine (CAS 3743-86-0)
- 4,6-Difluorobenzene-1,3-diamine (CAS 25170-74-5)
- 4,5-Difluorobenzene-1,2-diol (CAS 147300-08-1)
- 3,5-Difluorobenzene-1,2-diol (CAS 147300-09-2)
- 2,4-Difluorobenzene-1,3-diol, 97% (CAS 195136-71-1)
Recommended Standards
- 2,3-Difluoro-1,4-dimethylbenzene (CAS 116850-22-7)
- 5-Ethynylbenzofuran (CAS 1158745-04-0)
- <SC>L</SC>-Asparagine-<SUP>15</SUP>N<SUB>2</SUB>,d<SUB>8</SUB> Monodeuterium compound (CAS 118230-33-4)
- 2-(2-Propyn-1-yloxy)butanoic acid (CAS 1157984-71-8)
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Why CATO?
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