2,2-Difluoro-1-(o-tolyl)ethan-1-one CAS 703-42-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 703-42-4 |
| Molecular Formula | C9H8F2O |
| Molecular Weight | 170.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2-Difluoro-1-(o-tolyl)ethan-1-one (CAS 703-42-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H8F2O. Molecular weight: 170.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H8F2O |
| Molecular Weight | 170.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Difluoro Standards
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- 1-(3,6-Difluoro-2-methylphenyl)ethan-1-one (CAS 1379339-99-7)
- 1-(3,5-Difluoro-2-methylphenyl)ethan-1-one (CAS 1557818-59-3)
- 5,7-Difluoro-2,3-dihydro-1H-inden-1-ol (CAS 173996-15-1)
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Recommended Standards
- 2,2-Difluoro-1-(m-tolyl)ethan-1-one (CAS 50562-05-5)
- 2,2-Difluoro-1-(p-tolyl)ethan-1-one (CAS 704-36-9)
- 2-(3,5-Difluorophenyl)propanal (CAS 494862-30-5)
- (2R,3R,4S,5R)-2-(2-Amino-6-((furan-2-ylmethyl)amino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 26783-39-1)
- 2-Methyl-1-(pyridine-3-carbonyl)piperazine (CAS 1240570-13-1)
- 1-(4-Chlorobenzyl)-5-fluoro-uracil (CAS 85093-33-0)
- 6-Fluoro-2,3-dihydrobenzofuran (CAS 1072153-65-1)
- 17-Hydroxy-19-thia-2,14-diazatetracyclo[10.7.0.0^{3,10}.0^{13,18}]nonadeca-1(12),2,10,13(18),16-pentaen-15-one (CAS 290299-90-0)
- 4-Chloro-5-ethyl-1H-pyrrolo[2,3-d]pyrimidin-2-amine (CAS 213623-59-7)
- Exenatide Acetate (CAS 141732-76-5)
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