1-Chloro-4-fluoro-2,5-dimethylbenzene CAS 442197-76-4
| CAS No. | 442197-76-4 |
| Molecular Formula | C8H8ClF |
| Molecular Weight | 158.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 158.60 g/mol gives 1-Chloro-4-fluoro-2,5-dimethylbenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Chloro-4-fluoro-2,5-dimethylbenzene (CAS 442197-76-4), molecular formula C8H8ClF and molecular weight 158.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8ClF, 1-Chloro-4-fluoro-2,5-dimethylbenzene contains fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 158.60 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).
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 | C8H8ClF |
| Molecular Weight | 158.60 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 |
| 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.) | 2025 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 1-Chloro-4,5-dimethyl-2-fluorobenzene (CAS 116850-30-7)
- 1-Chloro-2,3-dimethyl-5-fluorobenzene (CAS 1207091-16-4)
- 4-Chloro-2-ethyl-1-fluorobenzene (CAS 1369889-05-3)
- 2-Chloro-5-fluoro-1,3-dimethylbenzene (CAS 14994-16-2)
- 1-Chloro-2,3-dimethyl-4-fluorobenzene (CAS 1805952-33-3)
- 1-Chloro-2-ethyl-3-fluorobenzene (CAS 896068-57-8)
- 2-Chloro-1-ethyl-4-fluorobenzene (CAS 891844-00-1)
- 2-Chloro-4-ethyl-1-fluoro-benzene (CAS 2338-49-0)
Recommended Standards
- 2-(chloromethyl)-1-fluoro-4-methylbenzene (CAS 64977-31-7)
- 1-(chloromethyl)-4-fluoro-2-methylbenzene (CAS 80141-92-0)
- 2-(Chloromethyl)-4-fluoro-1-methylbenzene (CAS 22062-55-1)
- 1-(Chloromethyl)-3-fluoro-2-methylbenzene (CAS 340984-89-6)
- 2-Butanol (CAS 78-92-2)
- 2,2'-(Naphthalene-1,5-diylbis(oxy))bis(1-phenylethan-1-one) (CAS 319482-15-0)
- 6-(Pyridin-4-yl)-1H-indazole (CAS 885271-89-6)
- Ethyl 1-(2,3-dimethylphenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate (CAS 477710-53-5)
- 5,6-Dihydroxy-2-pyridin-2-yl-pyrimidine-4-carboxylic acid (CAS 766557-40-8)
- (E)-N'-{7-[1-(3-methoxyphenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}-N,N-dimethylmethanimidamide (CAS 477865-40-0)
- 1-(2,3,4-Trifluorophenyl)butan-1-amine (CAS 1270506-23-4)
- 5-Methylpyrimidine-4,6-diamine (CAS 162706-07-2)
- [1,1':2',1''-Terphenyl]-4'-ylboronic acid (CAS 919104-93-1)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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