1,3-Dichloro-2-methyl-4-(trifluoromethyl)benzene CAS 115571-64-7
| CAS No. | 115571-64-7 |
| Molecular Formula | C8H5Cl2F3 |
| Molecular Weight | 229.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 229.03 g/mol gives 1,3-Dichloro-2-methyl-4-(trifluoromethyl)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,3-Dichloro-2-methyl-4-(trifluoromethyl)benzene (CAS 115571-64-7), molecular formula C8H5Cl2F3 and molecular weight 229.03 g/mol, is a CATO reference standard with documented purity and traceability.
1,3-Dichloro-2-methyl-4-(trifluoromethyl)benzene (C8H5Cl2F3) contains fluorine/chlorine 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.
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.
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 | C8H5Cl2F3 |
| Molecular Weight | 229.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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/Cl-containing |
Related Dichloro Standards
- 2,4-Dichloro-1-(2,2,2-trifluoroethyl) benzene 2,4-dichloro-1-(2,2,2-trifluoroethyl)-benzene 1092350-09-8 (CAS 1092350-09-8)
- 1,2-Dichloro-4-(2,2,2-trifluoroethyl)benzene (CAS 1099597-16-6)
- 1,3-Dichloro-2-(2,2,2-trifluoroethyl)benzene (CAS 1099598-25-0)
- 1,5-Dichloro-2-(1,1-difluoroethyl)-4-fluorobenzene (CAS 1138444-97-9)
- 1,3-Dichloro-2-(1,1-difluoroethyl)-4-fluorobenzene (CAS 1138444-99-1)
- 2,3-Dichloro-1-methyl-4-(trifluoromethyl)benzene (CAS 115571-58-9)
- 1,2-Dichloro-3-methyl-4-(trifluoromethyl)benzene (CAS 115571-59-0)
- 1,5-Dichloro-2-methyl-4-(trifluoromethyl)benzene (CAS 115571-61-4)
Recommended Standards
- 4-Bromo-1H-pyrrolo[2,3-b]pyridine-2,6(3H,7H)-dione (CAS 1190310-12-3)
- 3-Bromo-2-methylpyrazolo[1,5-d][1,2,4]triazin-7-ol (CAS 1215295-89-8)
- 4-Bromo-α,α,α-trifluorotoluene-d4 (CAS 1219799-09-3)
- 7-Bromo-2H-pyrido[3,2-β][1,4]oxazin-3(4H)-one (CAS 122450-96-8)
- N'-[(1Z)-(4-Chlorophenyl)methylidene]-2,5-bis(2,2,2-trifluoroethoxy)benzohydrazide (CAS 477864-07-6)
- Imidazo[1,2-α]pyridin-7-ol Methyl Ether (CAS 342613-71-2)
- 3-(Pyridin-3-yl)aniline dihydrochloride (CAS 1235380-44-5)
- Ethyl 4-(2-methoxyphenyl)-2,4-dioxobutanoate (CAS 60943-39-7)
- 4-(Benzyloxy)pyridine-2-carboxylic acid (CAS 100727-49-9)
- Methyl 4-chloro-1H-indazole-3-carboxylate (CAS 932041-14-0)
- 2-Amino-2-methyl-3-phenoxypropanoic acid (CAS 1248108-12-4)
- 2-({[(propan-2-yl)carbamoyl]methyl}sulfanyl)benzoic acid (CAS 793727-60-3)
- 2,3,4-Trifluorobenzotrifluoride (CAS 393-01-1)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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