1,3,4-Trifluoro-2-methyl-5-trifluoromethyl-benzene CAS 933674-91-0
| CAS No. | 933674-91-0 |
| Molecular Formula | C8H4F6 |
| Molecular Weight | 214.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,3,4-Trifluoro-2-methyl-5-trifluoromethyl-benzene (CAS 933674-91-0) is a high-purity analytical reference standard with the molecular formula C8H4F6 and a molecular weight of 214.11 g/mol.
Owing to fluorine substitution, an aromatic ring system, 1,3,4-Trifluoro-2-methyl-5-trifluoromethyl-benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H4F6 |
| Molecular Weight | 214.11 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.) | 1987 |
| Halogen Content | F-containing |
Related Trifluoro Standards
- 1,2,3-Trifluoro-4-(2,2,2-trifluoroethyl)benzene (CAS 1099597-23-5)
- 1,2,4-Trifluoro-5-(2,2,2-trifluoroethyl)-benzene 1099597-26-8 8666AC C8H4F6 (CAS 1099597-26-8)
- 1,3,5-Trifluoro-2-(2,2,2-trifluoroethyl)benzene (CAS 1099597-27-9)
- 1,2,3-Trifluoro-5-(2,2,2-trifluoroethyl)benzene (CAS 1099597-28-0)
- 1,2,4-Trifluoro-3-(2,2,2-trifluoroethyl)benzene (CAS 1262412-96-3)
- 1,2,5-Trifluoro-4-methyl-3-trifluoromethyl-benzene (CAS 933674-92-1)
- 2,2,2-Trifluoro-1-(1H-indazol-3-yl)ethanone (CAS 1040502-31-5)
- 1,1,1-Trifluoro-5,5-dimethoxypentane-2,4-dione (CAS 1397179-68-8)
Recommended Standards
- 1,2-Bis(trifluoromethyl)benzene (CAS 433-95-4)
- 1-Bromonaphthalene-D7 (CAS 37621-57-1)
- 1-fluoro-3-(pentafluoroethyl)benZene (CAS 2396-10-3)
- (3R,4S,5R)-3,4-Dihydroxy-5-methyltetrahydrofuran-2-yl dihydrogen phosphate (CAS 86708-78-3)
- Lignocaine Base (CAS 137-58-6)
- 3-(3,5-Dichlorophenyl)azetidine (CAS 1260811-88-8)
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- 2-(5-Methyl-3-(morpholine-4-carbonyl)-1H-pyrazol-1-yl)-N,N-dipropylacetamide (CAS 1169958-71-7)
- 1-(Bicyclo[2.2.1]heptan-2-yl)-2-methylpropan-2-ol (CAS 1245617-76-8)
- 1-(4-Fluorophenyl)-2-methoxyethan-1-amine (CAS 321839-91-2)
- 5-(Bromomethyl)-2,2-dimethyl-1,3-dioxane (CAS 111934-94-2)
- Ethyl 2-((3-(benzyloxy)phenyl)(phenyl)amino)acetate (CAS 1951441-40-9)
- 5,6-Dihydroxy-2-thiophen-2-yl-pyrimidine-4-carboxylic acid (CAS 391680-79-8)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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