1,2-Difluoro-4-methyl-5-(trifluoromethyl)benzene CAS 1263376-06-2
| CAS No. | 1263376-06-2 |
| Molecular Formula | C8H5F5 |
| Molecular Weight | 196.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,2-Difluoro-4-methyl-5-(trifluoromethyl)benzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1,2-Difluoro-4-methyl-5-(trifluoromethyl)benzene (CAS 1263376-06-2), molecular formula C8H5F5 and molecular weight 196.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine substitution, an aromatic ring system, 1,2-Difluoro-4-methyl-5-(trifluoromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C8H5F5 |
| Molecular Weight | 196.12 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.) | 1990 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,4-Difluoro-1-(2,2,2-trifluoroethyl)benzene (CAS 1092350-12-3)
- 1,2-Difluoro-4-(2,2,2-trifluoroethyl)benzene (CAS 1092350-16-7)
- 1,3-Difluoro-5-(2,2,2-trifluoroethyl)benzene (CAS 1092350-20-3)
- 1,4-Difluoro-2-(2,2,2-trifluoroethyl)benzene (CAS 1099597-19-9)
- 1,3-Difluoro-2-(2,2,2-trifluoroethyl)benzene (CAS 1099597-33-7)
- 1,3-Difluoro-4-methyl-2-(trifluoromethyl)benzene (CAS 1099597-62-2)
- 2,3-Difluoro-4-methylbenzotrifluoride (CAS 1099597-66-6)
- 1,2-Difluoro-3-(2,2,2-trifluoroethyl)benzene (CAS 1099597-85-9)
Recommended Standards
- 1-(Difluoromethyl)-3-(trifluoromethyl)benzene (CAS 1214358-15-2)
- 1,4-Difluoro-2-methyl-5-(trifluoromethyl)benzene (CAS 1263376-69-7)
- 2,5-Dinitrobenzaldehyde (CAS 1198424-70-2)
- 2,4-Difluoro-5-methylbenzotrifluoride (CAS 1263377-03-2)
- (R)-1-(2-Benzamidoacetyl)pyrrolidine-2-carboxamide (CAS 177433-42-0)
- 5-((Azetidin-3-yloxy)methyl)-4-chloro-3-ethyl-1-methyl-1h-pyrazole (CAS 1487635-26-6)
- (2-Bromophenyl)(4-butylphenyl)methanone (CAS 64358-17-4)
- 2-Chloro-5-(cyclopropylmethoxy)phenol (CAS 1243391-94-7)
- Estradiol Impurity 46 (CAS CATO-C4X-163646)
- α-Phenyl-2-piperidineacetonitrile (CAS 500780-11-0)
- 5-((3-Methylbut-2-en-1-yl)oxy)-2H-furo[2,3-h]chromen-2-one (CAS 76026-24-9)
- 5-(((2,3-Dihydroxypropyl)thio)methyl)furan-2-carboxylic acid (CAS 1505026-82-3)
- Benzyl 8-oxo-3,7-diazaspiro[5.6]Dodecane-3-carboxylate (CAS 1160247-19-7)
- semaglutide (CAS 782487-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com