Description

alpha,alpha,beta,beta-Tetrafluoro-2-methylphenetole (CAS No. 42145-66-4) is a high-purity fluorinated aromatic compound with the molecular formula C₉H₈F₄O. This specialty chemical, also known as 1-methyl-2-(1,1,2,2-tetrafluoroethoxy)benzene, is characterized by its unique tetrafluoroethoxy group attached to a methyl-substituted benzene ring, offering exceptional thermal and chemical stability. It is an invaluable intermediate for pharmaceutical, agrochemical, and advanced material synthesis, particularly in the development of fluorinated organic compounds. Our product is rigorously tested to ensure >98% purity (GC), with stringent quality control for moisture, heavy metals, and other impurities. Supplied in sealed glass ampules or custom bulk packaging under inert gas to preserve integrity.

Properties

• CAS Number: 42145-66-4
• Complexity: 184
• IUPAC Name: 1-methyl-2-(1,1,2,2-tetrafluoroethoxy)benzene
• InChI: InChI=1S/C9H8F4O/c1-6-4-2-3-5-7(6)14-9(12,13)8(10)11/h2-5,8H,1H3
• InChI Key: OHXFFMAUQJFAAF-UHFFFAOYSA-N
• Exact Mass: 208.05112752
• Molecular Formula: C9H8F4O
• Molecular Weight: 208.15
• SMILES: CC1=CC=CC=C1OC(C(F)F)(F)F
• Topological: 9.2
• Monoisotopic Mass: 208.05112752
• Synonyms: 42145-66-4, 1-Methyl-2-(1,1,2,2-tetrafluoroethoxy)benzene, EINECS 255-682-4, alpha,alpha,beta,beta-Tetrafluoro-2-methylphenetole, DTXSID60194979, DTXCID50117470, 255-682-4, 2-(1,1,2,2-Tetrafluoroethoxy)toluene, 1,1,2,2-tetrafluoro-1-(2-methylphenoxy)ethane, 2-tetrafluoroethoxytoluene, MFCD00042103, SCHEMBL6296270, SCHEMBL11113862, SBB093998, AKOS015852696, FS-5799, DB-050858, NS00056706, ST51038194, Benzene, 1-methyl-2-(1,1,2,2-tetrafluoroethoxy)-

Application

alpha,alpha,beta,beta-Tetrafluoro-2-methylphenetole is widely used as a key building block in medicinal chemistry for the synthesis of fluorinated drug candidates, leveraging its electron-withdrawing properties to modulate bioavailability. In materials science, it serves as a precursor for liquid crystals and high-performance polymers with enhanced thermal resistance. The compound’s stability under harsh conditions also makes it suitable for catalysis research and specialty solvent formulations.

Safety and Hazards

GHS Hazard Statements

• H226 (97.5%): Flammable liquid and vapor [Warning Flammable liquids]
• H315 (97.5%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (97.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (97.5%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (97.5%)
• Skin Irrit. 2 (97.5%)
• Eye Irrit. 2 (97.5%)
• STOT SE 3 (97.5%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.