556440

1-Ethynyl-2,4-difluorobenzene

97%

• Linear Formula: HC≡CC₆H₃F₂
• CAS Number: 302912-34-1
• Molecular Weight: 138.11
• MDL number: MFCD02093726
• UNSPSC Code: 12352100
• PubChem Substance ID: 24879558
• NACRES: NA.22

Properties

• Assay: 97%
• mp: 29-32 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: Fc1ccc(C#C)c(F)c1
• InChI: 1S/C8H4F2/c1-2-6-3-4-7(9)5-8(6)10/h1,3-5H
• InChI key: HRUJQXRGWQWYDH-UHFFFAOYSA-N

Description

General description

1-Ethynyl-2,4-difluorobenzene is an alkyne bearing fluoro group in the phenyl ring.

Application

1-Ethynyl-2,4-difluorobenzene (CM) may be used to synthesize sulfonatedpoly(aryleneether)s containing CM and TFP [4-[Trifluorovinyl(oxy)]phenol]. It may also be employed for the preparation of 4-(2,4-difluorophenylethynyl)-3-methyl-5-phenylisoxazole.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H228,H315,H319,H335
• Precautionary Statements: P210 - P240 - P241 - P261 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flash Point(F): 91.4 °F - closed cup
• Flash Point(C): 33 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves