Skip to Content
Merck
CN
All Photos(2)

Documents

Safety Information

556440

Sigma-Aldrich

1-Ethynyl-2,4-difluorobenzene

97%

Sign Into View Organizational & Contract Pricing

Linear Formula:
HC≡CC6H3F2
CAS Number:
Molecular Weight:
138.11
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

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

Looking for similar products? Visit Product Comparison Guide

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.

Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Sulfonated poly (arylene ether) membranes containing perfluorocyclobutyl and ethynyl groups: Increased mechanical strength through chain extension and crosslinking.
Lee SB, et al.
Journal of Membrane Science , 456, 49-56 (2014)
Synthesis of glycidyl triazolyl polymers using click chemistry.
Jung JH, et al.
Tetrahedron Letters, 48(37), 6442-6448 (2007)
Synthesis of 3, 4, 5-Trisubstituted Isoxazoles through Gold-Catalyzed Cascade Cyclization- Oxidative Alkynylation and Cyclization-Fluorination of 2-Alkynone O-Methyloximes.
Song D-H and Ryu J-S.
Bull. Korean Chem. Soc., 35(9), 2635-2644 (2014)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service