BENZENE, 1-ETHYNYL-2,4-DIFLUORO-

Modify Date: 2024-01-11 21:08:09

BENZENE, 1-ETHYNYL-2,4-DIFLUORO- Structure
BENZENE, 1-ETHYNYL-2,4-DIFLUORO- structure
Common Name BENZENE, 1-ETHYNYL-2,4-DIFLUORO-
CAS Number 302912-34-1 Molecular Weight 138.11400
Density 1.17g/cm3 Boiling Point 134.7ºC at 760 mmHg
Molecular Formula C8H4F2 Melting Point 29-32ºC(lit.)
MSDS Chinese USA Flash Point 92 °F
Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Warning

 Names

Name 1-Ethynyl-2,4-difluorobenzene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.17g/cm3
Boiling Point 134.7ºC at 760 mmHg
Melting Point 29-32ºC(lit.)
Molecular Formula C8H4F2
Molecular Weight 138.11400
Flash Point 92 °F
Exact Mass 138.02800
LogP 1.94610
Index of Refraction 1.492
Storage condition 2-8°C

 Safety Information

Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Warning
Hazard Statements H228-H315-H319-H335
Precautionary Statements P210-P280-P304 + P340 + P312-P305 + P351 + P338-P337 + P313
Personal Protective Equipment Eyeshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes Xi: Irritant;
Risk Phrases 10-36/37/38
Safety Phrases 16-26-36
RIDADR UN 1325 4.1/PG 3
WGK Germany 3
Packaging Group III
Hazard Class 4.1
HS Code 2903999090

 Customs

HS Code 2903999090
Summary 2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

 Articles3

More Articles
Synthesis of glycidyl triazolyl polymers using click chemistry. Jung JH, et al.

Tetrahedron Lett. 48(37) , 6442-6448, (2007)

Sulfonated poly (arylene ether) membranes containing perfluorocyclobutyl and ethynyl groups: Increased mechanical strength through chain extension and crosslinking. Lee SB, et al.

J. Membr. Sci. 456 , 49-56, (2014)

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)

 Synonyms

2,4-difluorophenylethyne
1-ethynyl-2,4-difluoro-benzene
(2,4-difluorophenyl)acetylene
2,4-difluoroethynylbenzene
4-(2,4-difluorophenyl)but-3-yn-2-ol
MFCD02093726
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