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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 2777057Generated: October 25, 2026

2,4,5-Trifluorobenzyl Bromide

1-(BROMOMETHYL)-2,4,5-TRIFLUOROBENZENE · 2,4,5-Trifluorobenzy · 1-(Bromomethyl)-2,4,5-trifluorobenzene, alpha-Bromo-2,4,5-trifluorotoluene · CAS:157911-56-3 · 5-Trifluorobenzyl broMide · 2,4,5-TRIFLUOROBENZYL BROMIDE · à-bromo-2,4,5-trifluorotoluene · 2,4,5-Trifluorobenzylbromide97%

https://huagongshe.com/en/chemical/2777057

2,4,5-Trifluorobenzyl Bromide molecular structure

Identifiers & Physical Properties

CAS No.157911-56-3
Molecular formulaC7H4BrF3
Average molar mass225.01 g/mol
Monoisotopic mass223.94484689 g/mol
SMILESFc1cc(F)c(CBr)cc1F
InChIKeyGAUXEYCSWSMMFZ-UHFFFAOYSA-N
PubChem CID2777057
EC No.642-693-8
DTXSIDDTXSID60380355

Chemical & Physical Properties

XLogP2.8
Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms11
Formal charge0
Complexity131
Boiling point188.8±35.0 °C(Predicted)
Density1.71
Refractive index1.5015
Storage conditionsInert atmosphere,Room Temperature
Physical stateclear liquid
ColorColorless to Light yellow
Specific gravity1.71
SensitivityLachrymatory
BRN8312091
InChIInChI=1S/C7H4BrF3/c8-3-4-1-6(10)7(11)2-5(4)9/h1-2H,3H2
InChIKeyGAUXEYCSWSMMFZ-UHFFFAOYSA-N
SMILESC1(CBr)=CC(F)=C(F)C=C1F
CAS DataBase Reference157911-56-3(CAS DataBase Reference)
GHS pictogramGHS05
Signal wordDanger
GHS hazard statementsH314-H318
GHS precautionary statementsP260h-P301+P330+P331-P303+P361+P353-P305+P351+P338-P405-P501a
Hazard symbolsC,T
Risk statements (R)34-36-25
Safety statements (S)26-36/37/39-45-23-20
UN transport number1760
Hazard NoteCorrosive/Lachrymatory
TSCA inventory statusT
Hazard class8
Packing groupII
Customs code29039990
Limited quantities5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationDangerH290 (14.3%): May be corrosive to metals [Warning Corrosive to Metals]P234, P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P337+P317, P363, P390, P403+P233, P405, P406, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 7 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesMet. Corr. 1 (14.3%)
TSCA inventory statusT
UN transport number1760
Customs code29039990
Risk statements (R)34-36-25
Signal wordDanger
GHS pictogramGHS05
Hazard symbolsC,T
hazard_noteCorrosive/Lachrymatory
Safety statements (S)26-36/37/39-45-23-20
Hazard class8
Packing groupII
GHS hazard statementsH314-H318
Limited quantities5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
GHS precautionary statementsP260h-P301+P330+P331-P303+P361+P353-P305+P351+P338-P405-P501a

Applications & Uses

Uses

2,4,5-trifluorobenzyl bromide is an important intermediate in the synthesis of Ensitrelvir (S-217622). Ensitrelvir is the latest oral drug developed by Japan's Shionogi Pharmaceutical Company to treat COVID-19. It is the first orally active, non-covalent, non-peptide SARS-CoV-23CL protease inhibitor.