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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 76593Generated: October 23, 2026

2,3,4-Tribromothiophene

Tribromothiophene · BUTTPARK 29\09-41 · SALOR-INT L132055-1EA · 2,3,4-TRIBROMOTHIOPHENE · Acenocoumarol Impurity 18 · Thiophene, 2,3,4-tribromo- · 2,3,4-Tribromothiophene,97% · 2,3,4-TRIBROMOTHIOPHENE 95%

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2,3,4-Tribromothiophene molecular structure

Identifiers & Physical Properties

CAS No.3141-25-1
Molecular formulaC4HBr3S
Average molar mass320.83 g/mol
Monoisotopic mass317.73490733 g/mol
SMILESBrc1csc(Br)c1Br
InChIKeyZDXQFDMBZUQHOM-UHFFFAOYSA-N
PubChem CID76593
EC No.221-545-2
DTXSIDDTXSID90185335

Chemical & Physical Properties

XLogP4
Topological polar surface area28.2
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds0
Heavy atoms8
Formal charge0
Complexity87.4
SpringerMaterials PropertiesNuclear quadrupole resonance spectroscopy
Melting point43-45°C
Boiling point150-152°C 20mm
Density2.516±0.06 g/cm3(Predicted)
Flash point150-152°C/20mm
Storage conditionsunder inert gas (nitrogen or Argon) at 2–8 °C
AppearanceWhite to off-white Solid
BRN111770
CAS DataBase Reference3141-25-1(CAS DataBase Reference)
NIST Chemistry Reference2,3,4-Tribromothiophene(3141-25-1)
GHS pictogramGHS07
Signal wordDanger
GHS hazard statementsH302-H312-H332
GHS precautionary statementsP261-P280h-P301+P312a-P304+P340-P321-P501a
Hazard symbolsXi
Risk statements (R)20/21/22
Safety statements (S)22-36/37
UN transport number2811
Hazard NoteIrritant
Hazard class6.1
Packing groupIII
Customs code2934999090

Safety & Regulations

GHS classificationWarningH315 (97.4%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 39 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Irrit. 2 (97.4%)
UN transport number2811
Customs code2934999090
Risk statements (R)20/21/22
Signal wordDanger
GHS pictogramGHS07
Hazard symbolsXi
hazard_noteIrritant
Safety statements (S)22-36/37
Hazard class6.1
Packing groupIII
GHS hazard statementsH302-H312-H332
GHS precautionary statementsP261-P280h-P301+P312a-P304+P340-P321-P501a

Applications & Uses

Uses

2,3,4-Tribromothiophene (CAS# 3141-25-1) can be used in various applications in synthesis of thiophene-fused dinapthopentaphene. It can also be used for synergy in electrocatalysis, for instance, electrocatalytic reduction on gold and silver electrodes.