ChemicalBook--->CAS DataBase List--->3140-92-9

3140-92-9

3140-92-9 Structure

3140-92-9 Structure
IdentificationMore
[Name]

2,4-Dibromothiophene
[CAS]

3140-92-9
[Synonyms]

2,4-DIBROMOTHIOPHENE
2,4-Dibromothiophene,94%
2,4-DIBROMOTHIOPHENE, 90+%
2,4-DIBROMOTHIOPHENE 96%
2,4-DIBROMOTHIOPHENE,96%
[EINECS(EC#)]

678-717-9
[Molecular Formula]

C4H2Br2S
[MDL Number]

MFCD00043889
[Molecular Weight]

241.93
[MOL File]

3140-92-9.mol
Chemical PropertiesBack Directory
[Appearance]

clear colorless to light brown liquid
[Melting point ]

-26.3°C
[Boiling point ]

215°C
[density ]

2.14
[refractive index ]

1.631-1.633
[Fp ]

215°C
[storage temp. ]

Keep in dark place,Inert atmosphere,2-8°C
[form ]

liquid
[color ]

Colorless to Light yellow to Light orange
[Specific Gravity]

2.149
[Water Solubility ]

It is insoluble in water.
[BRN ]

107651
[InChI]

InChI=1S/C4H2Br2S/c5-3-1-4(6)7-2-3/h1-2H
[InChIKey]

WAQFYSJKIRRXLP-UHFFFAOYSA-N
[SMILES]

C1(Br)SC=C(Br)C=1
[CAS DataBase Reference]

3140-92-9(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xn,Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[RIDADR ]

UN2810
[WGK Germany ]

3
[Hazard Note ]

Irritant
[HazardClass ]

6.1
[PackingGroup ]

III
[HS Code ]

29349990
[Storage Class]

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
[Hazard Classifications]

Acute Tox. 3 Oral
Eye Dam. 1
Skin Irrit. 2
STOT SE 3
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Diethyl ether-->n-Butyllithium-->2,3,5-Tribromothiophene
[Preparation Products]

2,3-Dibromothiophene-->3-Bromothiophene-->4-Bromothiophene-2-carboxaldehyde-->4-Bromo-2-(methylthio)thiophene
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,4-Dibromothiophene(3140-92-9).msds
Hazard InformationBack Directory
[Chemical Properties]

clear colorless to light brown liquid
[Uses]

2,4-Dibromothiophene is used as an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff. It is also used as an intermediate in organic synthesis.
[Synthesis]

2,3,5-Tribromothiophene (1):

120 g (1.43 mol) of thiophene was added to 240 mL of glacial acetic acid and 687 g (4.30 mol) of Br2 was added dropwise at 5-10 °C, stirred at room temperature for 3 h and heated at reflux for 2 h. The residue was then evapo

Spectrum DetailBack Directory
[Spectrum Detail]

2,4-Dibromothiophene(3140-92-9)1HNMR
2,4-Dibromothiophene(3140-92-9)FT-IR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2,4-Dibromothiophene, 96%(3140-92-9)
[Alfa Aesar]

2,4-Dibromothiophene, 90+%(3140-92-9)
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