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D39207

Sigma-Aldrich

trans-1,4-Dibromo-2-butene

99%

Synonym(s):

(2E)-1,4-Dibromo-2-butene, (2E)-1,4-Dibromobut-2-ene, 1,4-Dibromo-2-(E)-butene

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About This Item

Linear Formula:
BrCH2CH=CHCH2Br
CAS Number:
821-06-7
Molecular Weight:
213.90
Beilstein:
1719696
EC Number:
212-472-7
MDL number:
MFCD00000249
UNSPSC Code:
12352100
PubChem Substance ID:
24893800
NACRES:
NA.22

Assay

99%

form

crystals

bp

205 °C (lit.)

mp

48-51 °C (lit.)

storage temp.

2-8°C

SMILES string

BrC\C=C\CBr

InChI

1S/C4H6Br2/c5-3-1-2-4-6/h1-2H,3-4H2/b2-1+

InChI key

RMXLHIUHKIVPAB-OWOJBTEDSA-N

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Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H301,H314

Hazard Classifications

Acute Tox. 3 Oral - Skin Corr. 1B

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Sigma-Aldrich

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2,3-Dibromopropene

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A series of side-chain functionalized polytetrahydrofuran (PTHF) derivatives were synthesized via the blue-light photocatalytic thiol-ene "click" reaction. Firstly, unsaturated polytetrahydrofuran (UPTHF) as a new unsaturated polyether was synthesized via condensation polymerization of cis-2-butene-1,4-diol and trans-1,4-dibromo-2-butene using potassium hydroxide (KOH) as

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