ChemicalBook > CAS DataBase List > (E)-1,4-Dibromobut-2-ene

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

Product Name
(E)-1,4-Dibromobut-2-ene
CAS No.
821-06-7
Chemical Name
(E)-1,4-Dibromobut-2-ene
Synonyms
trans-1,4-Dibromo-2-butene;Dibromobutene;4-DibroMo-2-butene;1,4-Dibromo-1-butene;(E)-1,4-Dibromobut-2;1,4-DIBROMO-2-PENTENE;4-dibromo-(e)-2-buten; 1,4-dibromo-, trans-;1,4-Dibromo-2-butene, E;4-dibromo-trans-2-buten
CBNumber
CB3312702
Molecular Formula
C4H6Br2
Formula Weight
213.9
MOL File
821-06-7.mol
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(E)-1,4-Dibromobut-2-ene Property

Melting point:
48-51 °C(lit.)
Boiling point:
205 °C(lit.)
Density 
1.9393 (estimate)
refractive index 
1.5361 (estimate)
Flash point:
113°C
storage temp. 
2-8°C
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
Crystals or Crystalline Powder
color 
colorless to slightly brown
Water Solubility 
slightly soluble
BRN 
1719696
Stability:
Light Sensitive
InChIKey
RMXLHIUHKIVPAB-OWOJBTEDSA-N
CAS DataBase Reference
821-06-7(CAS DataBase Reference)
NIST Chemistry Reference
2-Butene, 1,4-dibromo-, (E)-(821-06-7)
EPA Substance Registry System
2-Butene, 1,4-dibromo-, (2E)- (821-06-7)
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Safety

Hazard Codes 
T,C
Risk Statements 
25-34-23/25
Safety Statements 
26-36/37/39-45-28A
RIDADR 
UN 2923 8/PG 2
WGK Germany 
2
RTECS 
EM4725000
F 
8-19
Hazard Note 
Toxic/Corrosive
HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
29033990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
D39207
Product name
trans-1,4-Dibromo-2-butene
Purity
99%
Packaging
25g
Price
$97.9
Updated
2024/03/01
Sigma-Aldrich
Product number
D39207
Product name
trans-1,4-Dibromo-2-butene
Purity
99%
Packaging
100g
Price
$125
Updated
2024/03/01
TCI Chemical
Product number
D2944
Product name
trans-1,4-Dibromo-2-butene
Packaging
25G
Price
$75
Updated
2024/03/01
TCI Chemical
Product number
D2944
Product name
trans-1,4-Dibromo-2-butene
Packaging
250G
Price
$563
Updated
2024/03/01
TRC
Product number
D425545
Product name
(2E)-1,4-Dibromo-2-butene
Packaging
250g
Price
$410
Updated
2021/12/16
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(E)-1,4-Dibromobut-2-ene Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystal powde

Uses

(2E)-1,4-Dibromo-2-butene, is used as a reagent in the preparation of diaminoalkenes though copper-mediated diamination reaction.

Synthesis Reference(s)

The Journal of Organic Chemistry, 36, p. 3324, 1971 DOI: 10.1021/jo00821a012

General Description

Crystals or white crystalline solid.

Air & Water Reactions

(E)-1,4-Dibromobut-2-ene may be sensitive to exposure to light and air. Insoluble in water.

Reactivity Profile

(E)-1,4-Dibromobut-2-ene is incompatible with strong oxidizers and strong bases.

Fire Hazard

(E)-1,4-Dibromobut-2-ene is probably combustible.

Purification Methods

Crystallise the dibromide from ligroin and/or distil it in a vacuum. [Beilstein 1 IV 79.]

(E)-1,4-Dibromobut-2-ene Preparation Products And Raw materials

Raw materials

Preparation Products

1,4-dibromo-2,3-butanediol DL-Dithiothreitol
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(E)-1,4-Dibromobut-2-ene Suppliers

Americas 1 Belgium 1 China 294 Czech Republic 1 Europe 3 Germany 3 India 13 Japan 1 Slovakia 1 Switzerland 2 United Kingdom 11 United States 26 Global 357
CHEMOS GmbH & Co. KG
Tel
--
Fax
--
Email
chemos@chemos.de
Country
Germany
ProdList
6727
Advantage
58
ABCR GmbH & CO. KG
Tel
--
Fax
--
Email
info@abcr.de
Country
Germany
ProdList
6831
Advantage
75
Service Chemical Inc.
Tel
--
Fax
--
Email
sales@chemos-group.com
Country
Germany
ProdList
6350
Advantage
71
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View Lastest Price from (E)-1,4-Dibromobut-2-ene manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
(E)-1,4-Dibromobut-2-ene 821-06-7
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-24
Henan Fengda Chemical Co., Ltd
Product
(E)-1,4-Dibromobut-2-ene 821-06-7
Price
US $100.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-26
Hebei Mojin Biotechnology Co., Ltd
Product
(E)-1,4-Dibromobut-2-ene 821-06-7
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-10-13

821-06-7, (E)-1,4-Dibromobut-2-eneRelated Search:

CIS-BUTENEDIOIC ANHYDRIDE Maleic acid CIS-2-BUTENE Fumaric acid 1,3-Dibromo-5,5-dimethylhydantoin 1,3-Dibromopropane 2-Butene 3-METHYL-3-BUTEN-1-OL trans,trans-2,4-Undecadienal 1-BUTENE TRAUMATIC ACID TRANS-2-OCTENOIC ACID trans-2-Octenoic acid methyl ester trans-2-Pentenal (+/-)-trans-1,2-Diaminocyclohexane TRANS-1,4-CYCLOHEXANEDIOL trans-1,2-Cyclopentanediol TRANS-CYCLOBUTANE-1,2-DICARBOXYLIC ACID

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  • (E)-1,4-Dibromo-2-butene
  • 1,4-Dibromo-2-butene, E
  • 1,4-trans-Dibromobutene-2
  • 2-Butene, 1,4-dibromo-, trans-
  • 4-dibromo-(e)-2-buten
  • 1,4-DIBROMO-2-PENTENE
  • Trans1butene4-dibroMo -2-
  • trans-1,4-DibroMo-2-butene 99%
  • 1,4-dibroMo-2-butene (trans)
  • <i>trans</i>-1,4-Dibromo-2-butene
  • Tran-1,4-Dibromo-2-Butylene
  • 4-dibromo-trans-2-buten
  • Dibromobutene
  • 1,4-DIBROMO-2-BUTENE, 99%, PREDOMINANTLY TRANS
  • 1,4-Dibromo-2-Butene,~97%
  • 2-Butene, 1,4-dibromo-, (2E)-
  • 1,4-Dibromo-1-butene
  • 4-dibromo- trans-2-butene
  • 1,4-dibromo-, trans-
  • (E)-1,4-Dibromobut-2-ene
  • trans-1,4-Dibromo-2-butene
  • trans-1,4-DibroMo-2-butene, 97% 100GR
  • trans-1,4-DibroMo-2-butene, 97% 25GR
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  • trans-1,4-Dibromo-2-butene,97%
  • trans-1,4-Dibromo-2-butene ,99%
  • (E)-1,4-Dibromobut-2
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  • 4-DibroMo-2-butene
  • trans-1,4-Dibromo-2-butene&gt
  • trans-1,4-Dibrombut-2-en
  • (E)-1,4-Dibromobut-2-ene ISO 9001：2015 REACH
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  • TIANFUCHEM--821-06-7---(E)-1,4-Dibromobut-2-ene
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  • bc0001
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