| Identification | More | [Name]
(E)-1,4-Dibromobut-2-ene | [CAS]
821-06-7 | [Synonyms]
1,4-DIBROMO-2-PENTENE
(2E)-1,4-Dibromo-2-butene
(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
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
1,4-Dibromo-(E)-2-butene
1,4-Dibromo-trans-2-butene | [EINECS(EC#)]
212-472-7 | [Molecular Formula]
C4H6Br2 | [MDL Number]
MFCD07783464 | [Molecular Weight]
213.9 | [MOL File]
821-06-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white to light yellow crystal powde | [Melting point ]
48-51 °C(lit.)
| [Boiling point ]
205 °C(lit.)
| [density ]
1.9393 (estimate) | [refractive index ]
1.5361 (estimate) | [Fp ]
113°C | [storage temp. ]
Refrigerator | [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]
821-06-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,C | [Risk Statements ]
R25:Toxic if swallowed.
R34:Causes burns.
R23/25:Toxic by inhalation and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [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 |
| Hazard Information | Back Directory | [General Description]
Crystals or white crystalline solid. | [Reactivity Profile]
(E)-1,4-DIBROMO-2-BUTENE(821-06-7) is incompatible with strong oxidizers and strong bases. | [Air & Water Reactions]
This chemical may be sensitive to exposure to light and air. Insoluble in water. | [Fire Hazard]
This chemical is probably combustible. | [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 | [Purification Methods]
Crystallise the dibromide from ligroin and/or distil it in a vacuum. [Beilstein 1 IV 79.] |
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