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2-BROMO-2-BUTENE is an organic compound with the chemical formula C4H7Br. It is a clear yellow to brownish liquid and is known for its reactivity in organic synthesis.

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  • 13294-71-8 Structure
  • Basic information

    1. Product Name: 2-BROMO-2-BUTENE
    2. Synonyms: 2-BROMO-2-BUTENE;2-BROMO-TRANS-2-BUTENE;TRANS-2-BROMO-2-BUTENE;2-Bromo-2-butene (cis+trans);2-Bromo-2-butene, mixture of cis and trans;Bromobutenecistrans;2-bromobut-2-ene;2-BROMO-2-BUTENE, 98%, MIXTURE OF CIS AN D TRANS
    3. CAS NO:13294-71-8
    4. Molecular Formula: C4H7Br
    5. Molecular Weight: 135
    6. EINECS: 236-316-2
    7. Product Categories: Alkenyl;Halogenated Hydrocarbons;Organic Building Blocks
    8. Mol File: 13294-71-8.mol
  • Chemical Properties

    1. Melting Point: -115.07°C (estimate)
    2. Boiling Point: 91-92 °C(lit.)
    3. Flash Point: 34 °F
    4. Appearance: Clear yellow to brownish/Liquid
    5. Density: 1.331 g/mL at 25 °C(lit.)
    6. Vapor Pressure: 55.2mmHg at 25°C
    7. Refractive Index: n20/D 1.461(lit.)
    8. Storage Temp.: 2-8°C
    9. Solubility: N/A
    10. Water Solubility: Not miscible or difficult to mix in water (664 mg/L 25 EST).
    11. BRN: 1733329
    12. CAS DataBase Reference: 2-BROMO-2-BUTENE(CAS DataBase Reference)
    13. NIST Chemistry Reference: 2-BROMO-2-BUTENE(13294-71-8)
    14. EPA Substance Registry System: 2-BROMO-2-BUTENE(13294-71-8)
  • Safety Data

    1. Hazard Codes: F
    2. Statements: 11
    3. Safety Statements: 16-29-33
    4. RIDADR: UN 1993 3/PG 2
    5. WGK Germany: 3
    6. RTECS:
    7. TSCA: T
    8. HazardClass: 3
    9. PackingGroup: II
    10. Hazardous Substances Data: 13294-71-8(Hazardous Substances Data)

13294-71-8 Usage

Uses

Used in Chemical Synthesis:
2-BROMO-2-BUTENE is used as a reagent in the synthesis of substituted catechol derivatives and mono-annelated benzenes. Its reactivity allows for the formation of various organic compounds with potential applications in different industries.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 2-BROMO-2-BUTENE is used as a building block for the synthesis of various drug molecules. Its ability to undergo various chemical reactions makes it a valuable intermediate in the development of new pharmaceutical compounds.
Used in Chemical Research:
2-BROMO-2-BUTENE is also used in chemical research as a model compound to study various organic reactions and mechanisms. Its reactivity and stability make it an ideal candidate for understanding the behavior of similar compounds in different reaction conditions.

Synthesis Reference(s)

The Journal of Organic Chemistry, 43, p. 3076, 1978 DOI: 10.1021/jo00409a038

Check Digit Verification of cas no

The CAS Registry Mumber 13294-71-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,9 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13294-71:
(7*1)+(6*3)+(5*2)+(4*9)+(3*4)+(2*7)+(1*1)=98
98 % 10 = 8
So 13294-71-8 is a valid CAS Registry Number.
InChI:InChI=1/C4H7Br/c1-3-4(2)5/h3H,1-2H3/b4-3+

13294-71-8 Well-known Company Product Price

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  • (Code)Product description
  • CAS number
  • Packaging
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  • Alfa Aesar

  • (A18058)  2-Bromo-2-butene, cis + trans, 98%, stab.   

  • 13294-71-8

  • 25g

  • 609.0CNY

  • Detail
  • Alfa Aesar

  • (A18058)  2-Bromo-2-butene, cis + trans, 98%, stab.   

  • 13294-71-8

  • 100g

  • 2258.0CNY

  • Detail
  • Aldrich

  • (215562)  2-Bromo-2-butene,mixtureofcisandtrans  98%

  • 13294-71-8

  • 215562-25G

  • 683.28CNY

  • Detail
  • Aldrich

  • (215562)  2-Bromo-2-butene,mixtureofcisandtrans  98%

  • 13294-71-8

  • 215562-100G

  • 2,303.73CNY

  • Detail
  • Aldrich

  • (215562)  2-Bromo-2-butene,mixtureofcisandtrans  98%

  • 13294-71-8

  • 215562-500G

  • 7,973.55CNY

  • Detail

13294-71-8Relevant articles and documents

Synthesis of Tetraalkylcyclopentadienes

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Page column 1-2, (2008/06/13)

A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid to produce 3,5-dimethyl-2,5-hepadiene-4-ol.

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