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CAS

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128839-04-3

[(1E)-4,4-diethoxybut-1-en-1-yl]benzene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 128839-04-3 Structure

  • Basic information

    1. Product Name: [(1E)-4,4-diethoxybut-1-en-1-yl]benzene
    2. Synonyms:
    3. CAS NO:128839-04-3
    4. Molecular Formula:
    5. Molecular Weight: 220.312
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 128839-04-3.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: [(1E)-4,4-diethoxybut-1-en-1-yl]benzene(CAS DataBase Reference)
    10. NIST Chemistry Reference: [(1E)-4,4-diethoxybut-1-en-1-yl]benzene(128839-04-3)
    11. EPA Substance Registry System: [(1E)-4,4-diethoxybut-1-en-1-yl]benzene(128839-04-3)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 128839-04-3(Hazardous Substances Data)

128839-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128839-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,3 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128839-04:
(8*1)+(7*2)+(6*8)+(5*8)+(4*3)+(3*9)+(2*0)+(1*4)=153
153 % 10 = 3
So 128839-04-3 is a valid CAS Registry Number.

128839-04-3Downstream Products

128839-04-3Relevant articles and documents

Synthesis, characterization and primary evaluation of the synthetic efficiency of supported vinyltins and allyltins

Kerric, Gaelle,Grognec, Erwan Le,Fargeas, Valérie,Zammattio, Fran?oise,Quintard, Jean-Paul,Biesemans, Monique,Willem, Rudolph

, p. 1414 - 1424 (2010)

Supported vinyltins and allyltins grafted to an insoluble cross-linked polystyrene matrix were prepared using methods usually employed in solution, like hydrostannylation of alkynes, transmetallation of a tin halide with organomagnesium or organozinc reagents, and substitution of an allyl halide by a supported stannylanion or SN2′ substitution of a supported β-stannylacrolein acetal by cyanocopper reagents in the presence of boron trifluoride etherate. The insoluble grafted organotin reagents were analysed by HRMAS NMR, allowing an unambiguous assignment of their isomeric distribution or the identification of side products. When involved in Stille cross-coupling reactions (vinyltins) or in addition on aldehydes (allyltins), these supported reagents exhibit similar reactivity and similar stereoselectivity when compared to the tributyltin analogues, with the advantage to prevent problems due to the contamination by tin residues.

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