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Back ChemicalBook Home>CAS DataBase List>617-54-9More Spectrum> CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

617-54-9

CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

Molecular FormulaC7H10O4

Molecular Weight158.15

InChIInChI=1S/C7H10O4/c1-5(7(9)11-3)4-6(8)10-2/h4H,1-3H3/b5-4-

InChIKey WQEXBUQDXKPVHR-PLNGDYQASA-N

SmilesC(OC)(=O)/C(/C)=C\C(OC)=O

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2
    Mass

    MS-NW-2212          
    dimethyl citraconate
    C7H10O4             (Mass of molecular ion:    158)
    

       Source Temperature: 270 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          15.0      23.6
          27.0       4.6
          28.0       1.6
          29.0      14.5
          31.0       2.9
          32.0       1.0
          37.0       1.2
          38.0       3.3
          39.0      20.4
          40.0       9.5
          41.0       3.8
          43.0       2.2
          53.0       3.4
          55.0       4.4
          59.0      36.3
          67.0       4.5
          68.0      10.7
          69.0       7.4
          71.0       1.5
          85.0       1.7
          96.0       1.0
          98.0       3.6
          99.0      22.0
         100.0       2.0
         126.0       9.5
         127.0     100.0
         128.0       8.5
         143.0       1.5
         158.0       2.6
    

parameter in CCl4

90 MHz in CDCl3

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

    1H NMR 300 MHz
    C7 H10 O4 10 % in CCl4
    dimethyl citraconate
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 5.77 D(B) 2.03 J(A,B) -1.64 D(C) 3.72 D(D) 3.68 FRASER,R.R. & MCGREER,D.E. CAN.J.CHEM. 39, 505 (1961) D(C) AND D(D) MAY BE REVERSED.

         Hz     ppm     Int.
    

       1733.48   5.778     50
       1731.82   5.773    134
       1730.21   5.767    134
       1728.59   5.762     50
       1115.99   3.720   1000
       1104.04   3.680   1000
        609.81   2.033    526
        608.23   2.027    525
    

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

    1H NMR 89.56 MHz
    C7 H10 O4 0.04 ml : 0.5 ml CDCl3
    dimethyl citraconate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 5.867 B *1 3.827 C *1 3.724 D 2.064 J(A,D)=-1.6HZ

         Hz     ppm     Int.
    

        528.00   5.896     23
        526.38   5.878     78
        524.69   5.859     80
        523.06   5.841     25
        342.75   3.828   1000
        333.56   3.725    720
        185.63   2.073    341
        184.00   2.055    340
    

in CDCl3

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

CCl4 solution

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

liquid film

  • CITRACONIC ACID DIMETHYL ESTER(617-54-9) IR2

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