N-Ethylmaleimide(128-53-0) IR1

Product NameN-Ethylmaleimide

CAS 128-53-0

Molecular FormulaC6H7NO2

Molecular Weight125.13

InChIInChI=1S/C6H7NO2/c1-2-7-5(8)3-4-6(7)9/h3-4H,2H2,1H3

InChIKey HDFGOPSGAURCEO-UHFFFAOYSA-N

SmilesN1(CC)C(=O)C=CC1=O

Request For Quotation

Mass

MS-NW-1962          
N-ethylmaleimide
C6H7NO2             (Mass of molecular ion:    125)

   Source Temperature: 230 °C
   Sample Temperature: 180 °C
   Reservoir, 75 eV

      15.0       4.4
      25.0       1.6
      26.0      24.2
      27.0       8.1
      28.0       9.2
      29.0       2.4
      39.0       1.5
      40.0       2.6
      41.0       3.0
      42.0       9.5
      43.0       1.0
      44.0       5.8
      52.0       1.4
      53.0       7.1
      54.0      30.2
      55.0       9.0
      56.0      10.8
      68.0       1.0
      69.0       2.9
      70.0       2.1
      71.0       1.1
      80.0       4.5
      82.0      22.9
      83.0       1.2
      96.0       4.8
      97.0       1.2
      98.0       1.4
     110.0     100.0
     111.0       5.8
     124.0       1.5
     125.0      49.2
     126.0       3.5

parameter in CDCl3

¹H NMR	300 MHz
C₆ H₇ N O₂	10.6 mol% in CDCl₃
N-ethylmaleimide

    Parameter     ppm  Hz

      D(A)         6.715
     
      D(B)         3.575
      D(C)         1.190
       J(B,C)          7.19

     Hz     ppm     Int.

   2014.49   6.715   1000
   1083.35   3.611    120
   1076.17   3.587    368
   1068.99   3.563    373
   1061.81   3.539    128
    364.16   1.214    378
    356.99   1.190    752
    349.81   1.166    363

in CDCl3