Fmoc-Leu-OH(35661-60-0) IR1

Molecular FormulaC21H23NO4

Molecular Weight353.41

InChIInChI=1S/C21H23NO4/c1-13(2)11-19(20(23)24)22-21(25)26-12-18-16-9-5-3-7-14(16)15-8-4-6-10-17(15)18/h3-10,13,18-19H,11-12H2,1-2H3,(H,22,25)(H,23,24)/t19-/m0/s1

InChIKey CBPJQFCAFFNICX-IBGZPJMESA-N

SmilesC(O)(=O)[C@H](CC(C)C)NC(OCC1C2=C(C=CC=C2)C2=C1C=CC=C2)=O

Request For Quotation

Mass

MS-IW-2631          
N-((9-fluorenyl)methoxycarbonyl)-L-leucine
C21H23NO4           (Mass of molecular ion:    353)

   Source Temperature: 170 °C
   Sample Temperature: 160 °C
   Direct, 75 eV

      27.0       3.7
      28.0       6.0
      29.0       6.5
      30.0       1.1
      39.0       4.3
      41.0      11.6
      42.0       2.7
      43.0      26.4
      44.0       2.6
      51.0       1.3
      55.0       2.2
      56.0       1.1
      57.0      17.5
      62.0       1.1
      63.0       2.8
      69.0       2.0
      69.5       1.7
      70.0       3.9
      73.0       2.1
      74.0       2.1
      75.0       1.7
      76.0       2.2
      81.5       1.3
      82.0       1.5
      82.5       2.3
      83.0       2.0
      85.0       1.8
      86.0       2.0
      87.0       2.4
      88.0       2.2
      89.0       2.5
      99.0       1.4
     101.0      15.3
     112.0       3.0
     113.0       1.4
     115.0       3.5
     139.0       5.3
     150.0       1.1
     151.0       1.9
     152.0       2.8
     162.0       1.4
     163.0      11.3
     164.0      10.5
     165.0     100.0
     166.0      76.0
     167.0      10.7
     176.0       3.8
     177.0       3.0
     178.0      35.7
     179.0       6.8
     196.0      31.9
     197.0       4.7

400 MHz in CDCl3

¹H NMR	399.65 MHz
C₂₁ H₂₃ N O₄	0.033 g : 0.5 ml CDCl₃
N-((9-fluorenyl)methoxycarbonyl)-L-leucine

    Assign.     Shift(ppm)

      A            10.0
      B             7.74
      C             7.58
      D             7.54
      E             7.38
      F             7.30
      G             6.10
      J             5.21
      K             4.48
      L             4.41
      M             4.211
      N             4.10
      P             1.72
      Q     *1      1.68
      R     *1      1.56
      S             0.950
      T     *2      0.894
      U     *2      0.842

     Hz     ppm     Int.

   3099.06   7.755    342
   3091.43   7.736    432
   3036.19   7.598    180
   3029.33   7.580    264
   3024.14   7.567    229
   3015.44   7.546     73
   3014.83   7.544     73
   3010.86   7.534     57
   3010.41   7.533     58
   3007.97   7.527     62
   2957.61   7.401    163
   2950.29   7.383    385
   2942.81   7.364    282
   2922.52   7.313    261
   2915.04   7.294    425
   2907.71   7.276    221
   2085.11   5.218    146
   2076.42   5.196    155
   1788.48   4.476     42
   1786.19   4.470     39
   1785.58   4.468     38
   1779.33   4.453     71
   1776.73   4.446     90
   1771.85   4.434    151
   1768.65   4.426    308
   1766.36   4.420    311
   1761.78   4.409    333
   1759.49   4.403    302
   1748.66   4.376     41
   1689.61   4.228    130
   1682.59   4.211    238
   1675.72   4.193    115
    694.58   1.738     56
    683.90   1.712    154
    675.96   1.692    147
    671.39   1.680    120
    667.72   1.671     78
    662.69   1.659     59
    641.94   1.607     35
    632.93   1.584     90
    624.24   1.562    113
    615.39   1.540     67
    612.34   1.533     40
    610.96   1.529     41
    382.69   0.958   1000
    376.74   0.943    989
    360.26   0.902    124
    354.46   0.887    106
    346.98   0.869     43
    339.36   0.850     99
    333.71   0.836     89

in CDCl3