FMOC-L-Methionine(71989-28-1) IR2
Product NameFMOC-L-Methionine
CAS71989-28-1
Molecular FormulaC20H21NO4S
Molecular Weight371.45
InChIInChI=1S/C20H21NO4S/c1-26-11-10-18(19(22)23)21-20(24)25-12-17-15-8-4-2-6-13(15)14-7-3-5-9-16(14)17/h2-9,17-18H,10-12H2,1H3,(H,21,24)(H,22,23)/t18-/m0/s1
InChIKey BUBGAUHBELNDEW-SFHVURJKSA-N
SmilesC(O)(=O)[C@H](CCSC)NC(OCC1C2=C(C=CC=C2)C2=C1C=CC=C2)=O
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MassMS-IW-2649 N-((9-fluorenyl)methoxycarbonyl)-L-methionine C20H21NO4S (Mass of molecular ion: 371)
Source Temperature: 190 °C Sample Temperature: 160 °C Direct, 75 eV
18.0 3.6 27.0 1.9 28.0 4.4 39.0 1.7 41.0 3.3 44.0 1.7 45.0 3.0 46.0 1.7 47.0 4.5 48.0 2.2 49.0 1.2 54.0 2.1 55.0 1.8 56.0 5.5 57.0 1.0 59.0 1.2 61.0 10.7 62.0 5.1 63.0 2.9 69.5 1.3 73.0 1.0 74.0 2.9 75.0 12.8 76.0 2.5 77.0 1.0 81.5 1.1 82.0 2.0 82.5 1.9 83.0 1.6 84.0 2.3 85.0 1.1 86.0 2.1 87.0 3.0 88.0 3.1 89.0 2.4 99.0 1.1 100.0 2.5 101.0 3.3 102.0 1.3 114.0 2.9 115.0 3.3 127.0 1.9 129.0 12.3 139.0 5.0 150.0 1.1 151.0 1.8 152.0 2.6 157.0 2.0 162.0 1.4 163.0 11.2 164.0 10.2 165.0 100.0 166.0 77.4 167.0 10.8 175.0 13.2 176.0 4.8 177.0 3.6 178.0 37.0 179.0 7.8 180.0 1.0 196.0 32.6 197.0 5.1
400 MHz in CDCl3
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1H NMR 399.65 MHz C20 H21 N O4 S 0.044 g : 0.5 ml CDCl3 N-((9-fluorenyl)methoxycarbonyl)-L-methionine 
Assign. Shift(ppm)
A 9.37 B 7.740 C 7.58 D 7.54 E 7.378 F 7.296 G 6.59 J 5.538 K 4.51 L 4.416 M 4.207 N 2.54 P 2.42 Q *1 2.19 R 2.075 S 2.027 T *1 1.99 U *1 1.87
Hz ppm Int.3737.49 9.352 34 3097.23 7.750 638 3090.06 7.732 697 3033.29 7.590 194 3029.63 7.581 239 3029.33 7.580 239 3026.12 7.572 269 3022.46 7.563 266 3014.37 7.543 105 2956.85 7.399 281 2949.37 7.380 621 2941.89 7.362 384 2923.13 7.315 336 2922.06 7.312 511 2915.65 7.296 510 2914.58 7.293 747 2908.33 7.278 225 2907.10 7.275 305 2901.92 7.262 32 2901.00 7.259 31 2900.70 7.259 31 2639.77 6.606 34 2639.31 6.605 35 2638.55 6.603 36 2637.79 6.601 35 2637.33 6.600 34 2635.96 6.596 31 2635.19 6.594 30 2634.89 6.593 30 2634.12 6.592 31 2633.06 6.589 34 2632.14 6.587 36 2631.68 6.585 37 2630.92 6.584 35 2217.41 5.549 143 2209.17 5.528 147 1820.37 4.555 53 1815.49 4.543 78 1812.44 4.536 110 1807.56 4.523 121 1804.20 4.515 113 1803.13 4.512 112 1799.93 4.504 127 1797.18 4.497 104 1796.26 4.495 105 1795.81 4.494 105 1786.35 4.470 35 1785.28 4.468 35 1784.82 4.466 35 1784.36 4.465 35 1783.91 4.464 35 1782.99 4.462 34 1781.77 4.459 33 1781.16 4.457 33 1780.70 4.456 34 1779.94 4.454 35 1778.87 4.452 36 1768.65 4.426 310 1761.78 4.409 356 1687.01 4.222 227 1680.45 4.205 324 1673.58 4.188 129 1022.80 2.560 137 1020.36 2.554 112 1015.47 2.541 261 1008.30 2.523 165 1000.52 2.504 32 966.95 2.420 67 889.74 2.227 39 888.52 2.224 45 887.76 2.222 47 887.15 2.220 46 886.08 2.218 41 885.31 2.216 40 881.50 2.206 67 873.87 2.187 75 868.53 2.174 62 860.75 2.154 30 829.32 2.076 1000 820.77 2.054 116 819.70 2.052 115 810.24 2.028 262 798.65 1.999 124 795.29 1.990 79 791.63 1.981 107 787.81 1.972 61 784.61 1.964 72 779.88 1.952 32 779.42 1.951 31 777.74 1.947 33 777.28 1.945 32 776.82 1.944 31
in CDCl3
KBr disc
nujol mull
