| E-1101 | Boc-YPGFLT | C40H56N6O11 | 796.92 | 141261-96-3 | Boc-Tyr-Pro-Gly-Phe-Leu-Thr-OH |
| E-1102 | (D-Ala2,D-Leu5)-Enkephalin, DADLE | C29H39N5O7 | 569.66 | 63631-40-3 | H-Tyr-D-Ala-Gly-Phe-D-Leu-OH |
| E-1103 | (D-Ala2,N-Me-Phe4,glycinol5)-Enkephalin, DAGO, DAMGO | C26H35N5O6 | 513.59 | 100929-53-1 | H-Tyr-D-Ala-Gly-N-Me-Phe-glycinol |
| E-1104 | (3,5-Diiodo-Tyr1,D-Ala2,N-Me-Phe4,glycinol5)-Enkephalin, (3,5-Diiodo-Tyr1)-DAGO | C26H33I2N5O6 | 765.39 | 103213-42-9 | H-3,5-Diiodo-Tyr-D-Ala-Gly-N-Me-Phe-glycinol |
| E-1105 | (D-Pen2,p-chloro-Phe4,D-Pen5)-Enkephalin, (pCl-Phe4)-DPDPE | C30H38ClN5O7S2 | 680.25 | 122507-47-5 | H-Tyr-D-Pen-Gly-p-chloro-Phe-D-Pen-OH (Disulfide bond) |
| E-1106 | (D-Pen2,Pen5)-Enkephalin, DPLPE | C30H39N5O7S2 | 645.80 | 88373-72-2 | H-Tyr-D-Pen-Gly-Phe-Pen-OH (Disulfide bond) |
| E-1107 | (D-Pen2,D-Pen5)-Enkephalin, DPDPE | C30H39N5O7S2 | 645.80 | 88373-73-3 | H-Tyr-D-Pen-Gly-Phe-D-Pen-OH (Disulfide bond) |
| E-1108 | (3,5-Diiodo-Tyr1,D-Thr2)-Leu-Enkephalin-Thr, (3,5-Diiodo-Tyr1)-DTLET | C34H46I2N6O10 | 952.58 | 103213-63-4 | H-3,5-Diiodo-Tyr-D-Thr-Gly-Phe-Leu-Thr-OH |
| E-1109 | (D-Ser2)-Leu-Enkephalin-Thr, DSLET | C33H46N6O10 | 686.76 | 75644-90-5 | H-Tyr-D-Ser-Gly-Phe-Leu-Thr-OH |
| E-1110 | (D-Thr2)-Leu-Enkephalin-Thr, DTLET, Deltakephalin | C34H48N6O10 | 700.79 | 85286-38-0 | H-Tyr-D-Thr-Gly-Phe-Leu-Thr-OH |
