| E-0602 | (Des-Tyr1)-Leu-Enkephalin | C19H28N4O5 | 392.46 | 60254-83-3 | H-Gly-Gly-Phe-Leu-OH |
| E-0603 | (Des-Tyr1)-Met-Enkephalin | C18H26N4O5S | 410.49 | 61370-88-5 | H-Gly-Gly-Phe-Met-OH |
| E-0701 | (D-Ala2,D-Leu5)-Enkephalin amide | C29H40N6O6 | 568.67 | 66609-26-5 | H-Tyr-D-Ala-Gly-Phe-D-Leu-NH2 |
| E-0701-2 | Leu-Enkephalin α-Neoendorphin (1-5), Dynorphin A (1-5) |
C28H37N5O7 | 555.63 | 58822-25-6 | H-Tyr-Gly-Gly-Phe-Leu-OH |
| E-0701-3 | Leu-Enkephalin (sulfated) | C28H37N5O10S | 635.70 | 80632-52-6 | H-Tyr(SO3H)-Gly-Gly-Phe-Leu-OH |
| E-0701-4 | (Ala2)-Leu-Enkephalin | C29H39N5O7 | 569.66 | 60284-47-1 | H-Tyr-Ala-Gly-Phe-Leu-OH |
| E-0701-5 | (D-Ala2)-Leu-Enkephalin | C29H39N5O7 | 569.66 | 64963-01-5 | H-Tyr-D-Ala-Gly-Phe-Leu-OH |
| E-0701-6 | (3,5-Dibromo-Tyr1)-Leu-Enkephalin | C28H35Br2N5O7 | 713.42 | 72601-98-0 | H-3,5-Dibromo-Tyr-Gly-Gly-Phe-Leu-OH |
| E-0701-7 | Boc-Leu-Enkephalin | C33H45N5O9 | 655.75 | 64963-27-5 | Boc-Tyr-Gly-Gly-Phe-Leu-OH |
| E-0701-8 | Leu-Enkephalin amide α-Neoendorphin (1-5) amide, Dynorphin A (1-5) amide |
C28H38N6O6 | 554.65 | 60117-24-0 | H-Tyr-Gly-Gly-Phe-Leu-NH2 |
