6-Hydroxyflavanone
BAM-12P
2,6-Dimethyl-L-tyrosine
Opioid receptor modulator 1
KK-103
CSD-CH2(1,8)-NH2
β-Endorphin (1-27) (human)
Dynorphin B (1-9)
Helianorphin-19
Dynorphin A (1-13) amide
(N-Me-Tyr1,N-Me-Arg7,D-Leu-NHEt8)-Dynorphin A (1-8)
H-Ser-Tyr-OH
Bilaid C
Dalargin
DALDA
DALDA TFA
Peptide E
Nocistatin
CR 665
Dynorphin (2-17), amide (porcine)