Table 6Summary of in vitro ADME Properties of Kappa opioid Agonist probe(s)

Probe CID
Probe ML# BCCG MLS-#
Aqueous Solubility
(μg/mL)a (@ pH)
PAMPA Pe
(×10−6 cm/s)b (@ Donor pH)
BBB- PAMPA Pe
(x10−6 cm/s)c
Plasma Protein Binding (% Bound)Plasma Stabilityd
Human Mouse/
Hepatic Microsome Stabilitye
Human/Mouse
Hepatic Toxicityf
LC50 (μM)
Human
1μM/10μM
Mouse
1μM/10μM
CID33423900.47 (5.0)>1710 (5.0)41999.67/99.7398.90/98.92100/1000.04/0.07>50
ML1400.12 (6.2)>1853 (6.2)
MLS-02399910.79 (7.4)>1944 (7.4)
a

in aqueous buffer, pH’s 5.0/6.2/7.4

b

in aqueous buffer; Donor compartment pH’s 5.0/6.2/7.4; Acceptor compartment pH 7.4

c

in aqueous buffer; Donor compartment pH 7.4; Acceptor compartment pH 7.4

d

% remaining at 3 hr

e

% remaining at 1 hr

f

towards Fa2N-4 immortalized human hepatocytes

From: Selective KOP Receptor Antagonists: Probe 1

Cover of Probe Reports from the NIH Molecular Libraries Program
Probe Reports from the NIH Molecular Libraries Program [Internet].

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