(RS)-AMPA hydrobromide Agonist Very selective, potent AMPA agonist
(±)-trans-ACPD Agonist Potent NMDA agonist. Also group II mGluR agonist
(S)-(-)-5-Fluorowillardiine Agonist Very potent AMPA agonist
(S)-4-Carboxyphenylglycine Antagonist Competitive group I mGluR antagonist/weak group II agonist
2-APB Modulator TRP channel modulator. Also IP3 receptor antagonist

2-Methylthioadenosine triphosphate tetrasodium salt

P2 purinergic agonist
Potent muscarine agonist-activates the activity of the muscarinic acetylcholine receptor
Acetylcholine chloride
Endogenous neurotransmitter
Acts at nicotinic and muscarinic acetylcholine receptors
AM 404 Modulator Vanilloid receptor agonist. Also anandamide transport inhibitor
BAN ORL 24 Antagonist Potent and selective NOP receptor antagonist
BRL 52537 hydrochloride Ligand Potent and selective κ opioid receptor agonist
CHPG Agonist Potent mGluR5 metabotropic glutamate receptor agonist
CNQX Antagonist Potent AMPA/kainate antagonist
CTAP Antagonist Potent and selective μ opioid receptor antagonist (IC50 = 3.5 nM).
Clocinnamox mesylate Antagonist Irreversible μ-opioid receptor antagonist
Endomorphin-1 Agonist Potent and selective μ opioid receptor agonist
Endomorphin-2 Agonist Potent and selective μ opioid receptor agonist
FIT Agonist Irreversible δ opioid receptor agonist
GBR 13069 dihydrochloride Agonist Potent dopamine uptake inhibitor
L-NIO dihydrochloride Inhibitor Potent eNOS inhibitor
L-Quisqualic acid Agonist Very potent group I mGluR agonist
McN-A 343 Agonist Selectivity for M1 over other muscarinic receptor types appears to arise from a high efficacy at M1 receptors.
N-Benzylnaltrindole hydrochloride Agonist Opioid receptor selective non-peptide antagonist
Nociceptin Inhibitor Endogenous NOP agonist
Nocistatin or NST Inhibitor Pain Transmission Inhibitor
O-Phospho-L-serine Antagonist Group III mGluR agonist; enhances neuronal differentiation
Ro 51 Antagonist Potent P2X3, P2X2/3 antagonist
cis-ACPD Agonist Potent NMDA agonist. Also group II mGluR agonist
Theanine  Receptor Binding  Binds to AMPA, Kainate, NMDA and group I mGlu receptors
VU 0255035 Antagonist Highly selective muscarinic M1 antagonist
VU 0357017 hydrochloride  Modulator Positive allosteric modulator of M1 receptors
Zebularine  Inhibitor Inhibits tumor cell proliferation