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Somatostatin receptor 4 Inhibitors (IC50, Ki)
Structure
Compound Name
Standard Type
Standard Values (in nM)
SomatostatinIC500.08 [1], 1.6 [2], 1.7 [3]
SomatostatinKi0.59 [1], 0.63 [2], 2.0 [3]
(4R,7S,10R,13S,16R,19S,22R,25S,28R,31S,34R,37S)-37-[[2-[[(2S)-2-[[(2S)-6-Amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-4-amino-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]propanoyl]amino]-4-oxobutanoyl]amino]-3-hydroxypropanoyl]amino]-4-oxobutanoyl]pyrrolidine-2-carbonyl]amino]propanoyl]amino]-4-methylsulfanylbutanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-4-carboxybutanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]hexanoyl]amino]propanoyl]amino]acetyl]amino]-19,34-bis(4-aminobutyl)-31-(2-amino-2-oxoethyl)-13,25,28-tribenzyl-10,16-bis[(1R)-1-hydroxyethyl]-7-(hydroxymethyl)-22-(1H-indol-3-ylmethyl)-6,9,12,15,18,21,24,27,30,33,36-undecaoxo-1,2-dithia-5,8,11,14,17,20,23,26,29,32,35-undecazacyclooctatriacontane-4-carboxylic acidIC502.6 [1]
(4R,7S,10R,13S,16R,19S,22R,25S,28R,31S,34R,37S)-37-[[2-[[(2S)-2-[[(2S)-6-Amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-4-amino-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]propanoyl]amino]-4-oxobutanoyl]amino]-3-hydroxypropanoyl]amino]-4-oxobutanoyl]pyrrolidine-2-carbonyl]amino]propanoyl]amino]-4-methylsulfanylbutanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-4-carboxybutanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]hexanoyl]amino]propanoyl]amino]acetyl]amino]-19,34-bis(4-aminobutyl)-31-(2-amino-2-oxoethyl)-13,25,28-tribenzyl-10,16-bis[(1R)-1-hydroxyethyl]-7-(hydroxymethyl)-22-(1H-indol-3-ylmethyl)-6,9,12,15,18,21,24,27,30,33,36-undecaoxo-1,2-dithia-5,8,11,14,17,20,23,26,29,32,35-undecazacyclooctatriacontane-4-carboxylic acidKi5.4 [1]
(4R,7S,10S,13S,16R,19S,22S,25R)-25-Amino-13-(4-aminobutyl)-7,19,22-tribenzyl-10-[(1R)-1-hydroxyethyl]-16-(1H-indol-3-ylmethyl)-6,9,12,15,18,21,24-heptaoxo-1,2-dithia-5,8,11,14,17,20,23-heptazacyclohexacosane-4-carboxylic acidIC501.8 [1]

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References
This online resource may be cited as follows
MLA
"Quest Database™ Somatostatin receptor 4 Inhibitors (IC50, Ki)." AAT Bioquest, Inc., 8 Jan. 2026, https://www.aatbio.com/data-sets/somatostatin-receptor-4-inhibitors-ic50-ki.
APA
AAT Bioquest, Inc. (2026, January 8). Quest Database™ Somatostatin receptor 4 Inhibitors (IC50, Ki). AAT Bioquest. https://www.aatbio.com/data-sets/somatostatin-receptor-4-inhibitors-ic50-ki.
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