S-40503

DB13938ExperimentalSmall molecule

S-40503 is an investigational selective androgen receptor modulator (SARM) developed for the treatment of osteoporosis by the Japanese company Kaken Pharmaceuticals.

Mechanism: Pharmacologically active on Androgen receptor
Curator reviewed
Formula / weight: C₁₅H₂₃N₃O₃ · 293.367 g/mol (avg)
Code names: S-40503

Resolves to

Compound

UNIITBF49WHM83CAS404920-28-1ChEMBLCHEMBL1910411

Structure

InChIKeyYNYAUBNZRZVNLX-KBPBESRZSA-NSMILES[H][C@]1(C[C@]([H])(N(C)C)C2=C(N1)C=CC(=C2)N(=O)=O)C(C)(C)CO

Targets

P10275AR

What you can answer from here — as of July 07, 2026

1Protein targetEach mapped to UniProt, with action and pharmacological action

Listed above

1+ReferenceStructured and connected to the statements they support

Which drugs share a target with S-40503, and which of those have an active Phase 3 trial?

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