LDN-193189 HCl (LDN193189 Hydrochloride) is a selective BMP type I receptor kinases inhibitor.

LDN193189 (LDN-193189) (DM 3189) is a selective BMP signaling inhibitor, inhibiting the transcriptional activity of ALK2 and ALK3 (IC50s: 0.8/0.8/5.3/16.7 nM for ALK1/2/3/6).

LDN-193189 2HCl (DM-3189 2HCl) is a selective BMP signaling inhibitor that inhibits ALK1,ALK2,ALK3 and ALK6, showing IC50s of 0.8 nM, 0.8 nM, 5.3 nM, and 16.7 nM, respectively, in kinase assays.LDN-193189 2HCl inhibited the transcriptional activity of BMP type I receptors in C2C12 cells, with IC50s of 5 nM and 30 nM, respectively. LDN-193189 2HCl inhibited the transcriptional activity of BMP type I receptors ALK2 and ALK3 in C2C12 cells, with IC50s of 5 nM and 30 nM, respectively, and was 200-fold more selective for BMP than for TGF-β.

LDN193189 Tetrahydrochloride is a selective inhibitor of BMPI-type receptors and inhibits ALK2 (IC50: 5 nM) and ALK3 (IC50: 30 nM), with weak effects on ALK4, ALK5 and ALK7 (IC50 ≥ 500 nM).