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Sigma Receptor

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Sigma Receptor Products

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Catalog No. Product Name Information Product Use Citations Product Validations
S0106 BD-1047 dihydrobromide BD-1047 dihydrobromide (HBr) is a selective functional antagonist of sigma-1 (σ1) receptor, shows antipsychotic activity in animal models predictive of efficacy in schizophrenia.
Brain Res, 2024, 1838:149011
Authorea Preprints, 2023,
Neuropharmacology, 2021, 196:108360
S6981 Glycerol phenylbutyrate Glycerol phenylbutyrate (GT4P, HPN-100M, Ravicti) is a nitrogen-binding agent and acts as a sigma-2 (σ2) receptor ligand with a pKi of 8.02. Glycerol phenylbutyrate is a prodrug in which phenylbutyrate (PBA) is released from the glycerol backbone by lipases in the gastrointestinal tract.
E7418New Noscapine Noscapine ((S,R)-Noscapine) is an alkaloid derived from the opium poppy (Papaver somniferum) and is a centrally acting antitussive opiate derivative. It is a non-competitive antagonist of the bradykinin B2 receptor. It also exhibits neuroprotection by activating sigma-1 opioid receptors, which help suppress intracellular NO levels and calcium, thereby providing protection against ischemic injury.
S0295 Anavex 2-73 HCl Anavex 2-73 (Blarcamesine, AVex-73, AE-37), an aminotetrahydrofuran derivative, is a mixed muscarinic and sigma-1/σ1 Receptor agonist with IC50 of 0.86 μM.
S0869 Carbetapentane Carbetapentane (Pentoxyverine, CB) is an antitussive anticonvulsant nonselective sigma-1 (σ1) agonist.
S6561 4-IBP 4-IBP is a selective σ1 receptor agonist with a high level of affinity for the σ1 receptor (Ki = 1.7 nM) and a moderate affinity for the σ2 receptor (Ki = 25.2 nM).
E0388 WQ 1 WQ 1 is a high affinity and selective σ1 receptor antagonist with pKi values of 10.85, 6.53 and 5.80 at σ1, σ2 receptors and dopamine transporter (DAT), displaying σ1/σ2 selectivity ratio of 20893.
E7744New Siramesine Siramesine (Lu 28-179) is a potent agonist of sigma-2 receptor(σ1R) with an IC50 of 0.12 nM, exhibiting 140-fold selectivity over sigma-1 receptors. It shows strong anxiolytic effects and induces cancer cell death, highlighting its potential anticancer activity.
S2917 Cutamesine Dihydrochloride Cutamesine dihydrochloride (SA4503 dihydrochloride,AGY94806 dihydrochloride) is a potent Sigma-1 receptor agonist with an IC50 of 17.4 nM in guinea pig brain membranes.
S0191 BD1063 2HCL BD1063 2HCL (BD1063 dihydrochloride) is a potent and selective sigma-1 receptor (σ1R) antagonist with Ki of 4.43 nM.
S6950 PRE-084 hydrochloride PRE-084 hydrochloride (HCl) is a potent, selective sigma-1 receptor (σ1, S1R) agonist with IC50 of 44 nM in the sigma receptor assay.
Free Radic Biol Med, 2025, 226:96-108
E7191New Ditolylguanidine Ditolylguanidine (1,3-di-o-tolylguanidine) is a non-selective agonist of sigma receptor (σ receptor) with high affinity Ki values of 69 nM and 21 nM for σ1 and σ2 receptors, respectively. It effectively inhibits the growth of small cell lung cancer cells and can be used for the research of lung cancer.
HIV Med, 2025, 26(2):285-294
S6754 S1RA S1RA (E-52862) is a selective sigma-1 receptor (σ1R) antagonist with a reported binding affinity of Ki = 17.0 ± 7.0 nM for human σ1 receptor , selective over the sigma-2 receptor and against a panel of other 170 receptors, enzymes, transporters and ion channels.
Int Immunopharmacol, 2024, 128:111524
S6756 Siramesine HCl Siramesine (Lu 28-179) is a sigma receptor agonist, selective for the σ2 subtype with IC50 values of 0.12 nM and 17 nM for σ2 and σ1 receptors respectively.
E7418New Noscapine Noscapine ((S,R)-Noscapine) is an alkaloid derived from the opium poppy (Papaver somniferum) and is a centrally acting antitussive opiate derivative. It is a non-competitive antagonist of the bradykinin B2 receptor. It also exhibits neuroprotection by activating sigma-1 opioid receptors, which help suppress intracellular NO levels and calcium, thereby providing protection against ischemic injury.
S0106 BD-1047 dihydrobromide BD-1047 dihydrobromide (HBr) is a selective functional antagonist of sigma-1 (σ1) receptor, shows antipsychotic activity in animal models predictive of efficacy in schizophrenia.
Brain Res, 2024, 1838:149011
Authorea Preprints, 2023,
Neuropharmacology, 2021, 196:108360
E0388 WQ 1 WQ 1 is a high affinity and selective σ1 receptor antagonist with pKi values of 10.85, 6.53 and 5.80 at σ1, σ2 receptors and dopamine transporter (DAT), displaying σ1/σ2 selectivity ratio of 20893.
S0191 BD1063 2HCL BD1063 2HCL (BD1063 dihydrochloride) is a potent and selective sigma-1 receptor (σ1R) antagonist with Ki of 4.43 nM.
S6754 S1RA S1RA (E-52862) is a selective sigma-1 receptor (σ1R) antagonist with a reported binding affinity of Ki = 17.0 ± 7.0 nM for human σ1 receptor , selective over the sigma-2 receptor and against a panel of other 170 receptors, enzymes, transporters and ion channels.
Int Immunopharmacol, 2024, 128:111524
S0295 Anavex 2-73 HCl Anavex 2-73 (Blarcamesine, AVex-73, AE-37), an aminotetrahydrofuran derivative, is a mixed muscarinic and sigma-1/σ1 Receptor agonist with IC50 of 0.86 μM.
S0869 Carbetapentane Carbetapentane (Pentoxyverine, CB) is an antitussive anticonvulsant nonselective sigma-1 (σ1) agonist.
S6561 4-IBP 4-IBP is a selective σ1 receptor agonist with a high level of affinity for the σ1 receptor (Ki = 1.7 nM) and a moderate affinity for the σ2 receptor (Ki = 25.2 nM).
E7744New Siramesine Siramesine (Lu 28-179) is a potent agonist of sigma-2 receptor(σ1R) with an IC50 of 0.12 nM, exhibiting 140-fold selectivity over sigma-1 receptors. It shows strong anxiolytic effects and induces cancer cell death, highlighting its potential anticancer activity.
S2917 Cutamesine Dihydrochloride Cutamesine dihydrochloride (SA4503 dihydrochloride,AGY94806 dihydrochloride) is a potent Sigma-1 receptor agonist with an IC50 of 17.4 nM in guinea pig brain membranes.
S6950 PRE-084 hydrochloride PRE-084 hydrochloride (HCl) is a potent, selective sigma-1 receptor (σ1, S1R) agonist with IC50 of 44 nM in the sigma receptor assay.
Free Radic Biol Med, 2025, 226:96-108
E7191New Ditolylguanidine Ditolylguanidine (1,3-di-o-tolylguanidine) is a non-selective agonist of sigma receptor (σ receptor) with high affinity Ki values of 69 nM and 21 nM for σ1 and σ2 receptors, respectively. It effectively inhibits the growth of small cell lung cancer cells and can be used for the research of lung cancer.
HIV Med, 2025, 26(2):285-294
S6756 Siramesine HCl Siramesine (Lu 28-179) is a sigma receptor agonist, selective for the σ2 subtype with IC50 values of 0.12 nM and 17 nM for σ2 and σ1 receptors respectively.
E7418New Noscapine Noscapine ((S,R)-Noscapine) is an alkaloid derived from the opium poppy (Papaver somniferum) and is a centrally acting antitussive opiate derivative. It is a non-competitive antagonist of the bradykinin B2 receptor. It also exhibits neuroprotection by activating sigma-1 opioid receptors, which help suppress intracellular NO levels and calcium, thereby providing protection against ischemic injury.
E7744New Siramesine Siramesine (Lu 28-179) is a potent agonist of sigma-2 receptor(σ1R) with an IC50 of 0.12 nM, exhibiting 140-fold selectivity over sigma-1 receptors. It shows strong anxiolytic effects and induces cancer cell death, highlighting its potential anticancer activity.
E7191New Ditolylguanidine Ditolylguanidine (1,3-di-o-tolylguanidine) is a non-selective agonist of sigma receptor (σ receptor) with high affinity Ki values of 69 nM and 21 nM for σ1 and σ2 receptors, respectively. It effectively inhibits the growth of small cell lung cancer cells and can be used for the research of lung cancer.
HIV Med, 2025, 26(2):285-294

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