1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Neurokinin Receptor
  4. NK1 Isoform
  5. NK1 Antagonist

NK1 Antagonist

NK1 Antagonists (24):

Cat. No. Product Name Effect Purity
  • HY-14751
    Antagonist 98.65%
    Rolapitant (SCH619734) is a potent, selective, long-acting and orally active neurokinin 1 (NK1) receptor antagonist with a Ki of 0.66 nM. Rolapitant does not interact with CYP3A4. Rolapitant shows potent anti-emetic activity in a ferret emesis model.
  • HY-10053
    Antagonist 99.52%
    Maropitant is a selective and orally active neurokinin (NK1) receptor antagonist. Maropitant acts by blocking the binding of substance P within the emetic center and the chemoreceptor trigger zone (CRTZ). Maropitant is highly effective in preventing vomiting.
  • HY-14405A
    Casopitant mesylate
    Antagonist 99.84%
    Casopitant mesylate (GW679769B) is a potent, selective, brain permeable and orally active neurokinin 1 (NK1) receptor antagonist. Casopitant mesylate is a second in the class of antiemetics that acts to antagonise the emetogenic effect of substance P. Casopitant mesylate is also a substrate and a weak-to-moderate inhibitor of CYP3A4. Casopitant mesylate can be used for chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea and vomiting (PONV).
  • HY-101249
    Antagonist 99.75%
    L-732138 is a selective, potent and competitive neurokinin-1 (NK-1) receptor antagonist with an IC50 of 2.3 nM. L-732138 has 200-fold more potent in cloned human NK-1 receptors than cloned rat NK-1 receptors, and has > 1000-fold more potent than human NK-2 and NK-3 receptors. L-732138 can reduce hyperalgesia and has antitumor action.
  • HY-10049A
    CP 122721 hydrochloride
    CP 122721 hydrochloride is a potent, non-peptide and selective nonpeptide neurokinin NK1 antagonist, with a pIC50 of 9.8 for human NK1 receptor expressed in IM-9 cells. CP 122721 hydrochloride exhibits anxiolytic and antidepressant-like effects.
  • HY-12143
    Vofopitant dihydrochloride
    Antagonist 99.11%
    Vofopitant dihydrochloride (GR 205171A) is a potent, selective and orally available tachykinin neurokinin 1(NK1) receptor antagonist, inhibits [3H]SP binding to the NK1 receptor with pKi values of 9.5 and 10.6 in rat and human membranes respectively, acts as a potential broad-spectrum anti-emetic agent.
  • HY-122347A
    Orvepitant maleate
    Antagonist 99.99%
    Orvepitant maleate (GW823296 maleate) is potent, selective, orally active and well-tolerated neurokinin-1 receptor (NK-1) antagonist with a pKi of 10.2 for human neurokinin-1 receptor. Orvepitant maleate can across the blood-brain barrier. Orvepitant maleate has the potential for depressive disorder and chronic refractory cough (CRC) treatment.
  • HY-P0061
    Antagonist 98.06%
    Vapreotide is a neurokinin-1 (NK1) receptor antagonist, with an IC50 of 330 nM.
  • HY-P1194
    Spantide I
    Antagonist 99.85%
    Spantide I, a substance P analog, is a selective NK1 receptor antagonist, with Ki values of 230 nM and 8150 nM for NK1 and NK2 receptor, respectively. Spantide I provides an approach to reduce type 1 and enhance the type 2 cytokine IL-10 in the infected cornea, leading to a significant reduction in corneal perforation.
  • HY-151413
    MEN 10207
    Antagonist 99.69%
    MEN 10207 is a selective NK-2 tachykinin receptor (Neurokinin Receptor) antagonist. MEN 10207 has pA2 values of 5.2, 7.9 and 4.9 in three monoreceptor in vitro assays for NK-1, NK-2 and NK-3 tachykinin receptors, respectively.
  • HY-P0061A
    Vapreotide acetate
    Antagonist 99.67%
    Vapreotide acetate (RC-160 acetate; BMY-41606 acetate) is a neurokinin-1 (NK1) receptor antagonist, with an IC50 of 330 nM.
  • HY-P1722
    Spantide II
    Antagonist 98.01%
    Spantide II, an undecapeptide substance P (SP) analog, is a potent neurokinin-1 receptor (NK-1R) antagonist. Spantide II binds with NK-1R and blocks proinflammatory activities associated with SP. Spantide II can be used in the research of inflammatory skin disorders, such as psoriasis and contact dermatitis.
  • HY-108479
    Nolpitantium (SR140333) is a potent, selective, competitive, non-peptide tachykinin NK1 receptor antagonist. Nolpitantium blocks the activation of rat thalamic neurons after nociceptive stimulation.
  • HY-14406A
    L-733060 hydrochloride
    Antagonist ≥99.0%
    L-733060 hydrochloride is a potent tachykinin NK1 receptor antagonist. L-733060 hydrochloride inhibits neurogenic plasma extravasation at doses that do not cause adverse cardiovascular effects in rodents and also acts as an antitumoral agent.
  • HY-16436
    Rolapitant hydrochloride hydrate
    Antagonist 98.25%
    Rolapitant hydrochloride hydrate (SCH619734 hydrochloride hydrate) is a potent, selective, long-acting and orally active neurokinin 1 (NK1) receptor antagonist with a Ki of 0.66 nM. Rolapitant hydrochloride hydrate does not interact with CYP3A4. Rolapitant hydrochloride hydrate shows potent anti-emetic activity in a ferret emesis model.
  • HY-133206A
    Fosnetupitant chloride monohydrochloride
    Antagonist 99.70%
    Fosnetupitant chloride monohydrochloride (Pronetupitant chloride monohydrochloride) is an NK1 antagonist with pKi values of 9.5, 6.1 for human NK1 and NK3 receptor, respectively. Fosnetupitant chloride monohydrochloride is a methylene phosphate prodrug of Netupitant.
  • HY-108480
    SDZ NKT 343
    SDZ NKT 343 is a selective, orally active NK1 receptor antagonist with an IC50 of 0.62 nM against human NK1 receptor. SDZ NKT 343 has good analgesic activity.
  • HY-19633
    CS-003 Free base
    CS-003 Free base (CS-003), a triple tachykinin receptor antagonist, shows high affinities for human (Neurokinin) NK1, NK2 and NK3 receptors with Ki values of 2.3 nM, 0.54 nM and 0.74 nM, respectively. CS-003 Free base (CS-003) has therapeutic efficacy on respiratory diseases associated with neurokinins.
  • HY-P3802
    [D-Trp2,7,9] Substance P
    [D-Trp2,7,9] Substance P is a tachykinin (Neurokinin Receptor) antagonist with Ki values of 1 μM, 1.3 μM, and ~9 μM for NK-1, NK-2,and NK-3 receptor, respectively.
  • HY-109147
    Imnopitant is a NK1 receptor antagonist (WO2020132716, compound 1) .