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guinea pig trachea

" in MedChemExpress (MCE) Product Catalog:

By Targets:	5-HT Receptor (1) Adenosine Receptor (1) Adrenergic Receptor (5) Calcium Channel (1) Drug Derivative (1) Drug Isomer (3) Leukotriene Receptor (5) mAChR (1) Neurokinin Receptor (1) Potassium Channel (2) Prostaglandin Receptor (1) Sodium Channel (1) Thrombin (1)
By Research Areas:	Cardiovascular Disease (9) Endocrinology (1) Inflammation/Immunology (8) Metabolic Disease (4) Neurological Disease (3)

Inhibitors & Agonists

Peptides

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-101325

(S,S)-BRL-37344 sodium	Drug Isomer Adrenergic Receptor	Cardiovascular Disease Metabolic Disease
(S,S)-BRL-37344 sodium is an isomer of BRL-37344 (HY-101325B). BRL-37344 is a β-adrenoceptor agonist with EC₅₀ values of 5.3, 18 and 570 nM for β3, β2 and β1. BRL-37344 induces concentration-dependent increases in atria1 rate, relaxation of guinea pig trachea and lipolysis of brown adipocytes .

HY-135108

QWF Peptide	Neurokinin Receptor	Neurological Disease
QWF Peptide (Compound 4a) is a substance P antagonist with an IC₅₀ of 0.09 μM. QWF Peptide antagonizes the SP-induced contraction of isolated guinea pig trachea strips with an IC₅₀ of 4.7 μM .

HY-101325A

(S,S)-BRL-37344	Drug Isomer Adrenergic Receptor	Cardiovascular Disease Metabolic Disease
(S,S)-BRL-37344 is an isomer of BRL-37344 (HY-101325B). BRL-37344 is a β-adrenoceptor agonist with EC₅₀ values of 5.3, 18 and 570 nM for β3, β2 and β1. BRL-37344 induces concentration-dependent increases in atria1 rate, relaxation of guinea pig trachea and lipolysis of brown adipocytes .

HY-136831

SR2640 QMPB	Leukotriene Receptor	Inflammation/Immunology
SR2640 is a highly efficient and selective LTD4/LTE4 antagonist that can specifically inhibit the smooth muscle contractions induced by LTD4 in the guinea pig ileum and trachea in a concentration-dependent manner, without affecting the contractions caused by histamine. SR2640 can concentration-dependently prevent the binding of 0.4 nM [3H] LTD4 to membrane receptors in guinea pig lung tissue, with an IC₅₀ of 23 nM. SR2640 can shift the dose-response curve for bronchoconstriction induced by intravenous LTD4 in guinea pigs to the right, and the extent of this shift is positively correlated with the dose of SR2640 administered. SR2640 can be used in asthma research .

HY-105138

(6R)-Naxifylline (6R)-BG9719; (6R)-CVT-124	Adenosine Receptor	Cardiovascular Disease
(6R)-Naxifylline ((6R)-BG9719) (ENX R-enantiomer) is the R-enantiomer of Naxifylline (HY-19240). (6R)-Naxifylline is a A₁-adenosine antagonist with saluretic activity. (6R)-Naxifylline induces relaxation of spontaneous tone in guinea pig trachea .

HY-123206

R-96544 free base	5-HT Receptor	Inflammation/Immunology
R-96544 (free base) is a potent, selective and competitive 5-HT2 receptor antagonist. R-96544 (free base) inhibits platelet aggregation induced by serotonin, and inhibits 5-HT2A receptor-mediated contraction of guinea pig trachea .

HY-W747563

11-trans Leukotriene D4 11-trans LTD4	Drug Isomer	Others
11-trans Leukotriene D4 (11-trans LTD4) is a C-11 double bond isomer of LTD4. LTD4 undergoes slow temperature-dependent isomerization to 11-trans LTD4 during storage. 11-trans LTD4 retains about 10-25 % of the potency for contraction of guinea pig ileum, trachea and parenchyma compared to LTD4. It exhibits an ED50 ranging between 12-60 nM for contraction of guinea pig trachea.

HY-101236

ICI 192605	Prostaglandin Receptor	Endocrinology
ICI 192605 is a potent TXA2R (thromboxane A2 receptor) antagonist as cell signaling prostaglandin. ICI 192605 blocks contraction of isolated guinea pig trachea induced by U-46619 .

HY-113727

SC-39070	Leukotriene Receptor	Inflammation/Immunology
SC-39070 is a LTD4 receptor antagonist. SC-39070 blocks the contractile effect of LTD4 on guinea pig trachea .

HY-118220

EP 171	Thrombin	Cardiovascular Disease
EP 171 is a TP receptor agonist and human platelet activator. EP 171 can induce constriction of guinea pig trachea, and the constriction can be inhibited by the TP receptor antagonist EP 092. EP 171 binds to TP receptors on intact human platelets with an IC₅₀ of 2.9 nM .

HY-113758

LY 163443	Leukotriene Receptor	Inflammation/Immunology
LY 163443 is a selective antagonist of leukotrienes D4 (LTD4) and E4 (LTE4). LY 163443 can antagonize LTD4-induced contractions of guinea pig ileum, trachea, and lung parenchyma. LY 163443 also inhibits tracheal contractions to LTE4 .

HY-100724

YM-17690	Leukotriene Receptor	Inflammation/Immunology
YM-17690 is a LTD₄ and LTE₄ agonist, with a pK_i value of 9.28 for [3H]LTD₄. It induces dose-dependent contractions in guinea pig ileum, lung parenchyma, and trachea, with EC₅₀ values of 16, 3.9, and 22 nM, respectively. YM-17690 can be used in research related to asthma and inflammation .

HY-120915

L 689660 maleate	mAChR	Neurological Disease
L 689660 maleate, a cholinomimetic agent, is a selective M1 and M3 muscarinic receptors agonist. L 689660 maleate is a potent M1 muscarinic receptor full agonist in the rat superior cervical ganglion (pEC₅₀ of 7.3). L 689660 maleate is a potent M3 receptors agonist in the guinea-pig ileum myenteric plexus-longitudinal muscle or in trachea (pEC₅₀ of 7.5 and 7.7, respectively) .

HY-19042

YM-16638 YM 638	Leukotriene Receptor	Inflammation/Immunology
YM-16638 is an orally active leukotriene (LT) antagonist. YM-16638 can inhibit the production of LTC₄, LTD₄, and LTE₄ in guinea pig trachea, with IC₅₀ values of 0.05 μM, 0.16 μM, and 0.096 μM, respectively. YM-16638 has a dose-dependent inhibitory effect on antigen-induced early and late respiratory responses in allergic sheep .

HY-114660

9,11-Methane-epoxy prostaglandin F1α 9,11-Epoxymethano PGH1; 9,11-methane-epoxy PGF1α	Drug Derivative	Cardiovascular Disease
9,11-methane-epoxy Prostaglandin F1α (9,11-Epoxymethano PGH1; 9,11-methane-epoxy PGF1α) is a derivative of prostaglandin H1. 9,11-methane-epoxy Prostaglandin F1α induces aggregation of isolated rabbit platelets (EC₅₀=0.88 µM) and contraction of rabbit aortic strips (EC₅₀=0.11 µM). 9,11-methane-epoxy Prostaglandin F1α induces contraction of isolated guinea pig tracheas (EC₅₀ = 3.4 µM) .

HY-182635

ICI 147798	Adrenergic Receptor Sodium Channel Potassium Channel	Cardiovascular Disease Neurological Disease
ICI 147798 is an orally effective β-adrenoceptor antagonist with a pK_B of 9.1 (in guinea pig right atrium) and 8.8 (in guinea pig trachea). ICI 147798 acts as a diuretic and intraocular pressure-lowering agent. ICI 147798 blocks β-adrenoceptors, inhibits isoproterenol-induced tachycardia and vasodepressor responses, exhibits slowly dissociating, insurmountable antagonism against β₁-adrenoceptors, and shows surmountable competitive antagonism against β₂-adrenoceptors. ICI 147798 induces natriuresis and kaliuresis, inhibits sodium transport, and reduces intraocular pressure .

HY-101325B

BRL-37344	Adrenergic Receptor	Cardiovascular Disease Metabolic Disease
BRL-37344 is a β-adrenoceptor agonist with EC₅₀ values of 5.3, 18 and 570 nM for β3, β2 and β1. BRL-37344 induces concentration-dependent increases in atria1 rate, relaxation of guinea pig trachea and lipolysis of brown adipocytes .

HY-182640

SM-11044	Adrenergic Receptor	Cardiovascular Disease Metabolic Disease Inflammation/Immunology
SM-11044 is a β-adrenoceptor agonist with K_i values of 18.1 μM (β₁), 4.1 μM (β₂) and 1.3 μM (β₃), showing higher binding selectivity for the β₃-adrenoceptor. SM-11044 stimulates cAMP accumulation in cells expressing this receptor. SM-11044 mediates ileal relaxation, tracheal relaxation, pulmonary parenchymal relaxation, increased right atrial heart rate and adipocyte lipolysis .

HY-183206

UR 8225	Potassium Channel Calcium Channel	Cardiovascular Disease Inflammation/Immunology
UR 8225 is an orally active ATP-sensitive K ⁺ channel activator with vasodilator, smooth muscle relaxant, antihypertensive, and bronchodilator activities. UR 8225 induces membrane hyperpolarization by increasing outward K ⁺ conductance and reduces Ca ²⁺ influx through voltage-gated L-type Ca ²⁺ channels. UR 8225 reduces total peripheral vascular resistance, shortens cardiac action potential duration, inhibits agonist-induced Ca ²⁺ influx, and stimulates renin release. UR 8225 induces reflex tachycardia but lacks β-adrenergic receptor blocking activity. UR 8225 is widely applicable to research in fields related to hypertension, myocardial ischemia, ventricular fibrillation, and other conditions .

Cat. No.	Product Name	Target	Research Area

HY-135108

QWF Peptide	Neurokinin Receptor	Neurological Disease
QWF Peptide (Compound 4a) is a substance P antagonist with an IC₅₀ of 0.09 μM. QWF Peptide antagonizes the SP-induced contraction of isolated guinea pig trachea strips with an IC₅₀ of 4.7 μM .

HY-P3562

PL-3994	Peptides	Others
PL-3994 is a natriuretic peptide receptor-A (NPR-A) agonist that is resistant to neutral endopeptidase and acts as a bronchodilator. PL-3994 produces concentration-dependent relaxation of pre-contracted guinea-pig trachea with an IC₅₀ value of 42.7 nM .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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