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Results for "

QS

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Antibiotic (3) Bacterial (21) Drug Metabolite (1) Endogenous Metabolite (1) FAP (1) Fungal (2) HIV Integrase (1) Parasite (3) Reactive Oxygen Species (1)
By Research Areas:	Cancer (4) Infection (23) Inflammation/Immunology (1) Metabolic Disease (1)

Inhibitors & Agonists

Peptides

Natural
Products

Isotope-Labeled Compounds

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-101092

QS-21 Stimulon
QS-21, an immunostimulatory saponin, could be used as a potent vaccine adjuvant. QS-21 stimulates Th2 humoral and Th1 cell-mediated immune responses through action on antigen presenting cells (APCs) and T cells. QS-21 can activate the NLRP3 inflammasome with subsequent release of caspase-1 dependent cytokines, IL-1β and IL-18 .

HY-12762

QS11 1 Publications Verification	Others	Cancer
QS11 is an inhibitor of ARFGAP1 (ADP-ribosylation factor GTPase-activating protein 1), with an EC₅₀ of 1.5 µM. QS11 modulates Wnt/β-catenin signaling through an effect on protein trafficking. QS11 inhibits migration of ARFGAP overexpressing breast cancer cells .

HY-124796

Qstatin	Bacterial	Infection
QStatin is a potent and selective inhibitor of SmcR (V. harveyi LuxR homologue) with an EC₅₀ of 208.9 nM, binding tightly to SmcR and changes the flexibility of the protein, thereby altering its transcription regulatory activity. QStatin shows pan-QS (Vibrio quorum sensing) inhibitor activity in diverse Vibrio species and attenuates their virulence in an aquatic host. QStatin may be a sustainable antivibriosis agent useful in aquacultures .

HY-133683

N-(3-Oxotetradecanoyl)-DL-homoserine lactone 3-Oxo-C14-AHL	Others	Metabolic Disease
N-(3-Oxotetradecanoyl)-DL-homoserine lactone, a member of N-Acyl homoserine lactone (AHL) from gram-negative bacteria, is a quorum sensing (QS) signaling molecule .

HY-130317

trans-11-Methyl-2-dodecenic acid trans-δ2-11-Methyl-dodecenoic acid	Fungal	Infection
trans-11-Methyl-2-dodecenic acid is a isomer of cis-11-Methyl-2-dodecenoic acid (HY-134215). cis-11-Methyl-2-dodecenoic acid is a quorum sensing (QS) signal that acts as a diffusion signaling factor (DSF) in extracellular microbial and fungal communication systems .

HY-P2454

CSP1	Bacterial	Infection
CSP1 is a potent and selective ComD1 receptor agonist, with an IC₅₀ of 10.3 nM. CSP1 is a major variants of competence-stimulating peptide (CSP), and it can regulate genetic transformation of S. pneumonia by modulating quorum sensing (QS). CSP1 can act as an antibacterial agent .

HY-131337

RhlR antagonist 1	Bacterial	Infection
RhlR antagonist 1 is a potent RhlR antagonist with an IC₅₀ of 26 μM. RhlR antagonist 1 displays selective RhlR antagonism over LasR and PqsR, strong inhibition of biofilm formation in static and dynamic settings, and reduces production of virulence factors such as rhamnolipid and pyocyanin in P. aeruginosa. RhlR antagonist 1 can be utilized for developing QS-modulating molecules in the control of P. aeruginosa infections . RhlR antagonist 1 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-149479

Quorum Sensing-IN-3

Bacterial Infection

QS-IN-1 (Compound 3a) is a quorum sensing inhibitor against pseudomonas aeruginosa. QS-IN-1 inhibits biofilm formation .

Quorum Sensing-IN-3	Bacterial	Infection
QS-IN-1 (Compound 3a) is a quorum sensing inhibitor against pseudomonas aeruginosa. QS-IN-1 inhibits biofilm formation .

HY-153552

NH2-UAMC1110	Others	Cancer
NH2-UAMC1110 is a UAMC1110 derivative that can be used in the synthesis of FAPI-QS. FAPI-QS is a chelating agent that can be used to manufacture high tumor selectivity and high dose radiotracers for the diagnosis and treatment of tumors .

HY-153552A

NH2-UAMC1110 TFA	FAP	Cancer
NH2-UAMC1110 TFA is a UAMC1110 derivative that can be used in the synthesis of FAPI-QS. UAMC1110 is a fibroblast activation protein (FAP) inhibitor. FAPI-QS is a chelating agent that can be used to synthesize high tumor selectivity and high dose radiotracers for the diagnosis and treatment of tumors .

HY-129405

N-(Ketocaproyl)-DL-homoserine lactone	Bacterial	Infection
N-(Ketocaproyl)-DL-homoserine lactone is a natural, very active ligand of LuxR. N-(Ketocaproyl)-DL-homoserine lactone is a quorum sensing (QS) autoinducer .

HY-161086

Antibiofilm agent-4

Bacterial Infection

Antibiofilm agent-4 (compound 4p) is a LasR inhibitor. Antibiofilm agent-4 shows the best antibiofilm and anti-QS properties .

Antibiofilm agent-4	Bacterial	Infection
Antibiofilm agent-4 (compound 4p) is a LasR inhibitor. Antibiofilm agent-4 shows the best antibiofilm and *anti-QS* properties .

HY-158124

LasR antagonist 1	Bacterial	Infection
LasR antagonist 1 (Compound 7) is an antagonist for LasR with an IC₅₀ of 0.4 μM, that modulates the quorum sensing (QS) in the opportunistic pathogen Pseudomonas aeruginosa .

HY-N4117

Hamamelitannin	Bacterial	Infection
Hamamelitannin, a polyphenol extracted from the bark of Hamamelis virginiana, is a quorum-sensing (QS) inhibitor. Hamamelitannin increases antibiotic susceptibility of staphylococcus aureus biofilms by affecting peptidoglycan biosynthesis and eDNA release .

HY-149762

IMBI	Bacterial	Infection
IMBI (compound 32) is an antibacterial agent that inhibits quorum sensing (QS) against drug-resistant pathogens. IMBI inhibits biofilm formation of Salmonella marcescens and restores or increases its susceptibility to antimicrobial drugs .

HY-111278

Pyocyanin 1 Publications Verification Pyocyanine; Sanazin; Sanasin	Reactive Oxygen Species Bacterial Drug Metabolite	Infection Inflammation/Immunology
Pyocyanin (Pyocyanine) is a toxic, quorum sensing (QS) controlled metabolite produced by Pseudomonas aeruginosa. Pyocyanin is a REDOX active compound that promotes the production of reactive oxygen species (ROS). Pyocyanin has antibacterial and anti-inflammatory activity .

HY-N7788

cis-2-Dodecenoic acid	Bacterial	Infection
cis-2-Dodecenoic acid, originally discovered in Burkholderia cenocepacia, can interfere with the bacterial quorum sensing system and inhibit bacterial biofilm formation and virulence factor production .

HY-118697

N-dodecanoyl-L-Homoserine lactone C12-HSL	Others	Infection
N-dodecanoyl-L-Homoserine lactone (C12-HSL) is a quorum sensing (QS) signaling molecule. N-dodecanoyl-L-Homoserine lactone (C12-HSL) aptamers blocks qurom sensing and inhibits biofilm formation in Pseudomonas aeruginosa .

HY-134215

cis-11-Methyl-2-dodecenoic acid	Bacterial Fungal	Infection
cis-11-Methyl-2-dodecenoic acid is a quorum sensing (QS) signal that acts as a diffusion signaling factor (DSF) in extracellular microbial and fungal communication systems. DSF is involved in the regulation of virulence and biofilm formation of a variety of bacterial pathogens .

HY-120504

N-Acetyltyramine	Bacterial	Infection Cancer
N-Acetyltyramine is a quorum-sensing inhibitor (QSI) compound produced by V. alginolyticus M3-10. N-Acetyltyramine is capable of inhibiting the QS of C. violaceum ATCC 12472. N-acetyltyramine reverses resistance in Doxorubicin-resistant leukemia P388 cells .

HY-N10192

Aculene D	Endogenous Metabolite Bacterial	Infection
Aculene D, a fungal metabolite, shows quorum sensing (QS) inhibitory activity against Chromobacterium violaceum CV026, and could significantly reduce violacein production in N-hexanoyl-l-homoserine lactone (C6-HSL) induced C. violaceum CV026 cultures at sub-inhibitory concentrations .

HY-W007390

Methyl 2-amino-5-bromobenzoate	Bacterial	Infection
Methyl 2-amino-5-bromobenzoate (compound 8/12) can be used for synthesis of 2-benzamidobenzoic acids, which are known FabH inhibitors. The derivates also inhibit PqsD, the pqs quorum sensing (QS) system of Pseudomonas aeruginosa, involving the production of a number of virulence factors and biofilm formation .

HY-146304

YXL-13	Bacterial	Infection
YXL-13 is a potent Pseudomonas aeruginosa (PAO1) inhibitor with an IC₅₀ value of 3.686 μM. YXL-13 can inhibit virulence factors and biofilm formation of PAO1. YXL-13 reduces the pathogenicity and agent resistance of PAO1 by inhibition of the quorum sensing (QS) system. YXL-13 can be used for researching anti-bacteria .

HY-124352

2-Nonyl-3-hydroxy-4-quinolone	Bacterial	Others
2-nonyl-3-hydroxy-4-Quinolone (C9-PQS) is a quinolone compound produced by P. aeruginosa and other related bacterias. 2-nonyl-3-hydroxy-4-Quinolone is a quorum sensing (QS) signal molecule that controls the expression of many virulence genes as a function of cell population density .

HY-B1118

Secnidazole RP-14539; PM-185184	Parasite Antibiotic Bacterial	Infection
Secnidazole (RP-14539) is an orally active azole antibiotic and a imidazole mitigator of Serratia marcescens virulence. Secnidazole, as an analog of acylhomoserine lactones, effectively inhibits QS resulting in the attenuation of Pseudomonas aeruginosa pathogenesis. Secnidazole has antimicrobial activity against many anaerobic Gram-negative and Gram-positive bacterial species in vitro. Secnidazole can be used for the research of various diseases, such as amoebiasis and giardiasis, and bacterial vaginitis .

HY-B1118A

Secnidazole hemihydrate RP-14539 hemihydrate; PM-185184 hemihydrate	Antibiotic Bacterial Parasite	Infection
Secnidazole (RP-14539) hemihydrate is an orally active azole antibiotic and a imidazole mitigator of Serratia marcescens virulence. Secnidazole hemihydrate, as an analog of acylhomoserine lactones, effectively inhibits QS resulting in the attenuation of Pseudomonas aeruginosa pathogenesis. Secnidazole hemihydrate has antimicrobial activity against many anaerobic Gram-negative and Gram-positive bacterial species in vitro. Secnidazole hemihydrate can be used for the research of various diseases, such as amoebiasis and giardiasis, and bacterial vaginitis .

HY-145462

N-cis-Octadec-9Z-enoyl-L-homoserine lactone	Bacterial	Infection
N-cis-octadec-9Z-enoyl-L-Homoserine lactone is a potent inhibitor of AhyI. AhyI (expressing acylhomoserine lactone) is responsible for the biosynthesis of autoinducer-1 (AI-1), commonly referred to as a quorum sensing (QS) signaling molecule, which plays an essential role in bacterial communication. N-cis-octadec-9Z-enoyl-L-Homoserine lactone is a competitive inhibitor of AI-1 biosynthesis .

HY-B1118S2

Secnidazole-d4 RP-14539-d₄; PM-185184-d₄	Bacterial Parasite Antibiotic	Infection
Secnidazole-d₄ is the deuterium labeled Secnidazole[1]. Secnidazole (RP-14539) is an orally active azole antibiotic and a imidazole mitigator of Serratia marcescens virulence. Secnidazole, as an analog of acylhomoserine lactones, effectively inhibits QS resulting in the attenuation of Pseudomonas aeruginosa pathogenesis. Secnidazole has antimicrobial activity against many anaerobic Gram-negative and Gram-positive bacterial species in vitro. Secnidazole can be used for the research of various diseases, such as amoebiasis and giardiasis, and bacterial vaginitis[1][2][3].

HY-N6711

Equisetin	HIV Integrase	Infection
Equisetin is an N-methylserine-derived acyl tetramic acid isolated from a terrestrial fungus Fusarium equiseti NRRL 5537 . Equisetin is a tetramate-containing natural product with antibiotic and cytotoxic activity . Equisetin inhibits the growth of Gram-positive bacteria and HIV-1 integrase activity but shows no activity against Gram-negative bacteria . Equisetin is a Quorum-sensing inhibitor (QSI) that attenuates QS-regulated virulence phenotypes in P. aeruginosa without affecting the growth of bacterias, serves as a leading compound for the treatment of P. aeruginosa infections .

CSP1	Bacterial	Infection
CSP1 is a potent and selective ComD1 receptor agonist, with an IC₅₀ of 10.3 nM. CSP1 is a major variants of competence-stimulating peptide (CSP), and it can regulate genetic transformation of S. pneumonia by modulating quorum sensing (QS). CSP1 can act as an antibacterial agent .

N-Octanoyl-DL-homoserine lactone	Peptides	Others
N-Octanoyl-DL-homoserine lactone is a member of N-acyl homoserine lactones (AHLs) family, also one of the signal molecule of quorum-sensing (QS) signals. N-Octanoyl-DL-homoserine lactone can regulate the production of siderophores and present positive correlation in Aeromonas sobria strain AS7. N-Octanoyl-DL-homoserine lactone can also regulate the secretion of proteases and stimulate the production of total volatile basic nitrogen (TVB-N) .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-133683

N-(3-Oxotetradecanoyl)-DL-homoserine lactone 3-Oxo-C14-AHL	Structural Classification Natural Products Microorganisms Classification of Application Fields Source classification Metabolic Disease Disease Research Fields	Others
N-(3-Oxotetradecanoyl)-DL-homoserine lactone, a member of N-Acyl homoserine lactone (AHL) from gram-negative bacteria, is a quorum sensing (QS) signaling molecule .

HY-111278

Pyocyanin 1 Publications Verification Pyocyanine; Sanazin; Sanasin	Microorganisms Source classification	Reactive Oxygen Species Bacterial Drug Metabolite
Pyocyanin (Pyocyanine) is a toxic, quorum sensing (QS) controlled metabolite produced by Pseudomonas aeruginosa. Pyocyanin is a REDOX active compound that promotes the production of reactive oxygen species (ROS). Pyocyanin has antibacterial and anti-inflammatory activity .

HY-N4117

Hamamelitannin	Infection Hamamelis mollis Oliver Classification of Application Fields Source classification Phenols Polyphenols Hamamelidaceae Plants Disease Research Fields	Bacterial
Hamamelitannin, a polyphenol extracted from the bark of Hamamelis virginiana, is a quorum-sensing (QS) inhibitor. Hamamelitannin increases antibiotic susceptibility of staphylococcus aureus biofilms by affecting peptidoglycan biosynthesis and eDNA release .

HY-N7788

cis-2-Dodecenoic acid	Structural Classification Animals Ketones, Aldehydes, Acids Source classification	Bacterial
cis-2-Dodecenoic acid, originally discovered in Burkholderia cenocepacia, can interfere with the bacterial quorum sensing system and inhibit bacterial biofilm formation and virulence factor production .

HY-N10192

Aculene D	Infection Microorganisms Classification of Application Fields Terpenoids Sesquiterpenes Source classification Disease Research Fields	Endogenous Metabolite Bacterial
Aculene D, a fungal metabolite, shows quorum sensing (QS) inhibitory activity against Chromobacterium violaceum CV026, and could significantly reduce violacein production in N-hexanoyl-l-homoserine lactone (C6-HSL) induced C. violaceum CV026 cultures at sub-inhibitory concentrations .

HY-N6711

Equisetin	Infection Structural Classification Microorganisms Classification of Application Fields Antibiotics Source classification Antibacterial Disease Research Disease Research Fields Other Antibiotics	HIV Integrase
Equisetin is an N-methylserine-derived acyl tetramic acid isolated from a terrestrial fungus Fusarium equiseti NRRL 5537 . Equisetin is a tetramate-containing natural product with antibiotic and cytotoxic activity . Equisetin inhibits the growth of Gram-positive bacteria and HIV-1 integrase activity but shows no activity against Gram-negative bacteria . Equisetin is a Quorum-sensing inhibitor (QSI) that attenuates QS-regulated virulence phenotypes in P. aeruginosa without affecting the growth of bacterias, serves as a leading compound for the treatment of P. aeruginosa infections .

Cat. No.	Product Name	Chemical Structure

HY-B1118S2

Secnidazole-d4
Secnidazole-d₄ is the deuterium labeled Secnidazole[1]. Secnidazole (RP-14539) is an orally active azole antibiotic and a imidazole mitigator of Serratia marcescens virulence. Secnidazole, as an analog of acylhomoserine lactones, effectively inhibits QS resulting in the attenuation of Pseudomonas aeruginosa pathogenesis. Secnidazole has antimicrobial activity against many anaerobic Gram-negative and Gram-positive bacterial species in vitro. Secnidazole can be used for the research of various diseases, such as amoebiasis and giardiasis, and bacterial vaginitis[1][2][3].

Secnidazole-d4

Secnidazole-d₄ is the deuterium labeled Secnidazole[1]. Secnidazole (RP-14539) is an orally active azole antibiotic and a imidazole mitigator of Serratia marcescens virulence. Secnidazole, as an analog of acylhomoserine lactones, effectively inhibits QS resulting in the attenuation of Pseudomonas aeruginosa pathogenesis. Secnidazole has antimicrobial activity against many anaerobic Gram-negative and Gram-positive bacterial species in vitro. Secnidazole can be used for the research of various diseases, such as amoebiasis and giardiasis, and bacterial vaginitis[1][2][3].

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QS

Inhibitors & Agonists

Peptides

NaturalProducts

Isotope-Labeled Compounds

Natural
Products