1. Natural Products
  2. Antibiotics
  3. Macrolide Antibiotics

Macrolide Antibiotics

Macrolides contain a characteristic macrolactone ring which can range in size from 12 to 16 atoms and forms the core of these ribosome-targeting antibiotics. Most of the clinically relevant macrolides contain a 14 atoms core (e.g., Erythromycin and Clarithromycin). The side chains appended to the macrolactone define many important biological and clinical properties of macrolides. Specific sugar residues are usually linked at the C3 and C5 positions of the ring. Macrolide antibiotics play an antibacterial role by targeting the bacterial ribosome and inhibiting protein synthesis.

Macrolide Antibiotics (58):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-10219
    Rapamycin 53123-88-9 99.94%
    Rapamycin (Sirolimus; AY 22989) is a potent and specific mTOR inhibitor with an IC50 of 0.1 nM in HEK293 cells. Rapamycin binds to FKBP12 and specifically acts as an allosteric inhibitor of mTORC1. Rapamycin is an autophagy activator, an immunosuppressant.
  • HY-100558
    Bafilomycin A1 88899-55-2 99.43%
    Bafilomycin A1 (BafA1) is a specific and reversible inhibitor of vacuolar H+-ATPase (V-ATPase) with IC50 values of 4-400 nmol/mg. Bafilomycin A1, a macrolide antibiotic, is also used as an autophagy inhibitor at the late stage. Bafilomycin A1 blocks autophagosome-lysosome fusion and inhibits acidification and protein degradation in lysosomes of cultured cells. Bafilomycin A1 induces apoptosis.
    Bafilomycin A1
  • HY-13756
    Tacrolimus 104987-11-3 99.93%
    Tacrolimus (FK506), a macrocyclic lactone, binds to FK506 binding protein (FKBP) to form a complex. Tacrolimus inhibits calcineurin phosphatase, which inhibits T-lymphocyte signal transduction and IL-2 transcription. Immunosuppressive properties.
  • HY-16592
    Brefeldin A 20350-15-6 99.87%
    Brefeldin A (BFA) is a lactone antibiotic and a specific inhibitor of protein trafficking. Brefeldin A blocks the transport of secreted and membrane proteins from endoplasmic reticulum to Golgi apparatus. Brefeldin A is also an autophagy and mitophagy inhibitor. Brefeldin A is a CRISPR/Cas9 activator. Brefeldin A inhibits HSV-1 and has anti-cancer activity.
    Brefeldin A
  • HY-16589
    Oligomycin A 579-13-5 99.94%
    Oligomycin A (MCH 32), created by Streptomyces, acts as a mitochondrial F0F1-ATPase inhibitor, with a Ki of 1 μM; Oligomycin A shows anti-fungal activity.
    Oligomycin A
  • HY-15310
    Ivermectin 70288-86-7 98.01%
    Ivermectin (MK-933) is a broad-spectrum anti-parasite agent. Ivermectin (MK-933) is a specific inhibitor of Impα/β1-mediated nuclear import and has potent antiviral activity towards both HIV-1 and dengue virus. It is a positive allosteric effector of P2X4 and the α7 neuronal nicotinic acetylcholine receptor (nAChRs). Ivermectin also inhibits bovine herpesvirus1 (BoHV-1) replication and inhibits BoHV-1 DNA polymerase nuclear import. Ivermectin is a candidate therapeutic against SARS-CoV-2/COVID-19.
  • HY-B0108
    Daptomycin 103060-53-3 99.90%
    Daptomycin is a lipopeptide antibiotic with rapid in vitro bactericidal activity against gram-positive organisms.
  • HY-N6782
    Oligomycin 1404-19-9 ≥99.0%
    Oligomycin, an antifungal antibiotic, is an inhibitor of H+-ATP-synthase. Oligomycin blocks oxidative phosphorylation and the electron transport chain. Oligomycin inhibits HIF-1alpha expression in hypoxic tumor cells.
  • HY-17580
    Fidaxomicin 873857-62-6 99.85%
    Fidaxomicin (OPT-80), a macrocyclic antibiotic, is an orally active and potent RNA polymerase inhibitor. Fidaxomicin has a narrow spectrum of antibacterial activity and a good anti-Clostridium difficile activity (MIC90=0.12 μg/mL). Fidaxomicin can be used for Clostridium difficile infection (CDI) research.
  • HY-B0220
    Erythromycin 114-07-8 99.86%
    Erythromycin is a macrolide antibiotic produced by actinomycete Streptomyces erythreus with a broad spectrum of antimicrobial activity. Erythromycin binds to bacterial 50S ribosomal subunits and inhibits RNA-dependent protein synthesis by blockage of transpeptidation and/or translocation reactions, without affecting synthesis of nucleic acid[1][2]. Erythromycin also exhibits antitumor and neuroprotective effect in different fields of research[3][4].
  • HY-17409
    Nystatin 1400-61-9 98.29%
    Nystatin is an orally active polyene antifungal antibiotic effective against yeast and mycoplasma. Nystatin increases the permeability of plasma membranes to small monovalent ions, including chloridion. Nystatin is a cholesterol-sequestering agent, partially prevents Oxaliplatin-induced lipid raft aggregation, DR4 and DR5 clustering, and thereby reduces apoptosis.
  • HY-13557
    Ascomycin 104987-12-4 ≥98.0%
    Ascomycin (Immunomycin; FR-900520; FK520) is an ethyl analog of Tacrolimus (FK506) with strong immunosuppressant properties. Ascomycin is also a macrocyclic polyketide antibiotic with multiple biological activities such as anti-malarial, anti-fungal and anti-spasmodic. Ascomycin prevents graft rejection and has potential for varying skin ailments research.
  • HY-13756A
    Tacrolimus monohydrate 109581-93-3 99.67%
    Tacrolimus monohydrate (FK506 monohydrate), a macrocyclic lactone, binds to FK506 binding protein (FKBP) to form a complex and inhibits calcineurin phosphatase, which inhibits T-lymphocyte signal transduction and IL-2 transcription. Immunosuppressive properties.
    Tacrolimus monohydrate
  • HY-B0133
    Natamycin 7681-93-8 99.30%
    Natamycin (Pimaricin) is a macrolide antibiotic agent produced by several Streptomyces strains. Natamycin inhibits the growth of fungi via inhibition of amino acid and glucose transport across the plasma membrane. Natamycin is a food preservative, an antifungal agent in agriculture, and is widely used for fungal keratitis research.
  • HY-B1908
    Midecamycin 35457-80-8 ≥98.0%
    Midecamycin, an acetoxy-substituted macrolide antibiotic, is tested against gram-positive and gram-negative bacteria.
  • HY-100593
    Spiramycin 8025-81-8 99.19%
    Spiramycin (Rovamycin) is a macrolide antibiotic produced by Streptomyces ambofaciens with against bacteria and Toxoplasma gondii activities, and also has antiparasitic effect. Spiramycin is composed of a 16-member lactone ring, on which three sugars (mycaminose, forosamine, and mycarose) are attached.
  • HY-N6769
    Radicicol 12772-57-5 99.38%
    Radicicol is an inhibitor of Hsp90 with an IC50 value < 1 μM, and leads to proteasomal degradation. Radicicol exhibits inhibition on PDK with IC50s of 230 μM (PDK1) and 400 μM (PDK3). Radicicol is an antifungal and antimalarial antibiotic, impairs mitochondrial replication by targeting P. falciparum topoisomerase VIB. Radicicol is also an inhibitor of fat mass and obesity-associated protein (FTO), with an IC50 value of 16.04 μM.
  • HY-15311
    Avermectin B1 71751-41-2
    Avermectin B1 (Abamectin) is a mixture of two similar segments of avermectin. Avermectin B1 is an orally anti-infection agent, which can be used in the research of parasitic worms, insect pests, agriculture and animal husbandry. Avermectin B1 can also induce the production of ROS and induces cytotoxicity, apoptosis and autophagy.
    Avermectin B1
  • HY-A0279A
    Pristinamycin IA 3131-03-1 98.91%
    Pristinamycin IA (Mikamycin B) is a cycle-peptidic macrolactone antibiotic. Pristinamycin IA is a substrate of P-glycoprotein and inhibits its function. Pristinamycin IA is active against StaphyloEoccus and Srreptococcus.
    Pristinamycin IA
  • HY-B1920
    Josamycin 16846-24-5 ≥98.0%
    Josamycin (EN-141) is a macrolide antibiotic exhibiting antimicrobial activity against a wide spectrum of pathogens, such as bacteria. The dissociation constant Kd from ribosome for Josamycin is 5.5 nM.