1. Peptides

Peptides are a group of biologically active substances that are involved in various cellular functions of organisms. Peptides are often used in functional analysis, antibody research, vaccine research and especially in the field of drug research and development. Peptides have a variety of biological functions, such as, anti-thrombosis, anti-hypertension, antibacteria, antivirus, anticancer and antioxidation, immunoregulation, and cholesterol-lowering effects.

MedChemExpress (MCE) offers a comprehensive collection of tag peptides, amino acid derivatives, blocking peptides, and bioactive peptides to clients in pharmaceutical and academic institutions all over the world. The bioactivity and safety of most bioactive peptides are confirmed by preclinical research and clinical trials. The peptides target on caspase, ACE, serine protease, integrins, JNK, and so on. And some peptides are the linkers for antibody-drug-conjugation. Tag peptides include common tags such as HA, FLAG, and c-Myc peptide.

Product quality is the key to our success and we take pride in offering only the highest-grade products. Product identity, quality, purity and activity are assured by our robust quality control and assurance polices, programs and procedures. We perform thorough analytical tests (HPLC and LC-MS), stability tests and activity assays on our peptides and the test results are available to clients. Comprehensive information such as purity, length, modification, sequence and recommended solvent will be provided.

Peptides (1849):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-13948
    Angiotensin II human 4474-91-3 99.96%
    Angiotensin II (Angiotensin II) is a vasoconstrictor and a major bioactive peptide of the renin/angiotensin system. Angiotensin II human plays a central role in regulating human blood pressure, which is mainly mediated by interactions between Angiotensin II and the G-protein-coupled receptors (GPCRs) Angiotensin II type 1 receptor (AT1R) and Angiotensin II type 2 receptor (AT2R). Angiotensin II human stimulates sympathetic nervous stimulation, increases aldosterone biosynthesis and renal actions. Angiotensin II human induces growth of vascular smooth muscle cells, increases collagen type I and III synthesis in fibroblasts, leading to thickening of the vascular wall and myocardium, and fibrosis. Angiotensin II human also induces apoptosis. Angiotensin II induces capillary formation from endothelial cells via the LOX-1 dependent redox-sensitive pathway.
    Angiotensin II human
  • HY-P0035
    Insulin (human) 11061-68-0
    Insulin (human) is a polypeptide hormone that regulates the level of glucose.
    Insulin (human)
  • HY-A0190
    Ceruletide 17650-98-5 ≥98.0%
    Ceruletide is a decapeptide and a potent cholecystokinin receptor agonist. Ceruletide is a safe and effective cholecystokinetic agent with a direct spasmogenic effect on the gallbladder muscle and bile ducts.
    Ceruletide
  • HY-P1156
    Insulin(cattle) 11070-73-8 ≥98.0%
    Insulin cattle (Insulin from bovine pancreas) is a two-chain polypeptide hormone produced in vivo in the pancreatic β cells. Insulin cattle has often been used as growth supplement in culturing cells.
    Insulin(cattle)
  • HY-13443
    Exendin-4 141758-74-9 99.98%
    Exendin-4 (Exenatide), a 39 amino acid peptide, is a long-acting glucagon-like peptide-1 receptor agonist with an IC50 of 3.22 nM.
    Exendin-4
  • HY-P0319A
    3X FLAG peptide TFA 99.79%
    3X FLAG peptide TFA is a synthetic peptide with a 3-time repeated DYKXXD motif.
    3X FLAG peptide TFA
  • HY-P0223
    FLAG peptide 98849-88-8 99.23%
    FLAG peptide is an eight amino acids peptide (Asp-Tyr-Lys-Asp-Asp-Asp-Asp-Lys) with an enterokinase-cleavage site; designed for antibody-mediated identification and purification of recombinant proteins.
    FLAG peptide
  • HY-P1410A
    GsMTx4 TFA 98.29%
    GsMTx4 TFA is a spider venom peptide that selectively inhibits cation-permeable mechanosensitive channels (MSCs) belonging to the Piezo and TRP channel families. GsMTx4 TFA is an important pharmacological tool for identifying the role of these excitatory MSCs in normal physiology and pathology. GsMTx4 TFA significantly attenuates bladder hyperactivity.
    GsMTx4 TFA
  • HY-101297
    Z-IETD-FMK 210344-98-2 ≥98.0%
    Z-IETD-FMK (Z-IE(OMe)TD(OMe)-FMK) is a selective and cell permeable caspase-8 inhibitor. Z-IETD-FMK is also a granzyme B inhibitor.
    Z-IETD-FMK
  • HY-P0252
    α-MSH 581-05-5 98.02%
    α-MSH (α-Melanocyte-Stimulating Hormone), as an endogenous neuropeptide, is an endogenous melanocortin receptor 4 (MC4R) agonist with anti-inflammatory and antipyretic activities. α-MSH is a post-translational derivative of pro-opiomelanocortin (POMC).
    α-MSH
  • HY-17571A
    Oxytocin acetate 6233-83-6 ≥99.0%
    Oxytocin acetate is a pleiotropic, hypothalamic peptide known for facilitating parturition, lactation, and prosocial behaviors. Oxytocin acetate can function as a stress-coping molecule with anti-inflammatory, antioxidant, and protective effects especially in the face of adversity or trauma.
    Oxytocin acetate
  • HY-P1061A
    Colivelin TFA 99.22%
    Colivelin TFA is a brain penetrant neuroprotective peptide and a potent activator of STAT3, suppresses neuronal death by activating STAT3 in vitro. Colivelin TFA exhibits long-term beneficial effects against neurotoxicity, Aβ deposition, neuronal apoptosis, and synaptic plasticity deficits in neurodegenerative disease. Colivelin TFA has the potential for the treatment of alzheimer's disease and ischemic brain injury.
    Colivelin TFA
  • HY-12403
    Angiotensin (1-7) 51833-78-4 99.91%
    Angiotensin 1-7 (Ang-(1-7)) is an endogenous heptapeptide from the renin-angiotensin system (RAS) with a cardioprotective role due to its anti-inflammatory and anti-fibrotic activities in cardiac cells. Angiotensin 1-7 inhibits purified canine ACE activity (IC50=0.65 μM). Angiotensin 1-7 acts as a local synergistic modulator of kinin-induced vasodilation by inhibiting ACE and releasing nitric oxide. Angiotensin 1-7 blocks Ang II-induced smooth muscle cell proliferation and hypertrophy and shows antiangiogenic and growth-inhibitory effects on the endothelium. Angiotensin 1-7 shows anti-inflammatory activity .
    Angiotensin (1-7)
  • HY-13259C
    (R)-MG-132 1211877-36-9 ≥98.0%
    (R)-MG-132 ((S,R,S)-(-)-MG-132) is the enantiomer of MG-132. (R)-MG-132 is a proteasome inhibitor with weaker cell cytotoxicity than MG-132. (R)-MG-132 stereoisomer is a more potent proteasome inhibitor than MG-132.
    (R)-MG-132
  • HY-P0239
    HA Peptide 92000-76-5 99.23%
    HA Peptide (HA tag) is a nine amino acids peptide derived from the human influenza hemagglutinin (HA). HA Peptide is extensively used to isolate, purify, detect, and track the protein of interest in cell biology and biochemistry.
    HA Peptide
  • HY-P0224
    N-Formyl-Met-Leu-Phe 59880-97-6 99.46%
    N-Formyl-Met-Leu-Phe (fMLP; N-Formyl-MLF) is a chemotactic peptide and a specific ligand of N-formyl peptide receptor (FPR). N-Formyl-Met-Leu-Ph is reported to inhibit TNF-alpha secretion.
    N-Formyl-Met-Leu-Phe
  • HY-17365
    Octreotide acetate 79517-01-4 99.83%
    Octreotide acetate, a long-acting synthetic analog of native somatostatin, inhibits growth hormone, glucagon, and insulin more potently.
    Octreotide acetate
  • HY-P1923
    L-Asparaginase 9015-68-3 ≥99.0%
    L-Asparaginase (L-​ASNase), a hydrolase that catalyzes the conversion of L-asparagine, used in acute lymphoblastic leukemia treatment. L-Asparaginase depletes L-asparagine from plasma resulting in inhibition of RNA and DNA synthesis with the subsequent blastic cell apoptosis.
    L-Asparaginase
  • HY-P1026
    NFAT Inhibitor 249537-73-3 98.89%
    NFAT Inhibitor (VIVIT peptide) is a cell-permeable peptide inhibitor of nuclear factor of activated Tcells (NFAT) that selectively inhibits calcineurin-mediated dephosphorylation of NFAT.
    NFAT Inhibitor
  • HY-P0049
    Argipressin 113-79-1 99.82%
    Argipressin (Arg8-vasopressin) binds to the V1, V2, V3-vascular arginine vasopressin receptor, with a Kd value of 1.31 nM in A7r5 rat aortic smooth muscle cells for V1.
    Argipressin