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 (820):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-P0035
    Insulin(human) 11061-68-0
    Insulin(human) is a polypeptide hormone that regulates the level of glucose.
  • HY-P1156
    Insulin(cattle) 11070-73-8 98.60%
    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.
  • HY-P0319
    3X FLAG peptide
    3X FLAG Peptide is a synthetic peptide with a 3-time repeated DYKXXD motif.
    3X FLAG peptide
  • HY-P0223
    FLAG peptide 98849-88-8 98.37%
    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-P0201
    Substance P 33507-63-0 98.07%
    Substance P is a neuropeptide, acting as a neurotransmitter and as a neuromodulator in the CNS. The endogenous receptor for substance P is neurokinin 1 receptor (NK1-receptor, NK1R).
    Substance P
  • HY-P0299
    LSKL, Inhibitor of Thrombospondin TSP-1 283609-79-0 98.29%
    LSKL, Inhibitor of Thrombospondin (TSP-1) is a peptide derived from the latency-associated peptide, inhibits thrombospondin (TSP-1) activation of TGF-β and prevents the progression of hepatic damage and fibrosis.
    LSKL, Inhibitor of Thrombospondin TSP-1
  • HY-P0239
    HA Peptide 92000-76-5 99.40%
    HA Peptide (HA tag) is a nine amino acids peptide derived from the human influenza hemagglutinin (HA). It 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.
  • HY-P1363
    Amyloid β-Peptide (1-42) human 107761-42-2
    Amyloid β-Peptide (1-42) human is a 42-amino acid peptide which plays a key role in the pathogenesis of Alzheimer disease.
    Amyloid β-Peptide (1-42) human
  • HY-P0093
    Sincalide 25126-32-3
    Sincalide is a rapid-acting, synthetic analog of cholecystokinin for intravenous use in postevacuation cholecystography.
  • HY-P1026
    NFAT Inhibitor 249537-73-3 98.41%
    NFAT Inhibitor (VIVIT peptide; 11R-VIVIT) is a selective inhibitor of calcineurin-mediated dephosphorylation of nuclear factor of activated T cells (NFAT).
    NFAT Inhibitor
  • HY-P0049
    Argipressin 113-79-1 99.82%
    Argipressin 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 is a selective V2 agonist.
  • HY-P0252
    α-Melanocyte-Stimulating Hormone (MSH), amide 581-05-5 98.55%
    α-Melanocyte-Stimulating Hormone (MSH), amide stimulates melanocortin 1 receptor that results in the activation of adenylyl cyclase.
    α-Melanocyte-Stimulating Hormone (MSH), amide
  • HY-P0206
    Bradykinin 58-82-2 98.97%
    Bradykinin is an active peptide that is generated by the kallikrein-kinin system. It is a inflammatory mediator and also recognized as a neuromediator and regulator of several vascular and renal functions.
  • HY-P0319A
    3X FLAG peptide TFA
    3X FLAG peptide TFA is a synthetic peptide with a 3-time repeated DYKXXD motif.
    3X FLAG peptide TFA
  • HY-P1061A
    Colivelin TFA
    Colivelin (TFA) is a neuroprotective peptide and activator of STAT3.
    Colivelin TFA
  • HY-P0122
    iRGD peptide 1392278-76-0 98.62%
    iRGD peptide is a 9-amino acid cyclic peptide, triggers tissue penetration of drugs by first binding to av integrins, then proteolytically cleaved in the tumor to produce CRGDK/R to interact with neuropilin-1, and has tumor-targeting and tumor-penetrating properties.
    iRGD peptide
  • HY-P0210
    DAMGO 78123-71-4 98.10%
    DAMGO is a μ-opioid receptor (μ-OPR ) selective agonist with a Kd of 3.46 nM for native μ-OPR.
  • HY-P0233
    Melittin 20449-79-0
    Melittin is a PLA2 activator, stimulates the activity of the low molecular weight PLA2, while it does not the increase activity of the high molecular weight PLA2.
  • HY-P0125A
    Elamipretide TFA 1606994-55-1 99.81%
    Elamipretide TFA (MTP-131 TFA; RX-31 TFA; SS-31 TFA) is a cardiolipin peroxidase inhibitor and mitochondria-targeting peptide.
    Elamipretide TFA