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 (919):

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.
    Insulin(human)
  • 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.
    Insulin(cattle)
  • 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-P0319A
    3X FLAG peptide TFA 98.93%
    3X FLAG peptide TFA is a synthetic peptide with a 3-time repeated DYKXXD motif.
    3X FLAG peptide TFA
  • 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-P0319
    3X FLAG peptide
    3X FLAG Peptide is a synthetic peptide with a 3-time repeated DYKXXD motif.
    3X FLAG peptide
  • HY-P0201
    Substance P 33507-63-0 98.07%
    Substance P (Neurokinin 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 98.46%
    LSKL, Inhibitor of Thrombospondin (TSP-1) is a latency-associated protein (LAP)-TGFβ derived tetrapeptide and a competitive TGF-β1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-β1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) can readily crosse the blood-brain barrier.
    LSKL, Inhibitor of Thrombospondin (TSP-1)
  • 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-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-P0206
    Bradykinin 58-82-2 99.86%
    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.
    Bradykinin
  • HY-P1026
    NFAT Inhibitor 249537-73-3 98.41%
    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 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.
    Argipressin
  • 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-P0093
    Sincalide 25126-32-3 99.34%
    Sincalide (Cholecystokinin octapeptide) is a rapid-acting amino acid polypeptide hormone analogue of cholecystokinin (CCK) for intravenous use in postevacuation cholecystography. Sincalide ammonium is an agent that promotes gallbladder contraction by injection and helps diagnose gallbladder and pancreas disorders. The hepatobiliary physiologic effect of Sincalide ammonium is to increase bile secretion, cause the gallbladder to contract and relax the sphincter of Oddi, resulting in bile drainage into the duodenum.
    Sincalide
  • HY-P1061A
    Colivelin TFA
    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-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-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
  • 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.
    DAMGO
  • HY-P0019A
    Z-Gly-Gly-Arg-AMC acetate 2070009-61-7 99.84%
    Z-Gly-Gly-Arg-AMC acetate is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP).
    Z-Gly-Gly-Arg-AMC acetate