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 (280):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-16658
    Z-VAD-FMK 187389-52-2 >98.0%
    Z-VAD-FMK is a cell-permeable, pan-caspase inhibitor.
    Z-VAD-FMK
  • HY-13948
    Angiotensin II human 4474-91-3 99.34%
    Angiotensin II human is converted by Angiotensin I through removal of two C-terminal residues by the enzyme angiotensin-converting enzyme (ACE). Angiotensin II is mediated by AT1 and AT2 receptors, which are seven transmembrane glycoproteins with 30% sequence similarity.
    Angiotensin II human
  • HY-13443
    Exendin-4 141758-74-9 98.96%
    Exendin-4, 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-A0190
    Ceruletide 17650-98-5 99.59%
    Ceruletide (Caerulein) is a biologically active decapeptide isolated from the skin of the Australian frog Hyla caerulea. It is a potent cholecystokinetic agent with a direct spasmogenic effect on the gallbladder muscle and bile ducts in humans and
    Ceruletide
  • HY-17365
    Octreotide acetate 79517-01-4 99.78%
    Octreotide (acetate) is a long-acting octapeptide and somatostatin analog with pharmacologic actions mimicking those of the natural hormone somatostatin.
    Octreotide acetate
  • HY-P0018
    Pepstatin 26305-03-3 98.45%
    Pepstatin is a potent inhibitor of aspartyl proteases, and inhibits the aspartic proteases cathepsin D, pepsin, and renin.
    Pepstatin
  • HY-P0017
    Aprotinin 9087-70-1 99.56%
    Aprotinin is a serine protease inhibitor isolated from bovine lung which inhibits trypsin and chymotrypsin with Ki values of 0.06 pM and 9 nM, respectively.
    Aprotinin
  • HY-12403
    Angiotensin 1-7 51833-78-4 98.62%
    Angiotensin (1-7) inhibits purified canine angiotensin converting enzyme (ACE) activity with an IC50 of 0.65 μM.
    Angiotensin 1-7
  • HY-18234A
    Leupeptin hemisulfate 103476-89-7 >98.0%
    Leupeptin hemisulfate is a reversible, competitive serine/cysteine protease inhibitor, which has been shown to inhibit cathepsins B, H, L, and S, calpain, and trypsin.
    Leupeptin hemisulfate
  • HY-12290
    Arg-Gly-Asp-Ser 91037-65-9 >98.0%
    Arg-Gly-Asp-Ser is an integrin binding sequence that inhibits integrin receptor function, decreases systemic inflammation via inhibition of collagen-triggered activation of leukocytes and attenuates expression of inflammatory cytokines, iNOS and MMP-9.
    Arg-Gly-Asp-Ser
  • HY-P0014
    Liraglutide 204656-20-2 99.96%
    Liraglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist used clinically to treat type 2 diabetes mellitus.
    Liraglutide
  • HY-P0023
    Cyclo(-RGDfK) 161552-03-0 >98.0%
    Cyclo(-RGDfK) is a potent and selective inhibitor of the αvβ3 integrin.
    Cyclo(-RGDfK)
  • HY-P0082
    Glucagon 16941-32-5
    Glucagon is a peptide hormone, exhibits therapeutic potential for metabolic disease.
    Glucagon
  • HY-P0069
    D-JNKI-1
    D-JNKI-1 is a specific inhibitor of JNK, and strongly interferes with JNK activation.
    D-JNKI-1
  • HY-P0081
    Bax inhibitor peptide V5 579492-81-2 99.79%
    Bax inhibitor peptide V5 is a Bax-mediated apoptosis inhibitor, used for cancer treatment.
    Bax inhibitor peptide V5
  • HY-P0117
    Tat-NR2B9c 500992-11-0 98.22%
    Tat-NR2B9c is a PSD95 inhibitor with EC50 of 7 nM, also inhibit p38. Tat-NR2B9c blocks NMDA-induced superoxide formation by prevents phosphorylation of the NOX2 p47phoxsubunit.
    Tat-NR2B9c
  • HY-P0072
    Microcystin-LR 101043-37-2
    Microcystin-LR inhibits protein phosphatase type 1 and type 2A (PP1 and PP2A) activities in the cytoplasm of liver cells.
    Microcystin-LR
  • HY-101297
    Z-IETD-FMK 210344-98-2 >98.0%
    Z-IETD-FMK is a selective and cell permeable caspase 8 inhibitor.
    Z-IETD-FMK
  • HY-41189
    Fmoc-Val-Cit-PAB-PNP 863971-53-3
    Fmoc-Val-Cit-PAB-PNP is a peptide prodrug linker, is a linker for antibody-drug-conjugation (ADC).
    Fmoc-Val-Cit-PAB-PNP
  • HY-13665
    Leuprolide Acetate 74381-53-6 99.88%
    Leuprolide acetate (Leuprorelin) is a GnRH analog; leuprolide acetate acts as an agonist at pituitary GnRH receptors.
    Leuprolide Acetate