Rapamycin - NEW!

The product brochure for Rapamycin, or Sirolimus, a metabolite from the bacteria Streptomyces hygroscopicus

Research Exemption Peptides

These are FDA-regulated products. It is the responsibility of the customer to ensure that they are complying with Federal rules. Peptides International cannot be liable for infringement of rights made by the user.

Urotensin Peptides

Urotensin II (UII) is the most potent vasoconstrictor known to date.

Vasoactive Peptides

Many vasoactive peptides induce vasodilation by acting via specific G-protein coupled receptors (GPCR).

Enzyme Inhibitors

The product brochure list of the Enzyme Inhibitors and their characteristics

Enzyme Substrates

The product brochure list of the Enzyme Substrates and their characteristics

Calpain Inhibitors

Calpain, a calcium-activated cysteine protease present in most mammalian tissues, is a potential therapeutic target for neurodegeneration prevention.

Caspase Inhibitors and Substrates - NEWLY UPDATED!

Substrates & Inhibitors for Caspase Related Products

Carboxypeptidase A Substrate: Ac-Thia-Phe

Substrate to Detect Pancreatic Cancer

Fluorescence-Quenching Substrates

Fluorescence-quenched peptide substrates have been used to quantitate various enzyme activities.