STEP 1
Sterile Lyophilization
Compounds are produced under documented quality procedures, then freeze-dried and nitrogen-sealed in sterile vials.
Research use only
Peptide Portal supplies research peptides exclusively to qualified researchers and laboratories for in vitro and laboratory use. Please confirm before continuing.
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CAS #: 37221-79-7
Peptide Portal supplies research peptides exclusively to qualified researchers and laboratories for in vitro and laboratory use. Products are not for human or veterinary use, not for use in diagnostic procedures, and have not been evaluated by the U.S. Food and Drug Administration.
Vasoactive Intestinal Peptide is a neuropeptide composed of 28 amino acids. It was originally isolated from intestinal tissue and belongs to the glucagon/secretin superfamily of signaling peptides. Since its discovery in 1970, VIP has been studied extensively in controlled experimental settings for its potential influence on smooth muscle relaxation, receptor signaling, and immune regulation.
Said S.I., Mutt V. (1970).
The peptide was first isolated by Sami Said and Viktor Mutt from porcine small intestine, initially characterized by its vasodilatory activity. Early experiments focused on its structural relationship to secretin and glucagon and on its broad range of physiological actions. Over time, studies broadened into neural, respiratory, endocrine, and immune systems, where VIP consistently demonstrated properties of interest in the context of molecular signaling and biological regulation.
Said S.I., Mutt V. (1972).

STEP 1
Compounds are produced under documented quality procedures, then freeze-dried and nitrogen-sealed in sterile vials.
STEP 2
ISO 17025 accredited third-party labs verify every lot — purity by HPLC, identity by mass spectrometry.
STEP 3
Orders leave our U.S. fulfillment center the same day, with tracking and discreet packaging on every order.
Our team works around the clock, 24/7.
Each vial contains the labelled quantity of lyophilized peptide. The stated milligram figure refers to the peptide content, not the total mass of the lyophilized cake.
Reconstitution requires bacteriostatic water and appropriate laboratory equipment, which are not included.
Products ship as research materials without directions for use. Handling should follow your own laboratory protocols.
Store lyophilized material at 2-8°C and away from light. Once reconstituted, follow your laboratory's stability guidance.
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