VIP
Vasoactive intestinal peptide. 28aa neuropeptide.
Also known as: VIP · Vasoactive intestinal peptide · VIP28
CAS 40077-57-8 · C147H237N43O43S
Lead time
Ships in 3–5 days
Purity
99.3%
CAS Number
40077-57-8
Molecular Weight
3326.8
Formula
C147H237N43O43S
Form
Lyophilized powder
Packaging
5mg vial · 10 vials/box
Storage
-20°C, lyophilized
Solubility
Water
Chemical structure
2D structure · Source: PubChem (NIH)
Research applications
VIP (vasoactive intestinal peptide) is a 28-amino-acid neuropeptide of the secretin/glucagon family. It is studied in neuroimmunomodulation, vasodilation and smooth-muscle research, VIP-receptor (VPAC1/VPAC2) pharmacology, and anti-inflammatory peptide signaling.
Referenced literature
- [1]Said S.I., Mutt V. "Polypeptide with broad biological activity: isolation from small intestine." Science, 1970.
Selected peer-reviewed literature for research context — not medical advice.
Quality Documentation
How we verifyRaw material screening
Off-spec lots never enter synthesis
In-process monitoring
Intermediates characterized at checkpoints
HPLC-MS verification
Identity, purity & quantitation per batch
A batch-specific COA ships with every order — see the format before you buy.
Request sample COAFrequently asked questions
What is VIP?
VIP (vasoactive intestinal peptide) is a 28-amino-acid neuropeptide of the secretin/glucagon family. It is studied in neuroimmunomodulation, vasodilation and smooth-muscle research, VIP-receptor (VPAC1/VPAC2) pharmacology, and anti-inflammatory peptide signaling.
What purity is VIP?
99.3% purity, HPLC-MS verified per batch.
What is the CAS number of VIP?
CAS 40077-57-8 · Molecular formula C147H237N43O43S · Molecular weight 3326.8.
How long does VIP take to ship?
Ships in 3–5 days after order confirmation.
How should VIP be stored?
-20°C, lyophilized. Solubility: Water.
Is VIP for human use?
No. VIP is a research compound for laboratory research use only — not for human or veterinary use.
For pricing and availability of VIP, contact our research team.
For laboratory research use only.
Related compounds
HGH 191aa
Recombinant human growth hormone. Full 191aa sequence.
CAS 12629-01-5
10IU vial · In stock
NAD+
Nicotinamide adenine dinucleotide. Cellular metabolism studies.
CAS 53-84-9
500mg vial · In stock
GHK-Cu
Copper tripeptide-1. Tissue regeneration studies.
CAS 49557-75-7
50mg vial · In stock
TB-500
Thymosin β4 fragment. Actin-binding domain active.
CAS 885340-08-9
5mg vial · In stock
Related journal
AOD-9604: The hGH Fragment 177-191 Lipolytic Peptide
AOD-9604, the synthetic analog of hGH fragment 177-191, and its research in lipolysis, fat metabolism and growth-hormone fragment pharmacology.
BPC-157 and the 503A Bulks List: What the July 2026 FDA Recommendation Changes
BPC-157 was recommended for the FDA 503A Bulks List in July 2026 — what the vote means, what it doesn't change, and the research status of the pentadecapeptide.
BPC-157 Dosage and Reconstitution Math: 5 mg Vial in the Lab
BPC-157 vial math — reconstituting a 5 mg lyophilized vial, mg to mL and U-100 unit conversions, and common research dose ranges.