VIP (Vasoactive Intestinal Peptide)

28-amino acid neuropeptide for VPAC receptor and immunomodulatory research. ≥98% purity, COA. RUO only.

By HALO Editorial · Reviewed June 26, 2026 · Editorial standards

Short answer

VIP (Vasoactive Intestinal Peptide) is supplied by HALO as a research-use-only lyophilized compound for qualified laboratory research. 28-amino acid neuropeptide for VPAC receptor and immunomodulatory research. ≥98% purity, COA. RUO only.

Molecular weight: 3326.0 g/mol
CAS: 37221-79-7
Documentation: 98%+ HPLC purity, independent COA, lot-indexed records
Use limitation: Research use only; not for human or veterinary use

Diagrams

Research pathway context (schematic)

Identity card

COA verification flow

Lyophilized handling workflow

Mechanism of action in research models

VIP (Vasoactive Intestinal Peptide) is supplied as a characterised research-use-only reference compound for qualified laboratory investigation. Experimental endpoints depend on the compound class and should be defined in the institutional protocol.

Research background

HALO provides independent COA documentation, HPLC purity verification, and lot traceability for procurement and methods-section citation.

Documentation and COA standards

Each HALO lot of VIP (Vasoactive Intestinal Peptide) ships with an independent certificate of analysis documenting:

HPLC purity — reverse-phase chromatography with ≥98% main peak by area integration
Identity confirmation — LC-MS, ESI-MS, or MALDI-TOF as applicable to molecular weight
Lot / batch number — must match the vial label for procurement audit trails
Test date and method — third-party laboratory, not supplier self-reporting

Read: What is a peptide COA? · Batch-specific verification · Lab results index

Storage and handling

Store lyophilized VIP (Vasoactive Intestinal Peptide) sealed, cold (−20 °C), dry, and protected from light until reconstitution. After reconstitution with an appropriate research diluent, follow institutional stability protocols; minimise freeze-thaw cycles and document open-vial dates in the lab log.

Tools: Peptide calculator · Lyophilized peptide guide · Stability guide

Frequently asked research questions

What is VIP (Vasoactive Intestinal Peptide) used for in research?

VIP (Vasoactive Intestinal Peptide) is a research-use-only reference material studied in qualified laboratory models related to Research compound — see identity table. HALO supplies it with batch COA documentation for procurement and methods citation. Not for human or veterinary use.

What documentation ships with VIP (Vasoactive Intestinal Peptide)?

Each order includes a lot-specific certificate of analysis with HPLC purity, identity confirmation where applicable, batch number, and test date. Digital verification is available via the product page and /lab-results/.

How is purity verified for VIP (Vasoactive Intestinal Peptide)?

Independent third-party HPLC confirms ≥98% main peak purity. Identity is confirmed by mass spectrometry when molecular weight permits. Results are lot-specific — not generic catalogue COAs.

What does RUO mean for this listing?

Research Use Only: VIP (Vasoactive Intestinal Peptide) is sold for qualified in-vitro and laboratory research. It is not for human or veterinary use, diagnosis, treatment, or clinical administration.

How should lyophilized VIP (Vasoactive Intestinal Peptide) be stored?

Keep sealed at −20 °C, desiccated, protected from light. After reconstitution, follow your institutional SOP; typical short-term storage is 2–8 °C with limited hold time depending on diluent and compound stability.

Where can the COA be verified?

Match the lot number on your vial to the COA included with your shipment. For a digital copy or institutional packet, email [email protected] with your order number and lot ID.

Selected references

See PubMed for peer-reviewed literature on VIP (Vasoactive Intestinal Peptide) in preclinical research models.

Research use only. Materials are sold strictly for in vitro and qualified laboratory research. Not for human or veterinary use, diagnosis, or treatment. Full text: Research Use Statement.