Important dilution note: Cloudiness after dilution is most commonly associated with non-pharmaceutical-grade dilution solution. Cloudy product concerns are not eligible for refund unless Pfizer pharmaceutical-grade dilution solution was used.

Vial Size: 3ml

Form: White Lyophilized Powder

CAS Number: 40077-57-4

Chemical Name: Vasoactive Intestinal Peptide

Synonyms: VIP; Vasoactive Intestinal Polypeptide

Molecular Formula: C₁₄₇H₂₃₇N₄₃O₄₃S

Molecular Weight: 3,326.8 g/mol

Sequence: 28-amino acid neuropeptide of the secretin/glucagon superfamily (His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH₂); amidated C-terminus

Purity: ≥98% (HPLC) — see batch COA

Form: Lyophilized white to off-white powder

Storage Conditions: Store at −20°C, desiccated, protected from light. Stable 24 months lyophilized.

Solubility: Soluble in sterile water or 0.1% acetic acid at ≥1 mg/mL

Receptor Activity: Agonist at VPAC1 (VIPR1) and VPAC2 (VIPR2) receptors; studied for neuroprotection, immunomodulation, and smooth muscle relaxation

Certificate of Analysis: Available for all batches.

For research and laboratory use only. Not for human or animal consumption. This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease or condition. For use by qualified research professionals only.