VIP (Vasoactive Intestinal Peptide) 5 mg
Vasoactive intestinal peptide, 5 mg lyophilized 28-residue reference standard at 98.7% HPLC purity.
- Purity (HPLC)
- 98.7%
- Fill weight
- 5 mg / vial
- CAS number
- 37221-79-7
- Form
- Lyophilized powder
- Assay
- RP-HPLC + mass spectrometry
- Storage
- −20 °C, protected from light
About VIP as a reference compound
VIP is a 28-amino-acid neuropeptide supplied as a characterised reference sequence for receptor and immunoassay work. Every PureLabs lot of VIP is produced under GMP-aligned synthesis controls, assayed by an independent partner laboratory using reverse-phase HPLC with mass-spectrometric confirmation, and released only above the stated purity threshold of 98.7%. The certificate of analysis is lot-specific, carries the chromatogram and MS trace for the exact vial you receive, and stays archived under reference SEQ-1144 for as long as the batch exists.
Handling and storage
- Store sealed VIP vials at −20 °C, protected from light.
- Reconstitute with bacteriostatic or sterile water added slowly down the vial wall; swirl, never shake.
- Hold reconstituted solution at 2–8 °C and use within roughly 21 days.
- Aliquot before freezing to avoid repeated freeze–thaw cycles.
VIP — frequently asked questions
Common laboratory questions about sourcing, purity, storage and shipping of VIP.
What purity is PureLabs VIP?
Current stock assays at 98.7% by reverse-phase HPLC, confirmed by mass spectrometry at an independent laboratory. Any lot testing below the threshold is rejected rather than sold.
Does VIP ship with a certificate of analysis?
Yes. A lot-specific certificate of analysis including the HPLC chromatogram and MS trace accompanies every VIP order and remains retrievable under batch reference SEQ-1144.
How should VIP be stored?
Sealed lyophilized VIP is stable at −20 °C for at least 24 months; once reconstituted, hold at 2–8 °C and use within about three weeks.
How fast does VIP ship?
Orders confirmed before 15:00 UTC dispatch the same working day in insulated, tracked cold-chain packaging, subject to the import rules of the destination country.
Is VIP sold for human use?
No. PureLabs supplies this compound strictly as reference material for in-vitro and laboratory research. It is not a medicine and is not for human or veterinary consumption.