COA Certified · Every Batch TestedSame-Day Shipping on Orders by 2PM ESTUSA Sourced · USA ShippedFree Shipping on Orders Over $300≥99% Purity — HPLC + Mass SpecEndotoxin Tested · Sterility VerifiedCOA Certified · Every Batch TestedSame-Day Shipping on Orders by 2PM ESTUSA Sourced · USA ShippedFree Shipping on Orders Over $300≥99% Purity — HPLC + Mass SpecEndotoxin Tested · Sterility Verified
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P-21

Third-Party Tested · COA Available
P-21: ciliary neurotrophic factor-derived peptide for laboratory research. Third-party tested, 99%+ purity, COA available. Sizes: 5 mg.
$120.00 / 5 mg · USD
Volume pricingApplied automatically at checkout
QuantityPer unitYou save
3–4 units$111.607%
5–9 units$106.8011%
10+ units$100.8016%
Add 2 more to save 7% on every unit.
1
SKU P-21-5MG
The Purity GuaranteeVerified ≥99% by HPLC & mass spectrometry, third-party tested, with a lot-matched Certificate of Analysis on every vial.
  • Certificate of Analysis available for every lot
  • ≥99% purity, HPLC & mass-spec verified
  • Ships from a U.S. facility — same-day before 2PM EST
  • Secure checkout · Free shipping on orders $300+

Complete your setup

Lyophilized peptides need bacteriostatic water and a syringe to reconstitute. Add the essentials in one click.

P-21P-21In your order
Total for 3 items$158.00

P-21 is a small peptide developed from a region of ciliary neurotrophic factor. It is studied for neurogenesis and synaptic-plasticity signaling in preclinical models.

Common research applications include:

  • Neurogenesis research
  • Synaptic plasticity models
  • Neurotrophic signaling studies

Specifications

  • Class: Ciliary neurotrophic factor-derived peptide
  • Form: lyophilized powder in a sealed glass vial
  • Available sizes: 5 mg
  • Purity: verified at 99% or higher by HPLC, identity confirmed by mass spectrometry
  • Testing: every lot is third-party tested, with a lot-matched Certificate of Analysis available on request
  • Manufactured in the USA
  • Storage: keep sealed, cool, dry and away from light; refrigerate after reconstitution

For laboratory research use only. This product is not for human or veterinary use, is not a drug, food or cosmetic, and is not intended to diagnose, treat, cure or prevent any disease.

Purity≥99% by HPLC · COA available
Amino Acid Count6
SequenceAc-Asp-Gly-Gly-Leu-Ala-Gly-NH2 (CNTF-derived hexapeptide)
SynonymsP021; neurogenic peptidomimetic
Physical FormLyophilized powder
SolubilitySoluble in bacteriostatic water; consult the product COA for specific solvent recommendations.
StorageStore lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; refrigerate reconstituted solution at 2-8°C.
Answers

Frequently Asked Questions

Is P-21 third-party tested?

Yes. Every lot is independently third-party tested for identity and purity — ≥99% by HPLC and mass spectrometry — with a lot-matched Certificate of Analysis available on request for every lot.

Can I see the Certificate of Analysis before buying?

Yes. Ask us for the lot-matched COA before you order and we will send it, documenting identity, purity, and full analytical results.

What does 'Research Use Only' mean?

This product is supplied strictly for laboratory and research use only (RUO). It is not a drug, food, supplement, or cosmetic, is not approved by the FDA, and is not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.

How is it shipped and stored?

Orders placed before 2PM EST typically ship the same business day from our U.S. facility with tracking. Store the lyophilized material at −20°C, protected from light and moisture.

Research Library

Learn more about P-21

P-21 — molecular profile & reference →Reconstitution calculator
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