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 ship from the United States with tracking, in plain packaging with no identifying labels on the outside. Store the lyophilized material at −20°C, protected from light and moisture.

P-21 5 MG vial — United Peptides, Research Use Only

CatalogP-21

P-21

Name: P-21
Brand: United Peptides
SKU: P-21-5MG
Price: 120 USD
Availability: InStock

Research Peptide

P-21: ciliary neurotrophic factor-derived peptide for laboratory research. Third-party tested, 99%+ purity, COA available. Sizes: 5 mg.

$120.00

Per 5 mg · USD

Quantity

SKU P-21-5MG

Third-party tested, ≥99% purity by HPLC and mass spectrometry
Lot-matched Certificate of Analysis available for every lot
Ships from the United States with tracking, in plain packaging

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.

Specification

Purity: ≥99% by HPLC · COA available
Amino Acid Count: 6
Sequence: Ac-Asp-Gly-Gly-Leu-Ala-Gly-NH2 (CNTF-derived hexapeptide)
Synonyms: P021; neurogenic peptidomimetic
Physical Form: Lyophilized powder
Solubility: Soluble in bacteriostatic water; consult the product COA for specific solvent recommendations.
Storage: Store lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; refrigerate reconstituted solution at 2-8°C.

Complete your setup

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

P-21In your order

Reconstitution Solution — 30 mL$30.00Required

Reconstitution Kit$49.99

Total for 2 items$150.00

Answers

Frequently asked.

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.