Selank

Description

What is selank?

Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro), built from the tuftsin sequence Thr-Lys-Pro-Arg with a Pro-Gly-Pro extension. Its molecular weight is 751.9 Da (C33H57N11O9). Peptryn supplies it as a 5mg lyophilized laboratory material.

Selank specifications

Compound	Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro)
Size	5mg
Form	Lyophilized powder
Molecular weight	751.9 Da
Formula	C33H57N11O9
CAS number	129954-34-3

Lot testing and COA

Independent third-party lot testing for this product is in the COA Library. See the Selank 5mg certificate for the current lot’s purity and identity results. Our guide to reading a certificate of analysis explains what a lot-matched report should contain.

Buying guide: selank for sale, with the price, what a research vial is and five checks.

Ordering

Orders placed on peptryn.com ship from the USA with same-day dispatch, and shipping is free on orders over $150. For a question about a lot or a size, email [email protected].

Storage

Store lyophilized powder at -20°C, protected from light and repeated freeze-thaw cycles.

Frequently asked questions

What is selank?

Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro), built from the tuftsin sequence with an added extension, about 752 Da. Peptryn supplies it as a 5mg lyophilized laboratory material. See our Selank guide for its Russian origin and regulatory status.

What purity is Peptryn’s selank?

The current lot tests at 99.87% HPLC purity with identity confirmed by mass spectrometry. See the Selank 5mg certificate for the full report. HPLC purity is area percent, the share of the main peak among all detected peaks; see our guide to peptide purity for what that means.

How is selank stored?

Store lyophilized powder at -20°C, protected from light and repeated freeze-thaw cycles.

What is selank’s CAS number?

Selank’s CAS number is 129954-34-3. Molecular weight: 751.9 Da.

Is selank for human use?

No. Peptryn sells it for laboratory research only, and it is not approved for human or veterinary use. We do not give dosing or administration guidance.

Is Selank legal to buy?

Yes, as a research chemical for laboratory use. Peptryn sells it strictly for research, not for human use, and you must be 21 or older to order. See our guide to peptide legality.

Related: What is a COA? · Peptide testing · Popular peptides

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For laboratory research use only. Not for human or veterinary use, and not a drug, food, dietary supplement or cosmetic. You must be 21 or older to buy.