What is the CAS number for Selank?

The CAS number for Selank is 129954-34-3. Its molecular formula is C₃₃H₅₇N₁₁O₉ (MW 751.9 g/mol).

What doses of Selank are available wholesale?

Wholesale Peptide Supply stocks Selank in 10mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.

Is Selank third-party tested?

Yes. Every lot of Selank is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis is included with every order at no charge, issued in the name of Wholesale Peptide Supply. The most recent published lot, 100089-0948 (10mg), was tested by Optiq Health Labs on 20 August 2026 by RP-HPLC / LC-MS. Every lot on file is listed with its certificate on this page.

Is Selank for human use?

No. Selank is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.

How do I get wholesale pricing for Selank?

Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.

Can I order Selank in bulk?

Yes. Selank is available for bulk and wholesale orders, quoted by dose and volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds, with lower prices at 10 kits and at 100 kits (1,000 vials) in the order. Submit the doses and quantities you need for a bulk quote.

What is Selank derived from?

Selank is a synthetic analog of tuftsin, a short immune-active peptide derived from the heavy chain of immunoglobulin G, extended with a stabilizing Pro-Gly-Pro sequence that slows enzymatic degradation. That origin is why it is studied across both neurotransmitter and cytokine signaling in laboratory models.

Are Semax and Selank studied together?

Frequently. They are the standard comparative pairing in CNS peptide research despite being structurally unrelated — Semax derives from the ACTH (4-10) fragment, Selank from tuftsin. Both are stocked individually, and a Semax / Selank blend is available as a separate catalog line.

Research Use Only. Selank is sold as a chemical reagent for in-vitro laboratory research, not for human or veterinary use. It is not a drug, supplement, or compounded preparation. It must be handled by qualified professionals. Wholesale Peptide Supply is not a pharmacy or compounding facility under 503A or 503B.

Cognitive / NeuroCAS 129954-34-3

Wholesale Selank — Bulk Research Supply

Available sizes

10mg$20.56/vial See pricing & order

In-stock orders ship same day when paid by 1 pm PT, Mon–Fri. Overnight available.

Buy Selank wholesale and in bulk from a US-based research peptide supplier. Every lot is sourced in the USA and third-party tested, with the lab and method on each lot's certificate. Bulk Selank is quoted by dose and volume from a 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices are earned at 10 kits and again at 100 kits in the order, mix and match.

Selank is a synthetic heptapeptide analog of tuftsin studied for neurotransmitter signaling, stress response, and immune signaling.

Wholesale Selank 10mg lyophilized vial — Wholesale Peptide Supply — Selank 10mg lyophilized vial as supplied. Labeling is customizable for private-label orders.

Wholesale Catalog

Available Doses

Published per-vial wholesale pricing for Selank. Sold in kits of 10 vials with a 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices apply at 10 kits and at 1,000+ vials in the order. Contact us for larger or custom-volume quotes — answered the same day. Urgent? Text or call (714) 625-9215 — you’ll reach a real person in the United States, not a chatbot or an overseas call center.

Selank 10mg

WPSSK10 · CAS 129954-34-3 · Cognitive / Neuro

1–9 kits: $20.56/vial$18.50 paying by card
10–99 kits: $16.45/vial$14.80 paying by card
100+ kits: $13.16/vial$11.84 paying by card

10% off with card Every product, every volume band — taken off at checkout when you choose card.

Sold in kits of 10 vials · 3-kit order minimum, mix and match · price set by the total kits in your order (BAC water not counted)

Quantity

vials

3 kits

Request a custom quote

Questions? Text a rep or call (714) 625-9215 — a real person in the US answers.

Overview

Selank is a synthetic heptapeptide analog of tuftsin studied for neurotransmitter signaling, stress response, and immune signaling.

History

Developed at the Institute of Molecular Genetics of the Russian Academy of Sciences in the 1990s.

Structure and mechanism

Selank is a synthetic heptapeptide analog of tuftsin, the short immune-active peptide derived from the heavy chain of immunoglobulin G. Native tuftsin is a tetrapeptide and degrades quickly; Selank extends it with a stabilizing Pro-Gly-Pro sequence — the same C-terminal strategy used in Semax — which slows enzymatic breakdown enough to make the molecule practical as a research reagent.

That dual ancestry is what makes it distinctive: it is studied across two normally separate domains. Laboratory work covers GABAergic activity and neurotransmitter dynamics on the CNS side, and cytokine and immune signaling on the side inherited from tuftsin, with anxiety-pathway modeling drawing on both. It was developed at the Institute of Molecular Genetics of the Russian Academy of Sciences in the 1990s and weighs 751.9 g/mol (C₃₃H₅₇N₁₁O₉).

Reconstitution and handling (research use)

Wholesale Selank ships lyophilized. At heptapeptide scale it dissolves quickly in bacteriostatic or sterile water and, unlike the larger peptides in the catalog, needs no special precautions against shear or foaming. Its formula contains no sulfur, so the oxidation sensitivity that governs methionine- and cysteine-containing peptides is not a limiting factor here.

Lyophilized powder is generally stored at -20°C protected from light; reconstituted solution is refrigerated at 2–8°C and used within the study's working window. These notes cover general laboratory handling of a chemical reagent only — not human or veterinary use.

Wholesale sourcing notes

Selank is stocked wholesale in a 10 mg presentation. Every lot is US-sourced and independently verified by a third-party lab for identity, purity, and quantitation, with a per-lot COA included in every order.

It is most often ordered alongside Semax — the two are the standard comparative pairing in CNS peptide research — and a Semax/Selank blend is stocked as a separate line. Pricing is in three bands set by the order's total kits — 1–9 kits, 10–99 kits and 100+ kits (1,000 vials), mix and match — from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.

Certificates of Analysis

4 certificates are on file for Selank — open any one to read the full report.

Lot / Lab	Dose	Tested	Purity
100089-0948Optiq Health LabsRP-HPLC / LC-MS	10mg	2026-08-20	—
100057-0614Optiq Health LabsRP-HPLC / LC-MS	10mg	2026-08-05	—
100032-0302Optiq Health LabsRP-HPLC / LC-MS	10mg	2026-07-29	—
100031-0289Optiq Health LabsRP-HPLC	10mg	2026-07-27	—

Key Areas of Research

GABAergic activity, neurotransmitter dynamics
Cytokine signaling
Anxiety-pathway modeling

References

Zozulya A.A. et al. (2008). Bull Exp Biol Med 145(5):583–585.
Semenova T.P. et al. (2010). Eksp Klin Farmakol 73(8):2–5.

Selank — Frequently Asked Questions

What is Selank?: Selank is a synthetic heptapeptide analog of tuftsin studied for neurotransmitter signaling, stress response, and immune signaling.
What is the CAS number for Selank?: The CAS number for Selank is 129954-34-3. Its molecular formula is C₃₃H₅₇N₁₁O₉ (MW 751.9 g/mol).
What doses of Selank are available wholesale?: Wholesale Peptide Supply stocks Selank in 10mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.
Is Selank third-party tested?: Yes. Every lot of Selank is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis is included with every order at no charge, issued in the name of Wholesale Peptide Supply. The most recent published lot, 100089-0948 (10mg), was tested by Optiq Health Labs on 20 August 2026 by RP-HPLC / LC-MS. Every lot on file is listed with its certificate on this page.
Is Selank for human use?: No. Selank is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.
How do I get wholesale pricing for Selank?: Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.
Can I order Selank in bulk?: Yes. Selank is available for bulk and wholesale orders, quoted by dose and volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds, with lower prices at 10 kits and at 100 kits (1,000 vials) in the order. Submit the doses and quantities you need for a bulk quote.
What is Selank derived from?: Selank is a synthetic analog of tuftsin, a short immune-active peptide derived from the heavy chain of immunoglobulin G, extended with a stabilizing Pro-Gly-Pro sequence that slows enzymatic degradation. That origin is why it is studied across both neurotransmitter and cytokine signaling in laboratory models.
Are Semax and Selank studied together?: Frequently. They are the standard comparative pairing in CNS peptide research despite being structurally unrelated — Semax derives from the ACTH (4-10) fragment, Selank from tuftsin. Both are stocked individually, and a Semax / Selank blend is available as a separate catalog line.