What is the CAS number for Selank?

Selank is registered under CAS Registry Number 129954-34-3.

What is the molecular formula of Selank?

The molecular formula of Selank is C33H57N11O9, with a molecular weight of 751.88 g/mol.

What's included with each Selank lot?

Every lot of Selank ships with a per-lot Certificate of Analysis (COA) from an independent US laboratory documenting ≥99.0% purity by HPLC and mass-spectrometry identity confirmation. The COA is QR-linked from the vial label.

How is Selank verified?

Each lot of Selank is independently verified at Chromate.org, a US analytical laboratory, with HPLC purity, mass-spectrometry identity, and heavy-metal screening. The per-lot Certificate of Analysis is published on this page and ships printed in every package.

How is Selank stored?

Lyophilized Selank is shipped at ambient temperature in protective packaging. For long-term laboratory storage, refer to the per-lot Certificate of Analysis storage notes specific to the lot you receive.

CNS / neuroprotection research

Selank

CAS 129954-34-3

Dosechoose vial size

In stock · 100 vials on hand

Quantity1–500 vials

× $33.00

First order? Code FIRST10 takes 10% off and is applied for you at checkout.

Bulk pricingPrice drops as you scale

Tap a tier to set quantity — auto-applies in cart · 100+ price holds to 500 per cart.

This lot is tested. Lot 00011/0011 · 99.76% purity by HPLC · AV AnalyticsView the COA →
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Made in the USA. Synthesized in an ISO-7 cleanroom; a printed COA ships in the box.Facility →

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Quality · Sourcing · Verification

Synthesized in our US-based ISO-7 certified cleanroom laboratory under cGMP-aligned procedures.
Secure facility with 24-hour CCTV cold-chain storage and time-locked chain-of-custody protocols.
Independently verified by Chromate.org — HPLC purity, mass-spec identity, and heavy-metal screening per lot.
Per-lot Certificate of Analysis published on this page; a printed copy ships inside every package.
US-domestic shipping only · free standard shipping on every order.

This product is for laboratory research use only. Not for human or veterinary use. Not a drug, supplement, or medical device.

Molecular data

CAS number: 129954-34-3
Mol. formula: C33H57N11O9
Mol. weight: 751.88 g/mol
Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro
Purity: ≥ 99.0%
Lot number: Assigned at shipment

Certificate of Analysis

Independent third-party verified

Purity (HPLC): 99.76%
Batch: 00011/0011
Laboratory: AV Analytics
Analyzed: Sep 3, 2026

Certificate of Analysis — Selank batch 00011/0011

View full COA

Summary

CAS 129954-34-3 · 751.88 g/mol · ≥99% by HPLC · from $33 (single) to $46 (10-pack)

Synthetic tuftsin analog studied in anxiolytic and immunomodulatory research literature.

Read the full Selank compound profile — mechanism, published research, and references →

Research context

Kost et al., Bull Exp Biol Med (2001).

Published research

Primary literature on this compound — trial design, endpoints and limitations. Summaries, not recommendations.

Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurastheniaZh Nevrol Psikhiatr Im S S Korsakova · 2007

Browse the full study library

About Selank

What is Selank?: Synthetic tuftsin analog studied in anxiolytic and immunomodulatory research literature.
What is the CAS number for Selank?: Selank is registered under CAS Registry Number 129954-34-3.
What is the molecular formula of Selank?: The molecular formula of Selank is C33H57N11O9, with a molecular weight of 751.88 g/mol.
What research context is Selank studied in?: Kost et al., Bull Exp Biol Med (2001).
What's included with each Selank lot?: Every lot of Selank ships with a per-lot Certificate of Analysis (COA) from an independent US laboratory documenting ≥99.0% purity by HPLC and mass-spectrometry identity confirmation. The COA is QR-linked from the vial label.
How is Selank verified?: Each lot of Selank is independently verified at Chromate.org, a US analytical laboratory, with HPLC purity, mass-spectrometry identity, and heavy-metal screening. The per-lot Certificate of Analysis is published on this page and ships printed in every package.
How is Selank stored?: Lyophilized Selank is shipped at ambient temperature in protective packaging. For long-term laboratory storage, refer to the per-lot Certificate of Analysis storage notes specific to the lot you receive.
Is Selank approved for human or veterinary use?: No. This product is for laboratory research use only. Not for human or veterinary use. Not a drug, supplement, or medical device. Customers certify research use at checkout per our Terms of Sale.

Research use only

This product is for laboratory research use only. Not for human or veterinary use. Not a drug, supplement, or medical device. By purchasing, customer certifies research use per our Terms of Sale.