Compare prices and buy N-Acetyl Selank from 6 research peptide vendors - also called suppliers or sources. Updated daily.
A modified form of the heptapeptide Selank carrying an N-terminal acetyl group and a C-terminal amide, often sold as N-Acetyl Selank Amidate. The end caps are meant to block the enzymes that trim peptides from either end. PubMed indexes no study of the modified peptide itself, so vendor descriptions of its activity draw on research into parent Selank. Not FDA-approved.
For research purposes only. Not medical advice.
N-Acetyl Selank is Selank with both ends of its seven-residue chain capped. An acetyl group sits on the amino group of the N-terminal threonine, and the C-terminal proline ends in an amide instead of a carboxylic acid, giving Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2.
PubChem and FDA's substance registry hold only a partly capped version. PubChem's compound record under the name N-acetyl Selank, created in May 2018, is acetylated at the N-terminus but keeps a free carboxylic acid at the C-terminus. It gives the formula C35H59N11O10 and a molecular weight of 793.9, 42 daltons above Selank's, and PubChem links no published literature to it. FDA's Global Substance Registration System carries the same free-acid structure under UNII J3PM702O93, and its sources include two vendors' product pages for nasal sprays. FDA states that a UNII does not imply any regulatory review or approval.
As of October 21, 2026 neither registry holds a record of the amidated structure, and neither gives a CAS number for either form. Replacing the C-terminal acid with an amide lowers the mass by about one dalton, which places the amidated peptide near 792.9.
As of October 21, 2026 no published study of acetylated or amidated Selank was found. A PubMed search for Selank papers whose title or abstract mentions acetylation or amidation returned a single 2005 paper on plain Selank, matched through the word acetylcholine. Europe PMC returns no paper for N-acetyl Selank, Selank amidate, Selank amide, acetylated Selank or NA-Selank, and ClinicalTrials.gov lists no study under N-acetyl Selank, Selank amidate or NA-Selank. No study in humans was found.
Selank's mechanism and its Russian trials are on the Selank page, and none of that research tested the end-capped form. End caps can change what a peptide does as well as how long it lasts, and the N-Acetyl Semax page covers a cell study in which an acetylated peptide behaved differently from its parent.
As of October 21, 2026, N-Acetyl Selank holds no FDA approval, and none of these sources names it or any other acetylated form of Selank.
Selank's own compounding record is on the Selank page, and the FDA documents behind it name the unmodified peptide. The Category 2 page lists it as Selank acetate (TP-7), and PubChem records Selank acetate as unmodified Selank paired with acetic acid, a salt, so that entry concerns a different substance from the N-acetylated peptide despite the similar name.
No. Selank acetate is a salt, the unmodified Selank heptapeptide paired with acetic acid, which PubChem records as a two-component substance with the formula C35H61N11O11. N-Acetyl Selank is a modified peptide, with an acetyl group bonded to the N-terminal threonine, and the form sold as N-Acetyl Selank Amidate also carries an amide at the C-terminal proline. The Selank acetate entry on FDA's Category 2 page of bulk drug substances that may present significant safety risks therefore concerns plain Selank, not the acetylated peptide. PeptideScouter indexes Selank and N-Acetyl Selank as separate rows.
No human study was found. As of October 21, 2026 ClinicalTrials.gov lists no registered study under N-acetyl Selank, Selank amidate or NA-Selank, and searches of PubMed and Europe PMC found no published study of acetylated or amidated Selank of any kind. Vendor descriptions of its activity draw on research into plain Selank, and none of that research tested the end-capped peptide.
No. As of October 21, 2026 drugsfda returns no application under the name Selank, and no acetylated Selank appears on FDA's Category 2 page of bulk drug substances that may present significant safety risks, on the 503A nominations list updated May 14, 2026, or on the 503B nominations list updated March 21, 2025. The Pharmacy Compounding Advisory Committee's minutes for October and December 2024 and its July 2026 agenda do not name it. The Selank acetate (TP-7) entry on the Category 2 page concerns a salt of plain Selank, not the N-acetylated peptide.
Neither PubChem nor FDA's Global Substance Registration System gives one as of October 21, 2026. Both hold a record named N-acetyl Selank, and it describes Selank acetylated at the N-terminus but ending in a free carboxylic acid, with the formula C35H59N11O10 and a molecular weight of 793.9. Neither registry holds a record of the amidated form, Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2, which weighs about one dalton less than the free acid.
N-Acetyl Selank is sold by 6 research peptide vendors indexed on PeptideScouter, with 7 tracked listings compared per vendor in the table above. Pricing is normalized and refreshed daily.
All 6 indexed research peptide vendors currently have N-Acetyl Selank in stock. Stock state is refreshed daily from each vendor's catalog.
Disguised Alpha currently lists N-Acetyl Selank at $2.67/mg, the lowest listed price across 6 tracked research peptide vendors. With current vendor discount codes applied, the lowest effective price is $2.40/mg.
Discount codes are issued per vendor rather than per peptide, so any code applies across that vendor's whole catalog. All 6 vendors listing N-Acetyl Selank publish a PeptideScouter code, worth 10% to 20% off. Applied, the lowest effective price falls from $2.67/mg listed to $2.40/mg at Disguised Alpha. Each vendor's code is shown beside its price in the table above.
N-Acetyl Selank ranges from $2.67/mg to $4.90/mg across 7 listings from 6 research peptide vendors, normalized to USD per milligram and refreshed daily.
6 research peptide vendors currently list N-Acetyl Selank on PeptideScouter. We track 7 listings across size and kit variants.
