SNAP-8

SNAP-8 is a synthetic, N-acetylated and C-terminally amidated octapeptide, Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2 (Ac-EEMQRRAD-NH2), that extends the acetyl-hexapeptide (argireline) motif by two residues. It is listed here strictly as an analytical reference entity — it is not sold, stocked, or certified by Lineará, and has no price or certificate of analysis. The data on this page is characterization only: molecular formula C41H70N16O16S and the values computed from it. No biological activity, mechanism, or use is described or implied.

SNAP-8 has the sequence Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2. SNAP-8 has the sequence Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2 (single-letter Ac-EEMQRRAD-NH2): eight L-amino acids capped with an N-terminal acetyl group and a C-terminal primary amide. Its lone methionine contributes the single sulfur atom, and the sequence computes exactly to the molecular formula C41H70N16O16S (average mass 1075.17 g/mol). No PubChem CID is published here: the record catalogued as "Acetyl octapeptide-3" (CID 71587832) stores a different formula, C42H72N16O15S, which does not reconcile with this sequence, so it is not shipped as a verified identifier and is flagged for chemist review as a likely record error. No InChIKey or FDA UNII is asserted for the same reason — neither could be machine-verified against a reconciled record.

SNAP-8 has the molecular formula C41H70N16O16S, giving an average molecular weight of 1075.17 g/mol and a computed monoisotopic mass of 1074.4876 Da.

The CAS Registry Number for SNAP-8 is 868844-74-0.

Yes. SNAP-8 is a peptide — a chain of amino-acid residues joined by peptide bonds, 8 residues in length. Its identity is defined by that sequence and its molecular mass.

As a research material, SNAP-8 is typically handled as a lyophilized (freeze-dried) powder. It is kept desiccated and cold — commonly 2–8 °C for short periods and −20 °C for longer storage — and reconstituted in sterile or bacteriostatic water. This is storage and handling information only, not a use protocol.

No. SNAP-8 is listed here only as an analytical reference entity. It is not part of the Lineará formulary, has no price or certificate of analysis, and is not offered for sale.

No. SNAP-8 is presented strictly as characterization reference data. It is not a drug, is not approved for any human or veterinary use, and must not be administered to humans or animals.