SNAP-8 · Acetyl octapeptide-3 (acetyl glutamyl heptapeptide-1)

What it is

SNAP-8 is an eight-residue SNAP-25 fragment, two residues longer than Argireline.

What researchers study

Studied for the same SNARE-complex competition as Argireline, in cell and cosmetic research.

Specifications

Sequence	`Ac-EEMQRRAD-NH2`
Molecular formula	C₄₁H₇₀N₁₆O₁₆S
Molecular weight	1075.2 g/mol
PubChem	CID 76283482
Form	Lyophilized powder
Vial sizes	10 mg, 20 mg
Storage	Unopened: 2 to 8 °C, away from light

How each lot is tested

Samples from every lot go to an independent, ISO/IEC 17025 accredited lab. Its report covers three tests:

Purity by reversed-phase HPLC: the main peak's share of the total peak area.
Identity by mass spectrometry: the observed mass should match the expected 1075.2 g/mol.
Endotoxin, measured for every lot.

The lot number on your vial is the number on its report. How to check a certificate of analysis walks through what to look for.

The amount on the label is the weight of the powder. Besides the peptide it includes counter-ions and some water; Purity vs. peptide content explains the difference.

Storage and handling

Store unopened vials at 2 to 8 °C, away from light, as printed on the label. Let a cold vial reach room temperature before you open it, so moisture doesn't condense on the powder. More bench habits are in Handling.

For laboratory research use only. Not for human or veterinary use. This page describes the compound and published research on it. It is not a recommendation for any use.