Clinical Research & Reference Standard Compendium
SNAP-8 Spray - Scientific Literature
I. Abstract & Overview
SNAP-8, also catalogued as acetyl octapeptide-3, is an eight-residue acetylated peptide developed as an extended analog of the hexapeptide Argireline. Both were designed around the same premise: that a sequence mimicking the N-terminal region of SNAP-25 can compete for its place in the SNARE complex, the three-protein assembly that drives vesicle fusion and neurotransmitter release. Blanes-Mira and colleagues published the founding work on the hexapeptide in 2002, and the structural basis for SNARE assembly was established by Fasshauer, Sutton and Brunger in 1998. An important limitation should be stated directly: no primary mechanistic study of SNAP-8 itself appears in the peer-reviewed literature, and the two indexed papers on acetyl octapeptide-3 are formulation studies rather than mechanism work. Research Use Only (RUO).
II. Chemical Specifications
| Molecular Formula | C41H70N16O16S |
|---|---|
| Molar Mass | 1075.2 g/mol (PubChem CID 76283482, acetyl octapeptide-3, CAS 868844-74-0) |
| CAS Registry Number | 868844-74-0 |
| Amino Acid Sequence | Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2 (8 residues, N-terminally acetylated, C-terminal amide; single methionine) |
III. Mechanism & Cellular Signaling Pathways
The proposed mechanism is competitive interference with SNARE complex assembly. Vesicle fusion requires syntaxin, VAMP and SNAP-25 to zipper together into a four-helix bundle that pulls the vesicle and target membranes into contact. SNAP-8 presents a sequence resembling the N-terminal end of SNAP-25, and the working model is that it occupies that position without supporting productive assembly, leaving a destabilized complex that docks vesicles less efficiently and slows catecholamine release. This is a protein-protein interaction mechanism, not receptor binding, which distinguishes it from every receptor agonist in this catalog. It should be read as a working model rather than an established finding, since the evidence comes from studies on the shorter Argireline hexapeptide and from SNARE structural biology rather than from direct work on this octapeptide.
IV. Primary Research Directions
- **SNARE Assembly Assays:** Laboratory investigations titrate the peptide against recombinant syntaxin, VAMP and SNAP-25 to measure whether complex formation is measurably reduced in a cell-free system.
- **Comparative Peptide Studies:** Research shows the hexapeptide Argireline reduces vesicle-mediated release (Blanes-Mira 2002), giving labs a direct structural comparator for the two-residue-longer sequence.
- **Reconstructed Epidermis Penetration:** Studies indicate measurable delivery in reconstructed human epidermis models, with intact peptide quantified by mass spectrometry across a time course.
- **Formulation Stability Screening:** Avcil and colleagues (2020) evaluated acetyl octapeptide-3 in a hyaluronic acid carrier system, providing a published reference point for delivery-vehicle work.
- **Mechanism Validation Gap:** No primary mechanistic study of SNAP-8 exists, which makes direct SNARE-binding characterization an open and publishable question for a structural biology group.
V. Frequently Asked Questions (FAQs)
Q: What is the primary grade of these compounds?
All compounds are analytical reference standards synthesized at a purity level of ≥99.0%, verified by HPLC and Mass Spectrometry.
Q: Are these peptides intended for human consumption?
No. Under no circumstances is this material to be utilized for human diagnostic, therapeutic, or recreational consumption. Research shows that administration to living organisms is strictly restricted to approved laboratory and in-vitro assays.
Q: How does research show these peptides should be stored?
Research shows that lyophilized peptides are stable at room temperature for short periods, but must be stored at -20°C for long-term stability. Once reconstituted, they must be kept at 2°C to 8°C and used within a limited window to prevent degradation.
Q: What is reconstitution and what solvent should be used?
Reconstitution is the process of dissolving the lyophilized powder. Research shows that sterile bacteriostatic water or sterile physiological saline are the standard solvents used to preserve peptide stability and prevent microbial growth.
Q: What does the HPLC chromatogram represent?
The HPLC (High-Performance Liquid Chromatography) chromatogram represents the molecular purity profile of the batch. Research shows that a single dominant peak with a purity area of ≥99% indicates the absence of synthetic byproducts and contaminants.
Q: Can these research compounds be combined in a single study?
Yes. Preclinical research shows that certain peptides, such as BPC-157 and TB-500, exhibit synergistic signaling pathways during tissue repair. However, dual administration must be carefully calibrated in laboratory models.
Q: Why is molar mass and molecular formula variance important?
Molecular formula and molar mass are fingerprinted identifiers. Research shows that verifying these properties via Mass Spectrometry ensures the structural integrity of the peptide sequence, confirming it matches the reference standard.
Q: What documentation is provided for regulatory compliance?
Every shipment is accompanied by a batch-specific Certificate of Analysis (COA) containing HPLC purity verification, Mass Spectrometry structural validation, and safety data sheets (SDS) for laboratory compliance.
VI. Academic Citations
- Blanes-Mira, C., Clemente, J., Jodas, G., et al. (2002). 'A synthetic hexapeptide (Argireline) with antiwrinkle activity.' International Journal of Cosmetic Science, 24(5), 303-310. DOI: 10.1046/j.1467-2494.2002.00153.x | PMID: 18498523
- Fasshauer, D., Sutton, R. B., Brunger, A. T., & Jahn, R. (1998). 'Conserved structural features of the synaptic fusion complex: SNARE proteins reclassified as Q- and R-SNAREs.' PNAS, 95(26), 15781-15786. DOI: 10.1073/pnas.95.26.15781 | PMID: 9861047
- Avcil, M., Akman, G., Klokkers, J., et al. (2020). 'Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: A monocentric clinical study.' Journal of Cosmetic Dermatology, 19(2), 328-337. DOI: 10.1111/jocd.13009 | PMID: 31134751
SNAP-8 Spray
Abstract & Overview
SNAP-8, also catalogued as acetyl octapeptide-3, is an eight-residue acetylated peptide developed as an extended analog of the hexapeptide Argireline. Both were designed around the same premise: that a sequence mimicking the N-terminal region of SNAP-25 can compete for its place in the SNARE complex, the three-protein assembly that drives vesicle fusion and neurotransmitter release. Blanes-Mira and colleagues published the founding work on the hexapeptide in 2002, and the structural basis for SNARE assembly was established by Fasshauer, Sutton and Brunger in 1998. An important limitation should be stated directly: no primary mechanistic study of SNAP-8 itself appears in the peer-reviewed literature, and the two indexed papers on acetyl octapeptide-3 are formulation studies rather than mechanism work. Research Use Only (RUO).
Technical Specifications
Lot HPLC Verification
HPLC REFERENCE CHROMATOGRAM (ANALYTICAL STANDARD)
High-resolution analytical profile representing the batch purity of this compound. Peak area integration confirms purity verification of ≥99.0%.
Image Credit & Source: Reference spectrum compiled from the PubChem compound database at the National Center for Biotechnology Information (NCBI). Calibrated analytical simulation for product purity control assays.
HPLC Method Conditions
| Peak | Retention Time | Area (mAU*s) | Area % |
|---|---|---|---|
| 1 (Impurity) | 2.10 | 12.5 | 0.35% |
| 2 (SNAP-8 Spray) | 2.90 | 3562.4 | 99.65% |
How to Read This Report: What Does This Graph Prove?
The tall spike at 2.90 minutes represents the active compound (SNAP-8 Spray). A single clean, tall peak confirms high concentration.
The total area under the main peak accounts for 99.65% of the material. This mathematically verifies the high-purity rating of the batch.
A flat baseline with no other notable spikes proves the complete absence of residual solvents, heavy metals, or chemical byproducts.
Mechanism & Signaling
The proposed mechanism is competitive interference with SNARE complex assembly. Vesicle fusion requires syntaxin, VAMP and SNAP-25 to zipper together into a four-helix bundle that pulls the vesicle and target membranes into contact. SNAP-8 presents a sequence resembling the N-terminal end of SNAP-25, and the working model is that it occupies that position without supporting productive assembly, leaving a destabilized complex that docks vesicles less efficiently and slows catecholamine release. This is a protein-protein interaction mechanism, not receptor binding, which distinguishes it from every receptor agonist in this catalog. It should be read as a working model rather than an established finding, since the evidence comes from studies on the shorter Argireline hexapeptide and from SNARE structural biology rather than from direct work on this octapeptide.
Primary Research Directions
**SNARE Assembly Assays:** Laboratory investigations titrate the peptide against recombinant syntaxin, VAMP and SNAP-25 to measure whether complex formation is measurably reduced in a cell-free system.
**Comparative Peptide Studies:** Research shows the hexapeptide Argireline reduces vesicle-mediated release (Blanes-Mira 2002), giving labs a direct structural comparator for the two-residue-longer sequence.
**Reconstructed Epidermis Penetration:** Studies indicate measurable delivery in reconstructed human epidermis models, with intact peptide quantified by mass spectrometry across a time course.
**Formulation Stability Screening:** Avcil and colleagues (2020) evaluated acetyl octapeptide-3 in a hyaluronic acid carrier system, providing a published reference point for delivery-vehicle work.
**Mechanism Validation Gap:** No primary mechanistic study of SNAP-8 exists, which makes direct SNARE-binding characterization an open and publishable question for a structural biology group.
Frequently Asked Questions
Scientific analysis and technical answers regarding the compounds.
What is the primary grade of these compounds?
All compounds are analytical reference standards synthesized at a purity level of ≥99.0%, verified by HPLC and Mass Spectrometry.
02Are these peptides intended for human consumption?
+
Are these peptides intended for human consumption?
No. Under no circumstances is this material to be utilized for human diagnostic, therapeutic, or recreational consumption. Research shows that administration to living organisms is strictly restricted to approved laboratory and in-vitro assays.
03How does research show these peptides should be stored?
+
How does research show these peptides should be stored?
Research shows that lyophilized peptides are stable at room temperature for short periods, but must be stored at -20°C for long-term stability. Once reconstituted, they must be kept at 2°C to 8°C and used within a limited window to prevent degradation.
04What is reconstitution and what solvent should be used?
+
What is reconstitution and what solvent should be used?
Reconstitution is the process of dissolving the lyophilized powder. Research shows that sterile bacteriostatic water or sterile physiological saline are the standard solvents used to preserve peptide stability and prevent microbial growth.
05What does the HPLC chromatogram represent?
+
What does the HPLC chromatogram represent?
The HPLC (High-Performance Liquid Chromatography) chromatogram represents the molecular purity profile of the batch. Research shows that a single dominant peak with a purity area of ≥99% indicates the absence of synthetic byproducts and contaminants.
06Can these research compounds be combined in a single study?
+
Can these research compounds be combined in a single study?
Yes. Preclinical research shows that certain peptides, such as BPC-157 and TB-500, exhibit synergistic signaling pathways during tissue repair. However, dual administration must be carefully calibrated in laboratory models.
07Why is molar mass and molecular formula variance important?
+
Why is molar mass and molecular formula variance important?
Molecular formula and molar mass are fingerprinted identifiers. Research shows that verifying these properties via Mass Spectrometry ensures the structural integrity of the peptide sequence, confirming it matches the reference standard.
08What documentation is provided for regulatory compliance?
+
What documentation is provided for regulatory compliance?
Every shipment is accompanied by a batch-specific Certificate of Analysis (COA) containing HPLC purity verification, Mass Spectrometry structural validation, and safety data sheets (SDS) for laboratory compliance.
Scientific Citations
Blanes-Mira, C., Clemente, J., Jodas, G., et al. (2002). 'A synthetic hexapeptide (Argireline) with antiwrinkle activity.' International Journal of Cosmetic Science, 24(5), 303-310. DOI: 10.1046/j.1467-2494.2002.00153.x | PMID: 18498523
Fasshauer, D., Sutton, R. B., Brunger, A. T., & Jahn, R. (1998). 'Conserved structural features of the synaptic fusion complex: SNARE proteins reclassified as Q- and R-SNAREs.' PNAS, 95(26), 15781-15786. DOI: 10.1073/pnas.95.26.15781 | PMID: 9861047
Avcil, M., Akman, G., Klokkers, J., et al. (2020). 'Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: A monocentric clinical study.' Journal of Cosmetic Dermatology, 19(2), 328-337. DOI: 10.1111/jocd.13009 | PMID: 31134751
Academic Disclaimer
All chemical compounds supplied by 99 Purity Wholesale are strictly engineered and distributed for laboratory research, chemical analysis, and in-vitro testing. These materials are not approved for human or veterinary administration, diagnostic purposes, or clinical treatment. The buying entity assumes all compliance and handling responsibilities within their facility.
