How Long Does ARA 290 Last? Shelf Life & Stability
"Stable" is meaningless without saying stable against what. ARA 290 has its own set of degradation routes, and they determine which storage precautions actually matter for it.
Overview
Reasonably stable. Over long storage the likeliest slow change is deamidation; at very low strengths it can stick to plastic, so low-bind tubes help.
What ARA 290 actually is
A short 11-part peptide modelled on the repair-signalling corner of EPO, built to switch on tissue repair without EPO's effect on red blood cells. It is studied around nerve comfort, inflammation, and healing.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
Degradation routes specific to ARA 290
- Asparagine/glutamine deamidation is the most plausible slow route for this sequence.
- Adsorptive loss to plasticware at low working concentrations.
- Microbial growth in non-preserved diluent.
No folded tertiary structure to lose — handling concerns are those of a small linear peptide, not a protein.
Freeze–thaw tolerance
Aliquot on first reconstitution; the short backbone tolerates a freeze better than folded proteins but repeated cycles still concentrate solutes at the ice interface.
How storage addresses these routes
Practical window once reconstituted: 2-4 weeks at 2-8 °C in bacteriostatic water.
Full ARA 290 storage conditionsWhat ARA 290 is studied for
Studied for selective engagement of the EPOR/beta-common receptor heteromer that mediates tissue-protective signalling, distinct from the classical erythropoietic receptor.
A substantial share of the published literature examines small-fibre and neuropathic-pain research models.
Investigated for modulation of inflammatory pathways in preclinical tissue-injury models.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More ARA 290 reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Stability reference for other compounds
ARA 290 is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.