Molecular Characteristics
Complete Specifications
Structural Composition
pGlu-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser
Physical Properties
ARA-290 is a synthetic 11-amino-acid peptide (pGlu-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser). It is supplied as a lyophilized powder; protection from light, moisture and repeated freeze-thaw cycles helps maintain peptide integrity in storage.
Analysis & Documentation
Identity
Each production lot is checked against the reference structure recorded for this compound:
- Classification — Synthetic peptide
- Molecular formula — C₅₁H₈₄N₁₆O₂₁
- Expected mass — ~1,257.3 Da
- CAS registry — 1208243-50-8
- Chain length — 11 amino acids
- PubChem CID — 91810664
Analytical Methods
Testing is carried out per lot by an independent laboratory. The methods measure what the material is and how much of it is the target compound:
- RP-HPLC — reverse-phase separation of the target from process-related impurities; purity is reported as area percent of the main peak
- Mass spectrometry — observed mass compared against the expected molecular mass above
- Retention time — compared against a reference standard run under the same conditions
- Chromatogram — reproduced on the certificate so the peak and any shoulders can be inspected directly
Material & Documentation
What arrives, and how to tie it back to its paperwork:
- Appearance as supplied — White to off-white lyophilized powder
- Solubility — Water, phosphate-buffered saline (PBS)
- Lot number — printed on the container label and used to look up the certificate
- Certificate — indexed by lot at Certificates of Analysis
Laboratory Handling and Storage Protocols
Lyophilized Powder Storage
- Store at –20°C to –80°C in the original, sealed vial
- Protect from light exposure and moisture
- A desiccated storage environment is recommended
- Stability data suggests extended stability when stored at −20 °C or below.
Stability Characteristics
ARA-290 is supplied as a lyophilized powder, which is comparatively stable when stored sealed at −20 °C or below, protected from light and moisture. Limit freeze-thaw exposure.
Frequently Asked Questions
What is ARA-290?
ARA-290 (CAS 1208243-50-8) is a synthetic peptide supplied as a white to off-white lyophilized powder. Identity and purity are reported per lot on the Certificate of Analysis.
How is ARA-290 supplied?
ARA-290 is supplied as a lyophilized (freeze-dried) powder in a sealed vial, a form chosen for stability during storage and shipment.
How should lyophilized ARA-290 be stored?
Lyophilized ARA-290 should be stored:
-
Long-term: −20 °C to −80 °C
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Short-term: 2–8 °C
Vials should remain sealed and protected from light and moisture.
Does ARA-290 require a Certificate of Analysis (COA)?
Yes. A Certificate of Analysis (COA) should be available for each batch, confirming identity, purity, and analytical testing results to support research quality and traceability.
Is ARA-290 FDA-approved?
No. ARA-290 is not FDA-approved as a drug, supplement, or therapeutic product. It is sold exclusively as a research compound and must not be marketed or used for diagnostic, therapeutic, or consumption purposes.
This product is not for human consumption. It is sold strictly for research and educational purposes and is not intended to diagnose, treat, cure, or prevent any disease.
Any clinical data or research information referenced on this page is derived from peer-reviewed scientific literature and official publications. This information is provided for educational reference only and does not constitute medical advice or product claims.
By purchasing this product, you acknowledge that you are a qualified researcher and agree to use it in full compliance with all applicable laws and regulations.
