What is the amino acid sequence of Ara-290?

Ara-290 (cibinetide) is an 11-residue peptide with the sequence pGlu-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser, corresponding to the helix B surface domain of erythropoietin. It is supplied as a lyophilized powder for research use only.

How should Ara-290 be stored in a research setting?

Store the lyophilized powder at -20°C, protected from light and kept desiccated, where it remains stable for approximately 24 months. Once reconstituted with bacteriostatic water, keep it at 2-8°C and use within 30 days, minimizing freeze-thaw cycles.

What solvent is used to reconstitute Ara-290 for research?

For laboratory research applications, Ara-290 is typically reconstituted with bacteriostatic water. Reconstituted material should be aliquoted to avoid repeated freeze-thaw cycles and stored refrigerated.

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Ara-290

Name: Ara-290
Brand: Nexara Labs USA
SKU: ara-290
Price: 58.00 USD
Availability: InStock

≥99%

Ara-290 (cibinetide) is a synthetic 11-amino-acid peptide derived from the helix B domain of erythropoietin that has been the subject of research into innate repair receptor signaling, tissue-protective pathways, and inflammatory-response modulation. Published studies have investigated its role in neuropathic sensory models, corneal nerve-fiber density models, and metabolic-inflammation models in preclinical research. It is one of the more frequently referenced non-hematopoietic erythropoietin-derived peptides in tissue-protection and neuroimmunology research literature.

$58.00· 10 mg

Ara-290Ara-290

$58.00

Research this compound

Research guideMitochondrial-Targeted Peptides: A Research Overview Research libraryBrowse all compound profiles & guides

For research use only. Not for human consumption.

01Specifications

Identity, storage, and what ships.

The technical record. Identity rows reflect literature-cited values for this compound; storage rows describe the conditions under which Nexara holds and ships the lyophilized form.

Identity

Appearance: White to off-white lyophilized powder
Molecular Formula: C51H84N16O21
Molecular Weight: 1257.3 g/mol
CAS Number: 1208243-50-8
Sequence: pGlu-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser
Synonyms: Cibinetide, ARA 290, Ara-290, Helix B surface peptide, pHBSP, Epinepsin
Purity: ≥99%

Storage profile

Storage (Lyophilized): -20°C
Storage (Reconstituted): 2-8°C
Shelf Life (Lyophilized): 24 months
Shelf Life (Reconstituted): Use within 30 days
Reconstitution: Bacteriostatic water
Handling: Protect from light and minimize freeze-thaw cycles. Store lyophilized powder desiccated. For laboratory research use only.

Shipment

—1× vial (10 mg)
—Storage and handling instructions

02Research applications

Studied research areas.

Each item below names a domain in which Ara-290 has been investigated in published research. Listed for context — not as a use recommendation.

01Innate repair receptor (EPOR/CD131 heterocomplex) signaling research
02Tissue-protective and cytoprotective pathway investigations in preclinical models
03Neuropathic sensory and small-nerve-fiber research models
04Inflammatory-response and cytokine-signaling modulation studies
05Corneal nerve-fiber density and neuroregeneration research models
06Metabolic-inflammation and glucose-homeostasis research models

03Quality & verification

Held to research-grade quality standards.

Every batch is held to research-grade quality standards before it ships. Each vial is labeled with its batch identifier so that fulfillment can be traced through the order record. For our research-use-only posture, see the Research Compliance page.

04Frequently asked

Common questions for Ara-290.

For research use only. Not for human consumption.

These products are not intended to diagnose, treat, cure, or prevent any disease. They are sold strictly as research chemicals for laboratory use.

Fulfillment: Orders ship from Texas via USPS within 2 weeks of payment confirmation. You'll receive tracking by email when your package leaves our facility.

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Reviews open as orders are delivered.

Only researchers who've received an order of this compound can submit a review. Submitted text is screened for compliant language before publication. No anonymous testimonials, no AI-generated copy.

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05Continue researching