Cibinetide ARA-290 CAS 1208243-50-8 Lyophilized EPO Derivative Peptide Reagent for Lab Grade Research and Development

ARA-290 (Cibinetide) is a synthetic 11-amino acid peptide derived from the non-hematopoietic domain of erythropoietin (EPO). It acts as a selective agonist for the EPO/CD131 heteroreceptor, retaining the tissue-protective and anti-inflammatory properties of EPO without inducing erythropoiesis.
Our ARA-290 is synthesized via advanced solid-phase peptide synthesis (SPPS) and purified to ≥98.0% purity by HPLC. It is supplied as a stable lyophilized powder to ensure maximum stability, solubility, and bioactivity for research and cosmetic applications.
Key Specifications
CAS Number: 1208243-50-8
Molecular Formula: C₅₁H₈₄N₁₆O₂₁
Molecular Weight: 1257.31 g/mol
Sequence: Pyr-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser-OH
Appearance: White to off-white lyophilized powder
Purity: ≥98.0% (HPLC certified)
Grade: Research Grade / Cosmetic Grade
Storage: -20°C (long-term), 2-8°C (short-term)
Shelf Life: 24 months
Core Features
High Purity & Quality: Rigorous HPLC testing ensures ≥98.0% purity with low impurities and endotoxins, guaranteeing batch-to-batch consistency.
Selective Biological Activity: Targets EPO/CD131 heteroreceptor for tissue protection and anti-inflammation, no erythropoietic side effects.
Superior Stability: Lyophilized form preserves peptide integrity, extends shelf life, and simplifies shipping/storage.
Precise Dosage Packaging: Available in 2mg, 5mg, 10mg sterile vials for accurate, convenient use in research and formulation.
Full Compliance: For research/cosmetic use only, with complete COA, HPLC, MSDS documentation.
Intended Use
For laboratory research and cosmetic formulation only (RUO). Not for human/animal consumption, medical, therapeutic, or clinical applications. Use in accordance with local regulations.
Handling Notes
Reconstitute with sterile water/buffer before use.
Store desiccated at -20°C, avoid light/moisture.
Refer to MSDS for safety guidelines.

Our ARA-290 delivers unmatched quality, stability, and performance for global researchers and formulators:
Ultra-High Purity: ≥98.0% HPLC-verified purity with full COA, ensuring reliable research and formulation results.
Selective Activity Profile: Retains EPO’s tissue-protective/anti-inflammatory benefits without hematopoietic risks, ideal for targeted studies.
Enhanced Stability: Lyophilized powder format maximizes shelf life and preserves bioactivity during transport and storage.
Flexible Dosage Options: 2mg, 5mg, 10mg sterile vials meet small-scale research and formulation needs.
Strict Quality Control: Manufactured under GMP-like conditions with third-party testing and full technical support.
Trusted for purity, consistency, and regulatory compliance, our ARA-290 is your top choice for peptide research and cosmetic innovation.

CAS No.：1208243-50-8

Purity (HPLC) ≥99.0%

Single impurity≤1%

Peptide content≥80.0%

Amino Acid Composition≤±15%

Bacterial Endotoxins≤5EU/mg

Vacuum-packed with aluminum foil bag or penicillin bottle. 10mg,50mg,100mg,1g,10g, 50g per package with icebag. Or according to your request. 

Retatrutide(LY3437943) is an agonist of glucose-dependent insulinotropic polypeptide, glucagon-like peptide 1 and glucagon receptors.

Storage:Cool dry place( Store at -20°C, away from the light)

Remark:For Research Use Only. Not for human use.

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