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ARA 290 10mg
£24.99
In stock
IN STOCK — ships Monday
ARA-290 10mg synthetic peptide reference material supplied in lyophilised form for controlled laboratory and analytical research. Verified by HPLC and mass spectrometry with batch-specific documentation.
Free UK Delivery over £100
Certificate of Analysis (COA)
HPLC Tested
99% Purity
Batch & Certificate Verification
Batch: 4212
Shipping to United Kingdom (UK): Royal Mail Tracked 24, Royal Mail Guaranteed by 1pm
Add Bacteriostatic Water (Recommended)
In stock
Research Description
ARA 290 10mg
ARA-290 10mg
ARA-290 10mg – Research Reference Material
Research Grade • Lyophilised Form • HPLC and Mass Spectrometry Verified • Batch-Specific Documentation
Overview
Peptiology’s ARA-290 10mg is a synthetic peptide reference material supplied in lyophilised form for controlled laboratory, analytical and biochemical research.
ARA-290, also known as Cibinetide, pHBSP and Pyroglutamate Helix B Surface Peptide, is an 11-amino-acid peptide derived from the helix-B surface region of erythropoietin (EPO). It has been investigated in preclinical research involving tissue-protective signalling, cellular stress responses, inflammation-related pathways and the innate repair receptor.
Product Specifications
Product Name: ARA-290 10mg
Alternative Names: Cibinetide, pHBSP, Pyroglutamate Helix B Surface Peptide
Peptide Length: 11 amino acids
Sequence: pyroGlu-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser
Molecular Formula: C₅₁H₈₄N₁₆O₂₁
Molecular Weight: approximately 1,257.3 g/mol
CAS Number: 1208243-50-8
Form: Lyophilised solid
Purity: ≥99% where confirmed by the applicable batch COA
Analytical Methods: HPLC and mass spectrometry
The molecular specifications above are supported by current research-product and analytical references, although reported formulae can vary depending on whether the material is specified as the acetate or another form. The definitive molecular identity, salt/form, purity and analytical results for each Peptiology batch should therefore be confirmed against the applicable Certificate of Analysis.
Storage and Laboratory Handling
ARA-290 is supplied in lyophilised form to support stability during storage and transport.
Store the unopened material according to the conditions specified in the applicable product documentation and batch-specific Certificate of Analysis. Research references commonly specify storage at –20°C, protected from moisture and direct light.
Laboratory preparation should be carried out using suitable research-grade materials, appropriate equipment and documented handling procedures.
Once prepared for laboratory analysis, storage conditions should be determined according to the validated requirements of the relevant research protocol.
Synthesis and Quality Assurance
Our ARA-290 is supplied as a synthetic peptide reference material with quality-assurance procedures designed to support:
High sequence fidelity
Consistent molecular identity
Reliable batch-to-batch specifications
Traceable analytical documentation
Reproducible research material
Each batch is assessed using applicable analytical techniques such as HPLC and mass spectrometry. A batch-specific Certificate of Analysis is available to support analytical transparency and traceability.
Research Applications
ARA-290 has been investigated in laboratory and preclinical research involving:
Peptide identification and characterisation
EPO-derived peptide research
Innate repair receptor signalling
Cellular stress-response pathways
Neurobiological research models
Inflammation-related cellular research
Tissue-protective signalling mechanisms
Molecular and biochemical analysis
ARA-290 is studied as a research compound derived from the helix-B region of EPO, with research focusing on signalling pathways distinct from the classical erythropoietic activity of full-length EPO. These descriptions relate to laboratory and preclinical research contexts and should not be interpreted as claims of therapeutic efficacy or established clinical use.
Why Choose Peptiology?
Peptiology specialises in high-purity laboratory research materials, offering:
Direct manufacturer relationships
Transparent and traceable sourcing
Independent analytical verification
Batch-specific quality documentation
Fast-tracked UK and international dispatch
Responsive researcher support
Our products are supplied to laboratories, universities, biotechnology organisations and research professionals requiring dependable specifications and consistent analytical quality.
Important Notice
For laboratory research and in-vitro use only.
This material is not intended for human or animal use, household use, food use or any form of personal application. It is supplied solely as a laboratory reference material for appropriately controlled research environments.
Product specifications, purity, molecular identity, salt form, storage conditions and analytical results should always be verified against the current batch-specific Certificate of Analysis and product documentation.
Reconstitution & Handling
- Recommended solvent Refer to COA / product notes
- Storage Store as directed in documentation
Important reconstitution notice:
Unless the product page, COA, or batch-specific documentation states otherwise, Peptiology peptide products should only be reconstituted using bacteriostatic water supplied by Peptiology.
Peptides are chemically sensitive materials, and reconstitution behaviour can be influenced by the exact diluent used. Different diluents may vary in pH, ionic strength, preservative content, buffering capacity, osmolarity, dissolved gases, and trace impurities. Even small differences in these factors can affect how a peptide dissolves and behaves in solution.
From a chemistry perspective, pH is especially important because it can alter the ionisation state of acidic and basic amino acid side chains. This can change the peptide’s net charge, hydrogen bonding, electrostatic interactions, and hydrophobic association. If the local pH environment is unsuitable, the peptide may show cloudiness, floating particles, clumping, gel-like behaviour, aggregation, or precipitation.
Bacteriostatic water, sterile water, saline, acetic acid water, and buffered solvent systems are not chemically identical. Substituting one for another may change the peptide’s solubility profile, particularly for longer sequences, hydrophobic peptides, modified peptides, or peptides with specific salt forms.
For consistency, reproducibility, and batch comparability, only the recommended diluent system should be used unless an alternative solvent is specifically stated in the product documentation.
Peptides are chemically sensitive materials, and reconstitution behaviour can be influenced by the exact diluent used. Different diluents may vary in pH, ionic strength, preservative content, buffering capacity, osmolarity, dissolved gases, and trace impurities. Even small differences in these factors can affect how a peptide dissolves and behaves in solution.
From a chemistry perspective, pH is especially important because it can alter the ionisation state of acidic and basic amino acid side chains. This can change the peptide’s net charge, hydrogen bonding, electrostatic interactions, and hydrophobic association. If the local pH environment is unsuitable, the peptide may show cloudiness, floating particles, clumping, gel-like behaviour, aggregation, or precipitation.
Bacteriostatic water, sterile water, saline, acetic acid water, and buffered solvent systems are not chemically identical. Substituting one for another may change the peptide’s solubility profile, particularly for longer sequences, hydrophobic peptides, modified peptides, or peptides with specific salt forms.
For consistency, reproducibility, and batch comparability, only the recommended diluent system should be used unless an alternative solvent is specifically stated in the product documentation.
- Do not substitute diluents unless specifically instructed.
- Only use Peptiology-supplied bacteriostatic water unless stated otherwise.
- Do not assume all peptides behave the same after reconstitution.
- Visible changes may be caused by diluent incompatibility, pH shift, ionic effects, concentration effects, or peptide-specific solubility behaviour.
- Peptiology cannot verify reconstitution compatibility where non-Peptiology diluents have been used.
For laboratory research use only.
Not for human or veterinary use.
Documentation
Batch verification
Live Certificate of Analysis
View the live batch-specific certificate, including purity, batch number, test date, reviewer details, and QR verification.
Specifications
- Categories Peptide Research, Peptides
Peptiology Research Intelligence
Scientific research profile
Illustrative amino-acid residue chain. Colours identify residue type; this is not an experimentally determined tertiary structure.
Molecular class
Formula
Molecular weight
Receptor / molecular target
Cellular signalling cascade
Amino-acid / molecular sequence
Research profile
Primary pathway
Study systems
Key finding
Evidence landscape
Areas of research
Research deep dive
Mechanistic interpretation
What experiments show
Important limitations
Extended scientific review
Molecular mechanism
Experimental models & readouts
Translational evidence
Open research questions
Published research & literature explorer
Research-use information only.
Mechanistic summaries describe published experimental findings and do not constitute dosing, diagnostic or clinical-use guidance. Where no validated receptor has been identified, the page says so rather than assigning a speculative target.
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