- HPLC-assayed purity of ≥99%
- Certificate of analysis tied to your lot number
- Tracked EU delivery, dispatched the next working day
Cortexin
Complex of low-molecular-weight cortical polypeptides in 10 mg lyophilised vials
In stock2 formats available
€63Range €63 – €480
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Ask about this listing or request its COA- FormLyophilized powder, sealed glass vial with flip-off seal
- Research areasNeurotrophic signalling, neuronal survival under stress, synaptic markers, cognition models
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
Cortexin is not one defined molecule but a complex of many polypeptides.
- Form
- Lyophilized powder, sealed glass vial with flip-off seal
- Storage
- 2–8 °C or below, protected from light and moisture
- Available sizes
- 10 mg · 10 mg · 10 vials
For research use only. Not for human consumption.
Cortexin is not one defined molecule but a complex of many polypeptides. It is made from the cerebral cortex of mammals and then fractionated, so that the final product consists of water-soluble peptides below roughly 10 kilodaltons, accompanied by free amino acids and trace minerals. It belongs to the same group of peptide products from Russia and Eastern Europe as Cerebrolysin, and neuropeptide research frequently discusses the two in the same breath.
As a mixture, it is characterised by fractions and activity, not by a sequence. Researchers investigate cortical peptide complexes for their influence on neurotrophic signalling, on neuron survival during ischaemic or excitotoxic stress, on the expression of synaptic markers and on electrophysiological measures in cultured neurons. A large part of the published work is in Russian, and replication in the West is scarce, so characterising the material is itself still a research question.
Specifications
Supply & purity
- Form
- Lyophilized powder, sealed glass vial with flip-off seal
- Available sizes
- 10 mg single vial; 10 mg × 10 vial pack
- Solubility
- Readily soluble in sterile or bacteriostatic water
Handling & storage
- Storage (lyophilized)
- 2–8 °C or below, protected from light and moisture
- Storage (reconstituted)
- 2–8 °C, protected from light; use within a short study window
Additional detail
- Product type
- Polypeptide complex (mixture), not a single-sequence peptide
- Composition
- Water-soluble cortical polypeptide fractions with free amino acids and trace elements
- Molecular weight range
- Peptide fractions below approximately 10 kDa
- Source material
- Mammalian cerebral cortex tissue, fractionated and purified
- Compound class
- Tissue-derived neuropeptide preparation
- Comparable preparations
- Cerebrolysin and other cortical or pineal polypeptide complexes
- Analytical documentation
- Identity and fraction-profile testing per lot; COA available
- Research areas
- Neurotrophic signalling, neuronal survival under stress, synaptic markers, cognition models
Questions about Cortexin
Is Cortexin one peptide?
No — it is a polypeptide complex: a fractionated mixture of water-soluble peptides under about 10 kDa plus free amino acids and trace elements. No single CAS number, formula or sequence applies, and analytical results are given as a fraction profile.
How is it different from Cerebrolysin?
Both are tissue-derived neuropeptide products built on low-molecular-weight fractions, yet their source tissue, production and presentation differ. Cerebrolysin comes as a solution in ampoules, whereas Cortexin is a lyophilised powder you reconstitute in the lab.
Which documents do you supply?
Each lot is tested for identity and for its fraction profile, using methods appropriate to a mixture of peptides, and the certificate of analysis can be requested. A purity value based on a single HPLC peak wouldn't make sense for a mixture, so the documents describe what it contains and how consistent it is instead.
How do I store Cortexin?
Keep unopened vials in the fridge (2–8 °C) or colder, protected from light and moisture. After dissolving, keep it chilled and use it soon — a mix of many peptides stays stable in solution for less time than a single, purified peptide does.
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