We report net peptide content, not just purity — so the milligrams you dose aren't padded with water and counter-ion. RP-HPLC purity and ESI-MS identity, on a lot-numbered COA.
Net peptide content, not just purity — RP-HPLC + ESI-MS, lot-numbered COA.
Net peptide content on every lot's COA.
Reading a Peptide HPLC Trace — A 5-Minute Field Guide for Bench Scientists. Read our briefing →
Reading a peptide HPLC trace — a field guide. Read →
On reading HPLC traces. Read →
Khavinson cartilage / connective-tissue bioregulator
Lyochem primary owner
This Lyochem page is the primary SEO owner for research labs, CROs, and method-development teams qualifying Cartalax as a documented research-standard lot. The page should answer whether the buyer can review HPLC purity, identity confirmation, lot continuity, stability handling, and assay-fit documentation before ordering.
Overview
Within the Khavinson short-peptide bioregulator framework, Cartalax is assigned the cartilage and connective-tissue role — the class hypothesis holding that brief tissue-specific peptides operate as endogenous regulators inside their target tissue, here acting on chondrocyte gene-expression programs and connective-tissue maintenance. That tissue assignment is what places Cartalax in research models of joint health, chondrocyte biology, and connective-tissue regeneration. Lyochem provides Cartalax as a lyophilized reference standard in a 20 mg vial at ≥99.0% HPLC. Consistent with the Khavinson series, no CAS registry is uniformly maintained across suppliers, so identity is anchored to sequence verification recorded on the batch COA alongside RP-HPLC purity and ESI-MS mass confirmation. Because the exact sequence can differ by source within the framework, buyers should regard Cartalax as a class designation and cross-check the COA sequence against their own reference protocol at batch receipt.
Applications & buyer fit
Khavinson short bioregulators — Admax, Cortagen, Cartalax, Cardiogen, Bronchogen, Crystagen, Prostamax, Vesugen — ship to research labs replicating Russian-school protocols or running comparative tissue-specific peptide-bioregulator studies. The published literature base for this class is concentrated in Russian-language sources; buyers should expect to consult that literature directly for protocol selection. Analytical-packet expectations are the same as any other lyophilised research peptide.
Academic Laboratories
Universities, medical schools, and government research institutes qualifying a reference standard for a method-development or in vivo workflow.
Every release ships with its own batch-specific CoA — identity, purity, and the analytical scope agreed at quote stage, tied to the exact lot you receive.
Review a representative batch CoA before you order, so you can confirm the packet matches what your method or sponsor audit needs.
Supplied strictly as a research reagent to research institutions — not a finished dosage form and not for human administration. Buyer qualification runs at the inquiry stage.
Specifications
Documentation available on request
Regulatory note
Khavinson bioregulator; CAS commonly not registered. Confirm sequence and identity per batch COA.
Selected literature
Frequently asked questions
Synthetic short peptides are typically isolated as acetate or trifluoroacetate salts and retain bound water, so the labelled fill mass is not all active peptide. For quantitative cell work, the net-peptide figure from the certificate, rather than gross vial weight, should drive the molar concentration you target. Reconstitute in isotonic saline near neutral pH, then correct the dilution using the stated salt form and moisture value. Skipping this correction can overstate the delivered dose by a meaningful fraction, which matters when comparing matrix-protein or cell-cycle readouts across independent Cartalax preparations.
Repeated freezing and thawing is the main in-house route to degradation for peptides of this size, so the goal is to expose each portion to a single thaw. After dissolving the lyophilizate, split it into single-use volumes of roughly 50 to 200 microliters, cap them, and store at minus twenty degrees. Draw one portion per experiment and discard the remainder instead of returning it to the freezer. The sealed 20 mg vial itself carries a two-year re-test interval, so lots held for recurring studies should be re-checked against that documented window.
Related peptides
4-mer
Khavinson bioregulator tetrapeptide (Ala-Glu-Asp-Leu, AEDL)
4-mer
Khavinson cortical bioregulator tetrapeptide (Ala-Glu-Asp-Pro, AEDP)