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Research-grade compound. Laboratory use only. Not intended for human or animal use, ingestion, or injection. No medical claims are made or implied.

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Research-grade Chonluten. ≥98% supplier batch specification; selected lots independently tested (99.3% avg across published reports). Lyophilized powder in sealed glass vial. For laboratory research use only. Not for human consumption.
| Quantity | Price Each | Total | Savings |
|---|---|---|---|
| 1 unit | €32.99 | €32.99 | -- |
| 3+ | €31.34 | €94.02 | 5% off |
| 5+Most Popular | €29.69 | €148.46 | 10% off |
| 10+ | €28.04 | €280.41 | 15% off |
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Important Notice
This product is intended for laboratory and research use only. Not for human or veterinary use. By purchasing, you confirm this product will be used exclusively for in-vitro research purposes.
Reconstitution Required
This peptide ships lyophilized (dry powder) and requires bacteriostatic water to reconstitute before use. BAC water is sold separately.
99.3% average HPLC purity, verified by independent third-party testing
Janoshik report published when available
24h dispatch, EU-wide shipping from €4.99
Supplier batch specification on every product; independent Janoshik report on selected lots
Chonluten is a tripeptide (Glu-Asp-Leu) from the Khavinson bioregulatory series targeting bronchial and pulmonary tissue — the same tissue target as Bronchogen, but a different sequence. That's not a coincidence. In the Khavinson framework, different peptide sequences targeting the same organ are proposed to interact with different gene promoter sites, producing distinct regulatory profiles within the same tissue. So Chonluten (Glu-Asp-Leu) and Bronchogen (Ala-Glu-Asp) are complementary tools for the same research tissue, not duplicates.
The distinction between Chonluten and Bronchogen is sequence-dependent, and what downstream differences this produces in pulmonary models is one of the specific comparative questions within the Khavinson series. Published Khavinson research on Chonluten examines lung epithelial cell homeostasis, bronchial mucosa gene expression, and age-related changes in respiratory tissue biology. As with the broader series, most literature originates from the Saint Petersburg Institute of Bioregulation and Gerontology.
| Sequence | Glu-Asp-Leu |
|---|---|
| Molecular Weight | ~350 Da (tripeptide) |
| Purity | ≥98% (supplier batch spec; 99.3% avg across independently tested lots) |
| Form | Lyophilized powder |
| Sizes | 20mg |
Storage: Lyophilized: −20°C, away from light. Once reconstituted: 2–8°C, use within 4 weeks.
Quality: Every product ships to a ≥98% supplier batch specification; selected lots are independently tested by Janoshik Analytical (HPLC purity analysis and mass spectrometry identity confirmation; 99.3% average purity across published reports), searchable by batch code at certapeptides.com/verify. EU-based QC under CERTALAB S.R.L.
The choice depends on what you're studying. In the Khavinson framework, the different sequences (Glu-Asp-Leu versus Ala-Glu-Asp) are proposed to interact with different promoter sites in lung tissue, modulating distinct gene programs. If you want to compare the two sequences in the same model, study both. If you have specific endpoint data from published Khavinson research pointing to one compound for a particular marker, use that one. If you have no prior data to guide selection, Bronchogen has slightly more published literature.
Age-related bronchial epithelial decline, respiratory tissue homeostasis, and mucosa gene expression markers are the primary applications. Both Bronchogen and Chonluten have been studied in aging models examining changes in lung-specific protein synthesis and tissue morphology. The data set is largely from the Khavinson Institute, with some English-language publications in gerontology journals.
For research purposes only. Not for human consumption.
Researcher Confidence
Who actually tests this?
Selected lots are independently verified by Janoshik Analytical (Czech Republic) and published on the Janoshik public portal. Other lots ship with the supplier's batch specification. See /coa for the published wall.
View COAs →What if I get the wrong batch?
Every bottle label carries a lot number that maps to a specific Certificate of Analysis. If a batch fails spec, we don't ship it — full stop.
View COAs →Where does it ship from?
Romania (EU). We are CERTALAB SRL, CUI 54169956, VAT-registered. Sameday for Romania, TCE Worldwide for all cross-border EU and non-EU markets (UK, Switzerland, Norway, Iceland, Israel, Serbia). Delivery 1–14 business days depending on destination — exact window shown at checkout.
Shipping details →What if there's a problem?
You have a 14-day withdrawal right under OUG 34/2014 (Romanian/EU consumer law), with ANPC/ODR escalation available. Contact us at support@certapeptides.com.
Returns policy →This product is intended for scientific research and development purposes only. It is a chemical substance that shall not be used as a drug, medicine, active substance, or ingredient in any product intended for human or animal consumption. Researchers must handle this compound in accordance with their institutional biosafety guidelines. Use only in properly equipped laboratory settings with appropriate personal protective equipment.
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3mlRESEARCHERS ALSO STUDIEDPack of 10 sterile disposable 3ml Luer lock syringes with graduated markings. Ideal for drawing bacteriostatic water from vials during reconstitution of lyophilized peptides. For laboratory research use only.