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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. 99.3% avg purity, HPLC & MS verified. Lyophilized powder in sealed glass vial. For laboratory research use only. Not for human consumption.
MADE TO ORDER — Expected delivery: ~3 weeks
Synthesized after your order is placed. We'll email you tracking details when it ships.
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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.
99.3% average HPLC purity, verified by independent third-party testing
Janoshik report published when available
24h dispatch, EU-wide shipping from €4.99
Independent lab verification for every batch
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 | 99.3% avg by HPLC |
| Form | Lyophilized powder |
| Sizes | 20mg |
Storage: Lyophilized: −20°C, away from light. Once reconstituted: 2–8°C, use within 4 weeks.
Quality: HPLC purity analysis, mass spec identity confirmation, endotoxin testing on every batch. COA ships with every order. 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?
Every batch is independently verified by Janoshik Analytical (100,000+ verifications/month), Eurofins Scientific, and Analytical Sciences International. We publish every Certificate of Analysis.
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 RO54451735, VAT-registered. SameDay for Romania, FanCourier for Central/Eastern EU, TCE Worldwide for the rest. 3–7 business days EU-wide.
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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