Research Background & Mechanism
CJC-1295 with DAC (Drug Affinity Complex) is a long-acting GHRH analog with a molecular weight of 3647.8 Da. Understanding its mechanism — GHRH analog with a drug-affinity complex that extends its circulating half-life in research models — matters because it defines which experimental models the peptide is suited for and which controls a lab should run.
For researchers designing a protocol, the practical takeaway is to match the peptide to a specific, testable hypothesis rather than to a broad research area. CJC-1295 with DAC (Drug Affinity Complex) is most consistently cited in work on GH axis signalling, half-life extension, sustained-release modelling, so that is where the published literature will give you the most guidance.
Purity & Quality Standards
The baseline specification for CJC-1295 DAC should be ≥98% by HPLC with MS confirmation. High-performance liquid chromatography reports the purity percentage, while mass spectrometry confirms that the material is actually CJC-1295 with DAC (Drug Affinity Complex) at the expected molecular weight (3647.8 Da) — the two checks are complementary, not redundant.
Beyond purity, verify the salt form and any residue from synthesis (such as TFA removal) on the certificate of analysis. These details are easy to overlook but can shift results in sensitive assays, so they are part of any serious supplier-verification checklist.
Storage & Handling
The correct storage condition for CJC-1295 DAC is lyophilized at -20°C, stable 12–24 months. Lyophilized peptide held at this temperature keeps its stated purity far longer than material left at ambient temperature, and the difference is measurable over months of routine use.
Once reconstituted, stability drops quickly, so laboratories should refrigerate solutions and use them within the window defined by their own protocol. Plan reconstitution just before use rather than in advance.
Sourcing & Supplier Verification
A reliable CJC-1295 DAC supplier should provide a batch-specific COA showing HPLC ≥98% and an MS spectrum at 3647.8 Da, and should be transparent about synthesis capacity and lead times. Suppliers that cannot produce these documents are the primary source of sub-standard or mis-identified material.
For bulk research purchasing, request the COA before committing to a large order, and confirm the peptide is sold strictly for laboratory and research use. A supplier that markets research peptides with therapeutic language is a red flag for compliance.
Frequently Asked Questions
Q1: What does the DAC modification do?
The Drug Affinity Complex binds serum albumin to extend the peptide’s circulating half-life, which is the key experimental difference versus the no-DAC form.
Q2: CJC-1295 DAC vs no DAC — which should my lab order?
Choose DAC for sustained-release study designs and no DAC for pulsatile signalling models; the two are not interchangeable in experimental terms.
Q3: How should CJC-1295 DAC be stored?
Lyophilized at -20°C for long-term stability; reconstituted material should be refrigerated and used promptly.
Important: All products are sold strictly for laboratory and research purposes only — not for human or veterinary use. No medical, therapeutic, or dosing guidance is provided or implied. Researchers are responsible for compliance with their institution and local regulations.
📞 WhatsApp: +852 4419 8097 — batch-specific COA documents, bulk research pricing, and current stock for your lab.