CJC-1295 DAC vs CJC-1295 No-DAC

The albumin affinity complex is the central distinction: the DAC preparation includes it and the No-DAC preparation does not. The No-DAC entry describes substitutions at positions 2, 8, 15 and 27; DAC-associated albumin binding must not be assigned to that preparation.

A shared GHRH receptor pathway does not establish the same exposure profile. The No-DAC bibliography includes studies of other variants, so each paper must be matched to the material actually studied before interpreting its results.

The 2006 clinical publication examines the long-acting analog; the 2021 analytical study distinguishes variants through in vitro investigation. These are different questions and materials.

CJC-1295 DAC: CJC-1295 DAC is an analog of the 1-29 fragment of growth hormone-releasing hormone, with an attached maleimide-type albumin affinity complex. In research literature, it binds to the GHRH receptor and acts as an agonist of that pathway. It has been studied in models of prolonged exposure of the somatotropic axis in preclinical research.

CJC-1295 No-DAC: CJC-1295 No-DAC is a tetrasubstituted analog of the 1-29 fragment of growth hormone-releasing hormone, without the albumin affinity complex. In preclinical models, it binds to the GHRH receptor and acts as an agonist of that pathway in the anterior pituitary. It has been investigated in models of somatotropic axis signaling in rodent studies.

CJC-1295 DAC: The affinity group forms a covalent bond with serum albumin in in vitro studies, modifying the peptide's exposure profile. The molecular target remains the GHRH receptor, which is coupled to Gs protein.

CJC-1295 No-DAC: Substitutions at positions 2, 8, 15 and 27 reduce enzymatic degradation of the sequence in in vitro studies. Activation of the GHRH receptor increases cyclic AMP in cellular models.

A dash means that the catalog does not declare that field for the compound. If neither entry declares a field, the row is omitted. A label purity specification of ≥ 99 % is not an analytical result; results must come from the certificate for the relevant batch.

Reconstitution: Laboratory procedure: allow the closed vial to reach room temperature, disinfect the septum and slowly transfer the diluent against the inner wall of the vial. Do not shake; gently swirl the vial until fully dissolved. Record the volume, diluent and date in the batch log.

Storage: Sealed vial of lyophilized material: store at −20 °C, protected from light and moisture. Avoid repeated freeze-thaw cycles of reconstituted material; aliquot when the experimental design permits.

Protective equipment: Handle in a clean work area with a lab coat, nitrile gloves and eye protection. Dispose of vials, tips and sharps according to the laboratory waste procedure.

Reconstitution: Laboratory procedure: allow the closed vial to reach room temperature, disinfect the septum and slowly transfer the diluent against the inner wall of the vial. Do not shake; gently swirl the vial until fully dissolved. Record the volume, diluent and date in the batch log.

Storage: Sealed vial of lyophilized material: store at −20 °C, protected from light and moisture. Avoid repeated freeze-thaw cycles of reconstituted material; aliquot when the experimental design permits.

Protective equipment: Handle in a clean work area with a lab coat, nitrile gloves and eye protection. Dispose of vials, tips and sharps according to the laboratory waste procedure.

The bibliography brings together work on the analog with DAC and analytical studies that distinguish the two variants. PMID 34665524 includes CJC-1295 without DAC in in vitro research; it does not establish its exposure in humans. Findings for the variant with DAC do not carry over to this preparation.

Consult each product page for its current presentations, availability, batch documentation and price. This comparison does not freeze commercial information in the research text.

The compendium entries contain the extended definitions, research context and indexed bibliography for each compound. The comparison organizes declared information; it does not replace study-specific interpretation or batch identity evidence.