CJC-1295 without DAC is a modified 29-residue GHRH fragment, and confirming a lot's sequence and purity is the starting point for any research use of the material.
Reversed-phase HPLC
Reversed-phase HPLC separates the target peptide from truncated sequences and other synthesis-related impurities that can accumulate across a chain of this length, with the resulting figure read per understanding HPLC purity.
Mass spectrometry for identity
Because the no-DAC form and its stabilized sibling CJC-1295 (DAC) differ by a distinct chemical modification, mass spectrometry is essential to confirm which variant a given lot actually is, not just that it is "roughly the right size" — see HPLC vs. mass spectrometry.
Why this matters for a shorter-acting research tool
No-DAC CJC-1295's research value is tied to its comparatively short, pulsatile signaling window described in its mechanism of action — a degraded or misidentified lot could produce a signaling profile that looks nothing like the intended pulsatile pattern.
Documentation to expect
A lot-specific certificate of analysis with HPLC purity and mass-spec identity confirmation — see how to read a CoA.
Product page: CJC-1295 (No DAC) research vials.
Research Use Only. Supplied strictly for laboratory research and development — not for human or veterinary use, consumption, or any therapeutic or diagnostic purpose. This article is research education, not usage guidance.