Peptides

CJC-1295 (with or without DAC)

Distinguishes DAC from no-DAC — the substitution buyers never catch.

CJC-1295 with DAC and without DAC are sold interchangeably and priced very differently. The mass difference is decisive, so this test tells you which one is actually in the vial.

What this test tells you

Identity — LC-MS

Confirms the molecule is what the label claims, by measuring the mass of the eluting ions. Catches substitution and the wrong compound entirely.

Content — quantitative HPLC

How much is actually in the vial, compared against the declared strength and reported as a percentage of claim.

Purity — HPLC-UV

Area percent of the main peak, with the chromatogram attached so the figure can be checked rather than trusted.

A verifiable report

A report ID and unique key that resolve to a public record. Anything that does not resolve is not a genuine report.

Parameters

Target compound	CJC-1295 (DAC and no-DAC / MOD GRF 1-29)
Testing method	RP-HPLC-UV 214 nm + ESI-LC-MS
Result format	mg per vial, purity %, identity confirmed
Minimum sample	1 whole unopened vial, or 20 mg raw API

Frequently asked questions

How do you tell them apart?

Molecular mass. DAC adds a maleimidopropionic acid linker, so the masses differ clearly.

Additional services

Add any of these to the same vial, on the same certificate.

Optional add-ons

Raw data packageChromatogram and mass spectrum as open files, not just PDF.
+$18
pH measurementMeasured on reconstituted sample, reported to 0.01.
+$27
Fentanyl presence screenTargeted LC-MS screen. Reported present / not detected.
+$55
Variance testingTwo independent injections from the same vial, reported separately.
+$55
Additional report copyA second certificate issued under a different origin label.
+$37
Heavy metals (ICP-MS)As, Cd, Pb, Hg. Reported per element, <0.01 ppm.
+$125
Endotoxin (LAL)Kinetic LAL, reported in EU/mg. Requires a second vial of the same compound.
+$210
CHNS mass reportElemental composition, independent of the HPLC assay.
+$105
LC-MS contamination screenScreens for unrelated peptides and small molecules.
+$150
Sterility (TAMC + TYMC)Compendial sterility. 14-day incubation. Requires a second vial.
+$179
TFA content analysisResidual trifluoroacetic acid, reported as % w/w.
+$210