Source comparison
CJC-1295 Purity Verification: Analytical Method Comparison
HPLC (High-Performance Liquid Chromatography) Percentage of sample that is intact CJC-1295 versus synthesis impurities ≥98% for research use; 95–98% acceptable for preliminary work Does not confirm molecular identity. Only separates components Gold standard fo
This comparison does not assign a generated winner or score.
- HPLC (High-Performance Liquid Chromatography)
- Percentage of sample that is intact CJC-1295 versus synthesis impurities
- ≥98% for research use; 95–98% acceptable for preliminary work
- Does not confirm molecular identity. Only separates components
- Gold standard for purity quantification; required for reproducible dosing
- Mass Spectrometry (MS)
- Molecular weight to confirm peptide identity
- Observed MW 3647.28 ± 2 Da
- Does not quantify impurities. Only confirms the target molecule is present
- Essential confirmation that the peptide is CJC-1295 and not a structural analogue
- Endotoxin Testing (LAL Assay)
- Bacterial endotoxin contamination from synthesis
- <5 EU/mg for in vivo research
- Does not measure peptide purity. Only microbial contamination
- Critical for any peptide used in live organisms; not required for in vitro work
- Amino Acid Analysis (AAA)
- Confirms amino acid composition and ratios
- Ratios must match CJC-1295 sequence
- Time-consuming and expensive; not routinely performed unless identity is questioned
- Used when MS results are ambiguous or contamination with a similar peptide is suspected