Catalogue / CJC-1295 with DAC
CJC-1295 with DAC
Also written as DAC:GRF, Drug Affinity Complex GRF.
A modified GRF analogue carrying a maleimidoproprionic acid linker that binds covalently to serum albumin, which is what the DAC designation means and what extends the half-life.
| Class | Growth hormone secretagogues |
| Determination | Peptide analysis, specialist compound |
| Price | 590 USD |
CJC-1295 with DAC is identified against a certified reference standard rather than against a published mass, because commercially supplied material varies in composition between suppliers. Purity is reported separately by reversed-phase chromatography at 214 nm and describes the chromatographable fraction only.
| The distinction between this compound and the version without DAC is the linker, roughly 300 daltons. Material sold as DAC that lacks the linker is the single most common substitution in this class. |
| The maleimide linker is hydrolysis-sensitive. An opened maleimide ring adds eighteen daltons and destroys the albumin binding that the product is sold for. |
| No mass figure is published here because the exact conjugate composition varies between suppliers. Identity is established against a certified reference standard at the time of analysis. |
Every compound fails in its own way. A generic peptide method applied without regard to these specifics produces a number that looks like a result and is not one.
Short synthetic peptides, most carrying D-amino acids or unnatural residues that make them resistant to serum peptidases and invisible to sequence-only reasoning.
LC-MS identity against a certified reference standard, purity by RP-HPLC at 214 nm. D-isomers are not resolved by a conventional C18 column and are not claimed to be.
Where the delivered milligram figure matters rather than the percentage, net peptide content by combustion analysis and water by Karl Fischer are added, and the certificate carries a closed mass balance instead of a single purity number.
| LC-MS identity | Measured mass |
| RP-HPLC purity | Area at 214 nm |
| Net peptide content | Milligrams |
| Water content | Karl Fischer |
| Counter-ion | Ion chromatography |
| Bacterial endotoxins | USP <85> |
What is the molecular weight of CJC-1295 with DAC?
No molecular weight is published for CJC-1295 with DAC on this page, because the composition of commercially supplied material varies between suppliers and an unverified figure on an analytical site is worse than an absent one. Identity is established against a certified reference standard at the time of analysis.
How is CJC-1295 with DAC tested for purity and identity?
LC-MS identity against a certified reference standard, purity by RP-HPLC at 214 nm. D-isomers are not resolved by a conventional C18 column and are not claimed to be. Purity describes the chromatographable fraction only and is not the same quantity as the peptide mass delivered per vial.
What goes wrong when CJC-1295 with DAC is analysed?
The distinction between this compound and the version without DAC is the linker, roughly 300 daltons. Material sold as DAC that lacks the linker is the single most common substitution in this class.
What does CJC-1295 with DAC analysis cost at ANALYTON?
Peptide analysis, specialist compound is priced at 590 US dollars, covering the determinations described on this page. Content, safety and elemental determinations are ordered alongside and are priced separately on the price list.
Other compounds in this class
Updated 2026-09-01. Masses computed at build, not transcribed.