This page compares what is documented about CJC-1295 (no DAC) and CJC-1295 (with DAC), rather than ranking them by effect. What each molecule is, the sizes and prices actually carried, what the certificate covers, and how the two differ on the bench. Everything here is research-use-only material and we do not publish outcome, dosing or administration content for any compound in the catalogue.
What is CJC-1295 (no DAC) and what is CJC-1295 (with DAC)?
CJC-1295 (no DAC). CJC-1295 without DAC (mod GRF 1-29) carries four substitutions that resist enzymatic cleavage — the minimal stable GHRH fragment the literature keeps returning to.
CJC-1295 (with DAC). CJC-1295 with DAC carries a drug affinity complex modification that the no-DAC version does not. The two are different materials sold under nearly the same name, and the modification is the entire reason to specify one.
How do CJC-1295 (no DAC) and CJC-1295 (with DAC) compare on price and size?
| CJC-1295 (no DAC) | CJC-1295 (with DAC) | |
|---|---|---|
| Sizes carried | 5 mg, 10 mg | 5 mg |
| From | $34.00 | $130.00 |
| Best price per unit | $6.80 / mg | $26.00 / mg |
| Availability | Backordered — waitlist | Backordered — waitlist |
| Certificate | Lot certificate on the product page | Lot certificate on the product page |
| Molecular formula | C152H252N44O42 | C165H269N47O46 |
| Molar mass | 3,367.9 g/mol | 3,647.2 g/mol |
| Source | — | PubChem CID 91971820 |
| Research area | GHRH analogue research | growth hormone releasing hormone analogues |
At their best sizes CJC-1295 (no DAC) works out at $6.80 per mg against $26.00 for CJC-1295 (with DAC) — 3.8 times more for the mg. Vial prices start at $34.00 and $130.00 respectively, which is the number most people compare and the one that says least, because the two are not sold in the same sizes. Full sizes, tier pricing and the lot certificate sit on the CJC-1295 (no DAC) page and the CJC-1295 (with DAC) page.
What is each one studied for?
What the published literature investigates, which is a different question from what either will do, and the only one of the two a supplier can answer.
CJC-1295 (no DAC) is studied in ghrh analogue research. GHRH analogue research continues steadily, with the modified GRF(1-29) backbone the field's common denominator.
CJC-1295 (with DAC) is studied in growth hormone releasing hormone analogues research. Half-life extension chemistry is a mature field, and affinity-complex approaches are a standard textbook example of it.
Studied in the same area does not make two compounds interchangeable, and the research library holds the per-compound documentation.
CJC 1295 With DAC vs CJC-1295 (no DAC): how they differ on the bench
CJC-1295 (with DAC). When a catalogue carries both, the label is doing load-bearing work. Ours states which one is in the vial and the certificate confirms it.
CJC-1295 (no DAC). The no-DAC and with-DAC forms are different molecules with different masses — the exact thing a proper LC-MS identity check settles on arrival.
On naming, because the two are written several ways and the difference is not always obvious: CJC-1295 (with DAC) is also written cjc 1295 with dac. They refer to the same materials described here, and the certificate for a lot uses the name on this page. The comparison itself is usually typed CJC-1295 (no DAC) vs CJC 1295 With DAC.
What actually differs between CJC-1295 (with DAC) and CJC-1295 (no DAC)
Worth doing the arithmetic before comparing sizes: CJC-1295 (with DAC) is 3,647.2 g/mol and CJC-1295 (no DAC) is 3,367.9 g/mol, a factor of 1.1. A milligram of CJC-1295 (no DAC) therefore contains roughly 1.1 times as many molecules as a milligram of CJC-1295 (with DAC), so two vials of the same labelled mass hold quite different amounts of substance. Equal milligrams are not equal moles, which is what the molarity calculator exists to convert, and it is the reason a price-per-milligram comparison and a price-per-mole comparison can point at different vials.
Both are released against a certificate reporting identity, purity by the stated method and net peptide content, readable before anything is bought.
Which is better, CJC 1295 With DAC or CJC-1295 (no DAC)?
Neither CJC 1295 With DAC nor CJC-1295 (no DAC) is ranked against the other here, and the refusal is deliberate. Better, safer and stronger are questions about effects in a living system, and we sell neither compound for use in one — why none of these pages ranks two compounds sets out the reasoning in full.
What it does instead, for these two:
- CJC-1295 (no DAC) is the cheaper of the two per mg, at $6.80 against $26.00.
- CJC-1295 (with DAC) is the heavier molecule by a factor of 1.1, so equal milligrams are not equal moles.
- CJC-1295 (no DAC) is carried in 2 sizes and CJC-1295 (with DAC) in 1, and each lot carries its own certificate.
Every one of those is checkable before you buy.
Common questions
What is the difference between CJC-1295 (with DAC) and CJC-1295 (no DAC)?
Different molecules before anything else: CJC-1295 (with DAC) is C165H269N47O46 and CJC-1295 (no DAC) is C152H252N44O42. CJC-1295 with DAC carries a drug affinity complex modification that the no-DAC version does not. The two are different materials sold under nearly the same name, and the modification is the entire reason to specify one. CJC-1295 without DAC (mod GRF 1-29) carries four substitutions that resist enzymatic cleavage — the minimal stable GHRH fragment the literature keeps returning to.
Which one should I choose?
CJC-1295 (no DAC) is carried in 5 mg, 10 mg and CJC-1295 (with DAC) in 5 mg, each lot with its own certificate. Which of those suits the work is yours to decide; everything here is research-use-only rather than guidance for use in a human or an animal.
Do both CJC-1295 (no DAC) and CJC-1295 (with DAC) come with a certificate of analysis?
Neither is in stock at the moment, so in each case the certificate is the one attached to the lot that arrives. A certificate belongs to a lot, not to a product. It is linked from the product page, and reports identity, purity by the stated method, and net peptide content for the material actually in that lot.
Which is cheaper, CJC-1295 (with DAC) or CJC-1295 (no DAC)?
Per mg, CJC-1295 (no DAC) at $6.80 against $26.00, taking each one's best size. By vial they start at $34.00 for CJC-1295 (no DAC) and $130.00 for CJC-1295 (with DAC), which is the comparison most people make and the one that says least, because the two are not sold in the same sizes.
Is a milligram of CJC-1295 (no DAC) the same as a milligram of CJC-1295 (with DAC)?
By mass yes, by amount of substance no. CJC-1295 (with DAC) is 3,647.2 g/mol and CJC-1295 (no DAC) is 3,367.9 g/mol, a factor of 1.1, so a milligram of CJC-1295 (no DAC) holds roughly 1.1 times as many molecules. Two vials with the same number on the label are not the same amount of substance, which is what the molarity calculator converts.
FOR LABORATORY AND IN-VITRO RESEARCH USE ONLY. NOT FOR HUMAN OR ANIMAL CONSUMPTION. NOT FOR PERSONAL, MEDICAL, DIAGNOSTIC, THERAPEUTIC, OR RECREATIONAL USE.