Peptide
Reference library
Educational peptide reference — research use only.
Research & educational use only
For laboratory and educational research only. Not for human or veterinary consumption. This is not medical advice. Always follow applicable laws and consult qualified professionals.
The calculator performs unit math for research reference. It must not be used to plan or guide dosing in humans or animals. Verify all figures independently in your lab protocol.
CJC-1295 (No DAC)
A GHRH analog without DAC studied in growth-hormone secretion research.
- Half-life (approx.)
- ~30 min (approx., IV); ~2 h subQ
- Diluent
- Bacteriostatic water (0.9% benzyl alcohol)
- Common vials
- 2, 5 mg
Half-life figures are literature approximations for educational reference — not pharmacokinetic advice.
Overview
CJC-1295 without DAC (Mod GRF 1-29) is a truncated GHRH analog that stimulates pituitary GH release with a shorter half-life than the DAC version. Frequently paired with GHRP-class peptides in research protocols examining synergistic GH secretion. Mod GRF 1-29 is the standard short-acting GHRH analog in GH stimulation research.
Structure & identity
GHRH(1-29) Mod GRF — 29 amino acids
- Sequence / structure
- GHRH(1-29) Mod GRF — 29 amino acids
Mechanism
Truncated GHRH analog stimulates pulsatile GH release from pituitary without albumin binding. Pulsatile GH release without albumin anchoring suits timed sampling protocols.
Studies & clinical programs
GH stimulation tests
Published research models
- Peer-reviewed literature documents endpoints under GH stimulation tests experimental designs.
Combination with GHRP peptides
Published research models
- Peer-reviewed literature documents endpoints under Combination with GHRP peptides experimental designs.
Research models in literature
- GH stimulation tests
- Combination with GHRP peptides
Literature highlights
- Truncated GHRH analog stimulates pituitary GH release in stimulation-test protocols.
- Frequently paired with GHRP-class peptides in dual-axis research models.
- Short plasma half-life relative to DAC form — timing-sensitive sampling in PK work.
Combination research notes
Standard partner: ipamorelin (see CJC+IPA mix page).
Key targets & pathways
Research areas
Routes in research literature
Also known as
Stability & storage phases
| Phase | Condition | Guidance |
|---|---|---|
| Lyophilized | Sealed vial, refrigerated (2–8 °C) | Intact lyophilized cake or powder is typically stable for months to years per published stability data; protect from moisture, light, and repeated freeze-thaw of the dry vial. |
| Reconstituted | Bacteriostatic water (0.9% benzyl alcohol), refrigerated | Most aqueous peptide solutions remain usable for approximately 2–4 weeks refrigerated; verify published stability data and label with reconstitution date. |
| Working aliquots | Pre-drawn syringes or microtubes, frozen (−20 °C) | Aliquot promptly after mixing to limit freeze-thaw cycles on the main vial; thaw once and use to reduce protease-mediated degradation. |
Stability windows are formulation-dependent — verify published data and your lab SOP.
Reconstitution reference table
| Vial (mg) | Diluent (mL) | mcg/mL | Units @ 100 mcg | Units @ 250 mcg | Units @ 500 mcg |
|---|---|---|---|---|---|
| 2 | 2 | 1000.0 | 10 | 25 | 50 |
| 5 | 2 | 2500.0 | 4 | 10 | 20 |
U-100 insulin syringe scale (100 units = 1 mL). Illustrative only — not dosing guidance.
Reconstitution steps
- Allow vial to reach room temperature (15–30 min)
- Swab rubber stopper with alcohol prep pad
- Draw calculated bacteriostatic water into syringe
- Inject diluent slowly down vial wall — do not spray directly onto cake
- Gently swirl until fully dissolved — do not shake vigorously
- Label with date, concentration, and diluent volume
- Refrigerate and use within your lab stability window
Often reconstituted with 1–2 mL bacteriostatic water.
Laboratory record checklist
- Compound identity recorded in lab notebook (name, lot, preparation date)
- Analytical identity cross-checked against published sequence or structure
- Potency or concentration documented from analytical certificate when available
- Purity or HPLC data filed when provided with research material
- Appearance noted: intact lyophilized cake or uniform powder
- Sterility / endotoxin report archived when available
- Storage temperature applied immediately per published stability guidance