CJC-1295 (no DAC) / Modified GRF 1-29 Testing Services
CJC-1295 without DAC (also called Modified GRF 1-29) is a GHRH analog with a much shorter half-life than the DAC version. It produces pulsatile GH release more closely matching natural physiology and is often paired with a GHRP.
Research Applications
Common research areas for CJC-1295 (no DAC) / Modified GRF 1-29
- Growth hormone research
- Pulsatile GH release studies
- Pituitary function studies
- Combination peptide research
Peptide Information
Molecular details and sample requirements
Sequence / Structure:
Tyr-D-Ala-Asp-Ala-Ile-Phe-Thr-Gln-Ser-Tyr-Arg-Lys-Val-Leu-Ala-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-NH2
Molecular Weight
3367.93 g/mol
Formula
C152H252N44O42
Recommended Purity
≥95%
Sample Size
0.5-1 mg lyophilized
Our CJC-1295 (no DAC) / Modified GRF 1-29 Testing Services
Comprehensive analytical testing to ensure CJC-1295 (no DAC) / Modified GRF 1-29 quality and purity
Purity Testing
HPLC analysis to verify CJC-1295 (no DAC) / Modified GRF 1-29 purity levels
Identity Verification
Mass spectrometry to confirm molecular identity
Third-Party Verification
Independent COA verification for CJC-1295 (no DAC) / Modified GRF 1-29
Certificate of Analysis
Official US laboratory documentation
Ready to test your peptides?
Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
- validated analytical methods, independent of any supplier
- 9-11 business day standard turnaround
- Traceable COA with chromatograms and method parameters
CJC-1295 (no DAC) / Modified GRF 1-29 Testing Methodology
Our analytical workflow for CJC-1295 (no DAC) / Modified GRF 1-29 follows USP <1225> guidance for validated chromatographic methods. Each lot is processed by a credentialed analyst with documented chain of custody.
Step 1
Sample intake & chain of custody
Your CJC-1295 (no DAC) / Modified GRF 1-29 sample (0.5-1 mg lyophilized) is logged at our Florida lab with a unique ID, photographed, and stored at -20 °C until analysis.
Step 2
Reverse-phase HPLC purity
CJC-1295 (no DAC) / Modified GRF 1-29 is dissolved in mobile phase and run on a C18 column with a water/acetonitrile gradient containing 0.1% TFA. UV detection at 214 nm quantifies the main peak and any related impurities.
Step 3
LC-MS identity confirmation
An aliquot is analyzed by liquid chromatography-mass spectrometry. The observed monoisotopic mass is compared against the theoretical molecular weight (3367.93 g/mol) for CJC-1295 (no DAC) / Modified GRF 1-29 to confirm identity.
Step 4
Impurity profiling & reporting
Related substances, truncations, and oxidation products are quantified. Findings are compiled into a signed Certificate of Analysis with chromatograms, mass spectra, and analyst interpretation.
CJC-1295 (no DAC) / Modified GRF 1-29 Purity Notes
Recommended research-grade purity for CJC-1295 (no DAC) / Modified GRF 1-29 is ≥95%. Lot-to-lot variation is common with solid-phase synthesis, so independent verification matters.
Common impurities to watch
- Truncated sequences from incomplete coupling
- Deletion peptides missing one or more residues
- Oxidation of methionine, tryptophan, or cysteine
- Residual TFA, acetate, or solvent counter-ions
- Aggregates and dimers from improper storage
What our COA confirms
- Main peak purity by HPLC area %
- Observed vs theoretical mass (3367.93 g/mol)
- Named impurities ≥ 0.1% area
- Net peptide content where applicable
- Method, column, and instrument metadata
CJC-1295 (no DAC) / Modified GRF 1-29 Handling, Storage & Safety
Guidance below is for laboratory and research personnel only. CJC-1295 (no DAC) / Modified GRF 1-29 is supplied for research use and is not intended for human or veterinary use.
Storage
Store lyophilized CJC-1295 (no DAC) / Modified GRF 1-29 at -20 °C, protected from light and moisture. After reconstitution, aliquot and store at -80 °C; avoid repeated freeze-thaw cycles.
Reconstitution
Reconstitute in bacteriostatic or sterile water in a clean environment. Allow vials to reach room temperature before opening to prevent moisture condensation on the powder.
PPE & shipping
Handle with gloves, lab coat, and eye protection. Ship samples to ACS overnight on dry ice or cold packs in a rigid, leak-proof container with a packing slip referencing your quote.
This page is informational and does not constitute medical advice. Consult your institution's safety officer and SDS before working with CJC-1295 (no DAC) / Modified GRF 1-29.
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