CJC-1295 (No DAC) Purity & COA: How PX1 Verifies Every Lot

At a glance: CJC-1295 (No DAC) purity and analytical testing

PX1 Research enforces strict analytical quality control on all growth hormone secretagogues. Every batch of CJC-1295 (No DAC) undergoes independent third-party testing to guarantee peptide purity exceeding 98.0% by RP-HPLC, exact molecular weight identification via ESI-MS, and bacterial endotoxin levels maintained below strict research thresholds.

When purchasing compounds for in vitro or animal models, investigators require lot-specific documentation rather than batch templates. PX1 publishes full, unedited chromatograms and mass spectra accessible via lot number on every shipment.

Researchers can buy CJC-1295 (No DAC) with verified COA directly from our inventory, with all orders placed before 3:00 PM EST qualifying for same-day dispatch from our domestic facilities in California and Arizona.

What is CJC-1295 (No DAC)? Biochemical profile and research context

CJC-1295 (No DAC), also recognized in scientific literature as Modified GRF 1-29, is a 29-amino-acid synthetic peptide analog of endogenous growth hormone-releasing hormone (GHRH). By substituting specific amino acids at positions 2, 8, 15, and 27 (specifically D-Ala2, Gln8, Ala15, and Leu27), the peptide achieves increased resistance to enzymatic cleavage by dipeptidyl peptidase-IV (DPP-IV) compared to native GHRH(1-29).

Unlike the Drug Affinity Complex (DAC) variant, which forms covalent bonds with circulating serum albumin to extend its half-life to several days, `cjc no dac` exhibits a short, physiological biological half-life (approximately 30 minutes in animal models). This shorter half-life permits researchers to simulate physiological, pulsatile growth hormone secretion patterns without causing sustained, non-physiologic elevation.

In preclinical settings, `cjc 1295` without DAC is studied as a long-acting growth-hormone-releasing hormone that sustains GH and downstream IGF-1 levels for tissue repair research. Because experimental results rely heavily on ligand receptor binding kinetics, analytical purity and precise peptide mass content are critical parameters for reproducible research. Explore our complete selection of growth factor analogs in our all-peptides catalog.

The PX1 analytical testing stack: How every lot is verified

To ensure that laboratory investigations yield accurate and reproducible data, PX1 Research subjects every batch of CJC-1295 (No DAC) to a comprehensive six-tier analytical verification framework. We do not rely on manufacturer self-reporting; every lot is independently validated by ISO 17025 accredited testing laboratories.

1. Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC): Quantifies chemical purity by separating the target peptide from synthesis byproducts, truncated sequences, and deamidation artifacts. Analysis is performed using C18 columns with gradient acetonitrile/water eluents containing 0.1% trifluoroacetic acid (TFA), monitored at a UV absorbance wavelength of 214 nm. PX1 requires a minimum purity threshold of 98.0%.

2. Electrospray Ionization Mass Spectrometry (ESI-MS): Confirms peptide identity by determining the exact molecular weight. CJC-1295 (No DAC) has a theoretical monoisotopic mass of 3367.97 Da. MS spectrum analysis verifies that the observed mass-to-charge ratios (m/z) match the predicted molecular structure without deletion peptides or unwanted chemical modifications.

3. Peptide Content Determination via Nitrogen Analysis / AAA: While HPLC confirms relative purity, Amino Acid Analysis (AAA) or total nitrogen determination measures actual peptide content versus residual moisture and counterions (such as acetate or TFA salts). This guarantees accurate gravimetric dosing during experiment formulation.

4. Endotoxin Testing (LAL Assay): Bacterial endotoxins (lipopolysaccharides) alter cellular responses in vitro and induce inflammatory cascades in vivo. PX1 utilizes a kinetic chromogenic Limulus Amebocyte Lysate (LAL) assay to confirm endotoxin levels remain strictly below 0.05 EU/mg.

5. Bioburden & Sterility Verification: Sealed vials undergo random sampling to verify aerobic microbial count and sterility post-lyophilization, ensuring no contamination during the automated vial filling process.

6. Retained Sample Archiving: Portions of every manufactured lot are stored at -80°C in our central repository, providing long-term reference material for post-market stability testing and audit verification. You can review our testing procedures across all compounds in our research library.

How to read a CJC-1295 (No DAC) Certificate of Analysis

Interpreting a Certificate of Analysis (COA) is an essential skill for principal investigators to ensure reagent integrity before beginning experimental protocols. A genuine COA from PX1 Research contains distinct, verifiable data sections that directly correlate with the lot number printed on your vial label.

First, match the Lot Number on the vial header with the COA document header. Verify that the analytical testing date is recent relative to the synthesis batch date. Second, examine the RP-HPLC chromatogram: look for a single sharp, symmetrical peak corresponding to CJC-1295 (No DAC). Check the integrated peak area table; the area percentage under the primary peak represents peptide purity and must equal or exceed 98.0%. Beware of baseline noise or broad shoulder peaks indicating degradation.

Third, review the Mass Spectrometry report. The primary m/z peaks (typically displaying [M+3H]3+ or [M+4H]4+ ion states) must calculate back precisely to the target molecular weight of 3367.97 Da. Finally, confirm that endotoxin levels are reported in EU/mg rather than marked as 'Pass' without numerical values. Complete testing protocols are detailed across our product catalog.

Verification matrix: PX1 Research vs. baseline market standards

Evaluating vendor standards requires clear analytical metrics. The comparison matrix below illustrates how PX1 Research criteria contrast with typical market practices for CJC-1295 (No DAC) supply.

Purity Verification: PX1 Research mandates third-party RP-HPLC exceeding 98.0% for every batch with full peak integration tables shown. Baseline suppliers frequently present internal or supplier-provided COAs with missing baseline integration.

Mass Identity Confirmation: PX1 Research includes full-spectrum ESI-MS detailing theoretical vs. observed mass per lot. Baseline suppliers often omit mass spec data or reuse identical spectrum images across different batches.

Endotoxin Quantification: PX1 Research conducts quantitative kinetic LAL testing on every lot (<0.05 EU/mg). Baseline suppliers rarely perform endotoxin assays or provide qualitative 'pass/fail' claims without laboratory data.

Lot Traceability & Storage: PX1 Research retains archived samples at -80°C for every batch with clear lot numbers on all vial labels. Baseline suppliers often sell unlabelled or batchless vials without long-term sample preservation.

Domestic Shipping Speed: PX1 Research offers same-day dispatch M-F prior to 3:00 PM EST from California and Arizona facilities. Baseline suppliers typically rely on dropshipping or extended transit times from overseas facilities.

Red flags when vetting CJC-1295 (No DAC) COAs and suppliers

The market for synthetic peptides includes varying levels of quality control. Researchers should identify key red flags on vendor documentation before committing research capital.

1. Reused or Generic COA Documents: Suppliers that display a single COA image on product pages without updating lot numbers between synthesis runs are presenting static marketing materials, not batch quality verification.

2. Cropped or Low-Resolution HPLC Data: A standard HPLC report displays axes for retention time (minutes) and absorption units (mAU), along with baseline integration lines. Cropped chromatograms often hide secondary peaks, solvent front impurities, or degradation products.

3. Missing Mass Spectrometry: HPLC measures compound purity but cannot confirm chemical identity. A sample of incorrect sequence or different molecular weight can show a single HPLC peak. ESI-MS verification is mandatory to confirm the molecular structure of `cjc-1295 (no dac) coa purity`.

4. Absence of Endotoxin Testing: For in vitro cell culture or preclinical animal research, unaccounted endotoxins yield false positive inflammatory cytokine readings. Never utilize research peptides that lack quantitative LAL endotoxin validation.

To review verified documentation across related secretagogues, inspect our Ipamorelin research peptide page or explore our bulk ordering options.

Co-administration research: Studying CJC-1295 (No DAC) alongside GHRPs

In neuroendocrine and cell signaling research, investigators frequently evaluate the synergistic mechanism of GHRH analogs when paired with Growth Hormone Secretagogue Receptor (GHSR) agonists. A common combination in literature is the `cjc ipamorelin` dual-receptor assay model.

CJC-1295 (No DAC) binds directly to the GHRH receptor on pituitary somatotrophes, activating the cAMP/PKA pathway to stimulate growth hormone gene expression and release. Conversely, ghrelin mimetics such as Ipamorelin bind to GHSR-1a, acting via the phospholipase C (PLC) pathway to inhibit somatostatin release and promote GH granule exocytosis.

When combined in vitro, these distinct signaling cascades demonstrate a synergistic amplification of GH release greater than the sum of either compound administered individually. Researchers studying sustained tissue repair mechanisms often utilize both compounds to evaluate downstream IGF-1 expression profiles. PX1 supplies both order 2 mg or 5 mg CJC-1295 (No DAC) vials and complementary growth hormone secretagogues for comparative studies.

Handling, reconstitution, and laboratory storage standards

Maintaining peptide stability post-delivery requires adherence to strict laboratory storage protocols. CJC-1295 (No DAC) is supplied as a lyophilized (freeze-dried) cake in sealed borosilicate glass vials under inert gas atmosphere.

Lyophilized Storage: Upon receipt, store un-reconstituted vials at -20°C for short-term projects or -80°C for long-term preservation. Protect vials from light exposure. Under these conditions, chemical stability is maintained for up to 24 months.

Reconstitution Protocols: Reconstitution should be performed using sterile Bacteriostatic Water (0.9% benzyl alcohol) or Sterile Normal Saline depending on application requirements. Allow the vial to reach room temperature prior to solvent injection. Direct the liquid stream against the inner glass wall rather than directly onto the lyophilized cake to prevent shear stress degradation. Gently swirl the vial until fully dissolved; never shake.

Reconstituted Storage: Once dissolved, store reconstituted solutions at 2°C to 8°C. Avoid repeated freeze-thaw cycles, which degrade the peptide chain. Reconstituted aliquots stored at 4°C should be utilized within 28 days.

Ordering CJC-1295 (No DAC) from PX1 Research

PX1 Research is dedicated to supporting academic, clinical, and private research institutions with reliable, high-purity peptides. When ordering CJC-1295 (No DAC) from PX1, your laboratory receives fully documented, domestically shipped reagents tailored for rigorous experimental standards.

What Ships: Every unit is packaged in heavy-wall borosilicate glass vials fitted with rubber stoppers and flip-off aluminum seals to maintain vacuum integrity. Vials are clearly labeled with lot numbers matching your downloadable COA.

Vial Sizes & Packaging: Available in standardized 2 mg and 5 mg lyophilized formulations, providing flexibility for pilot studies or high-throughput research protocols.

Dispatch & Delivery: Orders placed before 3:00 PM EST Monday through Friday are processed and shipped same-day from our dual distribution hubs in California and Arizona. Fast, tracked domestic transit ensures minimal temperature fluctuation during shipping.

Analytical Support: Every lot includes permanent online access to independent third-party HPLC, ESI-MS, and endotoxin reports. Our scientific support team is available to answer questions regarding lot analytics, reconstitution, or document verification.

To secure verified reagents for your lab, order 2 mg or 5 mg CJC-1295 (No DAC) vials directly from PX1 Research today.