Certificates of Analysis
At Pulse Research, safety and transparency are at the core of everything we do. Every product we offer is verified through third-party testing for identity, mass, and purity to help ensure quality and consistency. As part of our ongoing commitment to raising our standards, we are expanding our testing protocols to include sterility and endotoxin testing across our product line. We believe in continually investing in higher levels of quality assurance so our customers can have confidence in the products they receive.
What We Test For
Each batch passes eight independent checks before release. Here’s what every one confirms, and why it matters for your research.
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Identity testing confirms the compound in the vial is exactly what's on the label — verifying its molecular weight and sequence by mass spectrometry, with HPLC retention matching. We test for it so you can trust there are no substitutions, mislabeling, or wrong analogs, which is the foundation of any reproducible experiment.
Net content verifies the actual mass of active compound in each vial against the labeled amount — confirming, for example, that a 10mg vial truly contains 10mg. We test for it so your reconstitution math and concentrations stay accurate, and so you always receive the full quantity you paid for.
Purity is measured by HPLC (high-performance liquid chromatography) and reports the percentage of the target compound relative to any related substances or impurities. We test for it to confirm our 99%+ standard, ensuring trace synthesis byproducts or truncated sequences don't confound your results.
Conformity is the overall check that a batch meets its full specification sheet — appearance, solubility, and every measured parameter falling within predefined acceptance criteria. We test for it as a final pass/fail gate confirming the batch meets Ascend.Science's release standards before it ever ships.
Sterility testing checks the finished product for viable microorganisms such as bacteria, fungi, and mold. We test for it to confirm the lyophilized product is free of microbial contamination that could compromise sample integrity or handling safety in the lab.
Heavy metals screening detects toxic elemental impurities — such as lead, arsenic, cadmium, and mercury — typically by ICP-MS against strict limits. Because raw materials and manufacturing can introduce trace metals, we test to keep them well below safe thresholds, protecting both data accuracy and anyone handling the material.
Endotoxin testing measures bacterial endotoxins (lipopolysaccharides shed by gram-negative bacteria) using the LAL assay, reported in endotoxin units per mg. Even sterile products can carry residual endotoxins that trigger inflammatory responses and skew biological assays, so we verify levels stay low — critical for cell-based and in-vivo research.
A fentanyl screen confirms the absence of fentanyl and its analogs in the finished product. We include it as an added layer of safety and supply-chain integrity — ruling out any cross-contamination from illicit substances and giving researchers complete peace of mind.