Before any compound leaves our lab, it goes through a full round of quality testing. Most suppliers only check for a few things. We check for nine. That means more time and more work on our end — but it also means the researchers who use our materials can trust what is in every vial.
Below, you can read about each of the nine tests we run: what it is, and why it matters for accurate, repeatable research.
These materials are intended for research use only, by qualified professionals in laboratory settings. They are not for human or animal use, consumption, or any diagnostic or therapeutic purpose, and no claims are made about health effects or human use.
The Nine Tests
What each one checks, and why it matters for good research.
Identity Testing
This test checks that the vial really has the exact compound the label says it does. Scientists use special lab tools to look closely at the molecule and compare it to a known, verified standard. This matters because if a lab isn’t sure what’s actually in a vial, nothing they test with it can be trusted. Identity testing gives researchers confidence they’re working with the exact compound they think they are.
Purity Testing
Purity testing measures how much of what’s in the vial is the real compound, and how much might be other material left over from manufacturing. It’s usually shown as a percentage, like 98% or 99%. Unknown extra material can change how a sample behaves in an experiment, so knowing the purity level lets researchers understand exactly what they’re working with.
Net Content Testing
This test checks exactly how much material is inside each vial, not just what the label claims. The lab weighs or measures the true amount. If a vial has more or less material than expected, it can throw off calculations, so knowing the exact amount helps researchers get their numbers right from the very first step.
Endotoxin Testing
Endotoxins are tiny particles left behind by certain bacteria, even after the bacteria are gone. This test checks a sample for endotoxins, down to amounts too small to see. They can interfere with lab work, especially experiments involving cells or biological systems, so testing for them helps make sure a sample won’t cause confusing or misleading results.
Heavy Metals Testing
This test checks a sample for trace metals such as lead, arsenic, mercury, or cadmium, which can sometimes appear during manufacturing. These metals can react with other materials and change how an experiment behaves. It also matters for lab safety: if trace heavy metals are present, anyone handling the sample should follow standard laboratory safety practices, including wearing the right personal protective equipment (PPE), such as gloves and eye protection, in line with their institution’s chemical hygiene plan.
Sterility Testing
Sterility testing checks whether a sample has any bacteria, mold, or other living organisms growing in it. Contamination can grow and spread over time, affecting anything the sample touches in a lab. Confirming sterility protects the reliability of a whole research setup.
Residual Solvent Testing
Solvents are liquids used to help make or purify a compound during manufacturing. This test checks how much of those liquids might still be left behind in the finished product. Leftover solvents can react with other materials and change the outcome of an experiment, so measuring them tells researchers exactly what else might be present in the vial.
Residual Moisture Testing
This test measures how much water is left in a sample, usually after a drying step called lyophilization (freeze-drying). Extra moisture can affect how stable a compound stays over time and can throw off its measured weight, so knowing the exact moisture level helps researchers store samples correctly and calculate accurate amounts.
Vial-to-Vial Variance (3 Replicates)
For this test, the lab checks three separate vials from the same batch and compares them closely, re-running tests like purity and content on all three. Research depends on consistency — if vials from the same batch differ from one another, it’s hard to repeat an experiment and trust the results. Testing multiple vials confirms a whole batch is uniform, so researchers get the same starting material every time.
Why It All Matters
Good research starts with knowing exactly what’s in front of you. That’s why we build all nine of these checks into every batch we release, not just the ones that are quick or required. When you see our test results, you’re seeing the same kind of rigor we’d want if we were the ones running the experiment.
As with any lab material, researchers should always follow their institution’s standard safety procedures, including proper personal protective equipment (PPE), when handling any sample.
For Research Use Only. Not for human or veterinary use, consumption, or any diagnostic or therapeutic purpose. Intended for use by qualified professionals in a laboratory or research setting only. No claims are made regarding safety, efficacy, or health effects.