Quality Assurance

Quality Assurance

Quality Assurance

Every batch independently tested after manufacturing. Results published before it is sold.

Every compound supplied by NextChems is independently tested by an accredited third-party laboratory after manufacturing. No batch is approved for release without passing analytical verification against our stated specifications. Testing covers purity, identity, and composition — confirmed using High-Performance Liquid Chromatography (HPLC) and mass spectrometry.

Test results are not held internally. Every Certificate of Analysis is published on our Lab Tests page and linked directly from the relevant product page, so researchers can review purity percentage, batch number, testing methodology, and laboratory credentials before placing an order.

99%+ Purity
HPLC Every batch
3rd party Independent lab

How We Test

One process. Every compound. No exceptions.

Step 01
Manufacturing
Compounds are produced under pharmaceutical-grade manufacturing protocols. Batch records are maintained throughout production for full traceability.
→ Made to specification.
Step 02
Independent Third-Party Testing
Every finished batch is submitted to an accredited third-party laboratory for analytical verification. Testing methods include High-Performance Liquid Chromatography (HPLC) and mass spectrometry. Each batch is assessed against our 99%+ purity specification. No batch is released until it passes.
→ Tested after it is made. Before it is sold.
Step 03
Batch Release & Documentation
Batches that meet specification are assigned a lot number and Certificate of Analysis. COA documents are published on our Lab Tests page and linked from each product page before the compound is made available to order.
→ Documented. Published. Accessible before you order.

What We Test For

On every finished batch.

Purity verification
99%+ minimum across all compounds — confirmed by HPLC analysis on every finished batch
Identity confirmation
Mass spectrometry confirms compound identity against reference standards
Composition analysis
Molecular weight and formula verified and documented for every production lot
Lot-level documentation
Every approved batch assigned a unique lot number with full traceable test records
Batch-by-batch testing
Every individual production lot is independently tested
Publicly accessible results
All COAs published on the Lab Tests page and linked from each product page. No login required.

Where to Find Test Results

Lab Tests Page

The full catalogue of Certificates of Analysis, searchable by compound name, CAS number, or lot number. All historical and current batch results in one place.

View Lab Tests →

Individual Product Pages

The Certificate of Analysis for the current lot of each compound is linked directly on the product page — accessible before adding to cart.

Browse Compounds →

Our Quality Guarantee

Verified. Or your money back.

If you independently re-test any NextChems compound at an accredited HPLC testing facility and results do not meet our stated purity specification, we will reimburse the full cost of your order including shipping, and the cost of the independent analysis up to $100. No disputes. No conditions.

If an independent test result does not meet specification
→ Full order reimbursement including shipping
→ HPLC analysis fee covered up to $100
→ No disputes. No conditions.

Ready to verify our quality?

Browse our lab results or get in touch with the team.

View Lab Tests & COAs Browse Research Compounds
Questions about our testing process or documentation? Contact support@nextchems.com
Process last reviewed: May 2026