The Purity & Sourcing Checklist
Print this and run any research-compound supplier through it before you buy. Five minutes here saves a wasted batch.
The 60-second vetting checklist
- Third-party (independent) lab testing is stated — and the lab is named
- A Certificate of Analysis (COA) is available on request
- Stated purity is a measured figure (e.g. 99%+), not vague prose
- A batch / lot number appears and can be matched to the vial
- Packaging is protective and temperature-aware
- Shipping is discreet, tracked, and US-based
- Clear "research use only" labeling and terms
The two questions that expose a weak supplier
1. "Which independent lab tested this, and can I see the report?"
2. "Does the COA's batch number match the vial you'll ship me?"
A credible supplier answers both without hesitation. Hesitation is your answer.
How to read a COA
- Compound identity — named clearly and matches what you ordered
- Measured purity — a real percentage from an actual assay
- Testing method — named (e.g. HPLC, mass spectrometry)
- Batch number + issuing lab — traceable and verifiable
Red flags — walk away
- No COA, or a COA that won't match a batch number
- "High purity" claims with no measured figure
- No named testing lab
- No cold-chain / protective packaging
Your first-order code
LUX20
20% off your entire order at LUX Compounds — third-party identity tested to 99%+, COA on every batch.
Shop LUX Compounds →