Trusted by 1,200+ research labs

The COAs match the spec sheet exactly. We've cross-verified with our internal HPLC and mass spec twice now and the purity numbers hold. This is the only US vendor where we don't second-guess incoming reagents.

Ordered Friday afternoon, shipped Monday, arrived Wednesday. Lyophilization is clean, vials are intact, batch certificate was in the box. This is what serious vendor performance looks like.

Solid purity and packaging. The discreet shipping is a nice touch. Only feedback is I'd love an option for larger pack sizes — when I find a vendor I trust, I want to consolidate.

I run a small academic lab and rotate between three suppliers. ChemBioSynth is now my default. The transparency on testing methodology — actual chromatograms in the COA — is rare.

Best research-supply vendor I've used since starting in this field. The 10% welcome discount made the first order easy to justify, and now I'm a regular. Customer service replied in under two hours when I had a sourcing question.

I've tested batches from four different suppliers this year. ChemBioSynth's HPLC trace had the cleanest baseline of any of them. Period.

Procurement is so much easier when the COA is actually trustworthy. The portal is simple, ordering is fast, and we've never had a packaging issue in eight orders.

Fast shipping, clean product, good price point with the welcome code. Knocking one star only because I wish the lot history was browsable on the site without contacting support.