Analytical reference standards, documented to the lot.
Vexum Labs LLC supplies lyophilized research reference materials for in-vitro laboratory research. Every catalog item is described by its objective specifications and supplied strictly for research use only.
Documented identity
Each product page lists the objective specifications a laboratory needs — CAS or reference identifier, sequence where applicable, molecular weight, and stated purity. We make no representation of safety, efficacy, or fitness for any purpose.
Certificates of Analysis
Third-party Certificates of Analysis are published to our COA Library as they are issued, searchable by product name or lot number, so the documentation for a lot is available before or after purchase.
Sold to qualified researchers
Access requires confirming you are at least 21 and a qualified researcher, or authorized to purchase for a research institution. This attestation is recorded with every order.
Research use only — by construction
We do not sell preparation supplies, we do not publish use guidance, and we do not host product reviews. The products are not drugs, foods, dietary supplements, cosmetics, or medical devices, and have not been evaluated by the FDA.
Every batch follows the same path
Synthesize & lyophilize
Each reference standard is produced and supplied as a lyophilized powder.
Third-party assay
An independent laboratory confirms identity and purity by HPLC and mass spectrometry.
COA to the lot
Each certificate of analysis is published to the COA Library under its lot number.
Browse the catalog
Each listing is an analytical spec sheet with a downloadable certificate of analysis.