The .vc means Verified Compounds.
Verified Compoundsis a United States reagent supplier serving qualified investigators. The domain's suffix is editorial: Verified Compounds. Provenance and verification are the brand. The product record should make clear what is known, what is pending, and which documentation is attached to a released lot.
Released lots should carry a lot number and documentation packet. When documentation is pending, the product page says so plainly instead of substituting a marketing percentage or a generic lab claim.
Verified Compounds does not publish protocols, and does not suggest applications. The molecule is described in chemistry terms — sequence, molecular weight, molecular formula, stability — and the literature is cited in chemistry context. Interpretation belongs to the investigator and to their institutional review.