RU58841 is third-party lab-tested here in the USA, current purity analysis can be viewed on the NH Nootropics website. Typically it is around 99%.

30ml (1oz+) of 8% RU58841 (2,400mg) in 67% 200 proof ethanol and 33% USP propylene glycol. Product is blended under argon to minimize oxidation. Powder also available.