The Atto Corporation Laboratories are manufacturing Atto Corporation, Atto, Kronos Dio, Kronos Ht, Circadian, kits and reagents distributed by Gentaur. Our reagents are RUO, for Research use only, ISO9001 certified. Some are FDA approved or ISO13485 for IVD (In Vitro Diagnostics). To buy Atto Corporation, Atto, Kronos Dio, Kronos Ht, Circadian, laboratory tools and products, please contact your local Gentaur office for next day or next week delivery. Atto Corporation Research support team in Gentaur will send you the MSDS, Protocols and Safety Datasheets of all Atto Corporation, Atto, Kronos Dio, Kronos Ht, Circadian, items. We offer money back guarenthee on all orders shipped by Gentaur. To order Atto Corporation products send the catalog number, size and your price request by email. We offer a free selection audit if you are not sure what kit exactly you need for your valuable lab samples.