Patrick Arnold
Patrick Arnold ( born 1966 ) is an American organic chemist known for introducing androstenedione , 1-androstenediol , and methylhexanamine into the dietary supplement market , and for creating the designer steroid tetrahydrogestrinone , also known as THG and "the clear" . 
<triplet> Patrick Arnold <subj> 1966 <obj> date of birth <subj> American <obj> country of citizenship <subj> organic chemist <obj> field of work