; (VIII) 6-ethyl-4-(trifluoromethyl)-6,7,8,9-tetrahydropyrido[3,2-g]quinolin-2(1H)-one (commonly known as LG-121071 ); (IX) (S)-3-(4-chloro-3-fluorophenoxy)-N-(4-cyano-3-(trifluoromethyl)phenyl)-2-hydroxy- 2-methylpropanamide (commonly known as S-23 ); and (X) any salt, ester, ether, or substituted analogue of a drug or other substance described in subclauses (I) through (IX). (B) A substance excluded under subparagraph (A)(i) may at any time be scheduled by the Attorney General in accordance with the authority and requirements under subsections (a) through (c) of section 201 (21 U.S.C. 811). (C) (i) A drug or other substance (other than estrogens, progestins, corticosteroids, and dehydroepiandrosterone, unless scheduled under subparagraph (B)) that is not listed in subparagraph (A)(ii) and is derived from, or has a chemical structure substantially similar to, 1 or more SARMs listed in subparagraph (A)(ii) shall be considered to be a SARM for purposes of this title if the drug or other substance— (I) has been created or manufactured with the intent of producing a drug or other substance that— (aa) promotes muscle growth; or (bb) otherwise causes a pharmacological effect similar to that of testosterone; or (II) has been, or is intended to be, marketed or otherwise promoted in any manner suggesting that consuming the drug or other substance will promote muscle growth or any other pharmacological effect similar to that of testosterone. (ii) A drug or other substance shall not be considered to be a SARM for purposes of this subparagraph if the drug or other substance— (I) is— (aa) an herb or other botanical; (bb) a concentrate, metabolite, or extract of, or a constituent isolated directly from, an herb or other botanical; or (cc) a combination of 2 or more substances described in item (aa) or (bb); (II) is a dietary ingredient for purposes of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 301 et seq.)