Is Androsta-1,4,9(11)-triene-3,17-dione vegetarian?

Androsta-1,4,9(11)-triene-3,17-dione (ATD) is a synthetic steroid compound used mainly as a chemical intermediate and research reagent, notably as an aromatase inhibitor precursor. It is produced through chemical or semi-synthetic synthesis, typically starting from plant sterols or other steroid precursors.

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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