Sometimes precursors are able to get the final substance into places the stand-alone stuff can't enter.
Remember, precursors are typically substances that help create the end product right where existing processes currently place or need it.
5 posted on 02/10/2023 9:53:22 PM PST by ConservativeMind
(Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)