Nowadays everyone has S isomer to sell, obvious sales gimmick because due to financial laws something that its way more rare and expensive cant be sold by everyone.
Anyway is there ways to test for S isomer with reagents or other DIY ways? Visually s isomer crystals have a hexagonal or "rice-like" s vs racemic hape cubic shaped crystals , if not mistaken.
This image depicts on the left s isomer and s racemic on right from bluelight.
Appreciate all input cheers.
Racemic ketamine is simply a mix of R/S isomer. Even if you did test for S-ketamine with a reagent, you wouldn't know if it was pure S-isomer or racemic. You'd have to get the substance lab tested to know for sure.