Dimethyl sulfoxide production has not changed in terms of basic chemistry. The same oxidation route is still used. What has changed is how tightly that reaction is controlled and how little variation is allowed to pass through to the final product. Earlier, correction happened after production. Now, the effort is to prevent variation from forming in the first place. This shift is being driven by application pressure. Downstream systems are less tolerant than before. Small changes that were once ignored now show up in process stability. That is why top dimethyl sulfoxide suppliers India are not just increasing capacity. They…