There is also Sandy King's PyroCat formula, which can be mixed yourself. It uses pyrocatechin and glycin. No I havent used it because being accident prone I like to avoid the more toxic photo chems, but if I ever decide to try a staining developer thats probably what I'd try.(posted 8510 days ago)I dont know that pyrocatechin is as toxic as pyrogallol-at least not from what I've read-but it is certainly more toxic than most developers.
Wayne