No Ed, thanks, but I don't think so: it is a _chemical_ store, not a photo store; the sales people there aren't even aware that the pyrogallol can be used as a photo developer.(posted 8389 days ago)I browsed my chemical reference books, but could not find any information about such an item. My only hope is that may be there are chemists reading this board that can advice, or may be the "A" is commonly known modification..