I am not sure whether chloromycetin can be replaced by oxalic acid,thus i suggest you make a small order to have a experiment first.Besides, the price of its medical form is a little higher of the industrial one.If you can take my suggestion kindly,i will offer you the lowest price. (本人以前也是做外贸的,呵呵,以后还有什么问题可以直接和我联系） I am not sure whether chloromycetin can be replaced by oxalic acid,thus i suggest you make a small order to have a experiment first.Besides, the price of its medical form is a little higher of the industrial one.If you can take my suggestion kindly,i will offer you the lowest price. (本人以前也是做外贸的,呵呵,以后还有什么问题可以直接和我联系）