It's OK, Alibaba, but you also need to find a larger supplier. I recommend you to go to the chemical raw material trading platform. We bought it on Hualang.com. They have more suppliers and the competition is fierce, so the price is cheaper.

Good evening, I sometimes buy some analytical pure materials on Alibaba. Generally speaking, as long as they are not contraband or controlled chemicals, the quality is very good. I'm not sure about the bulk goods, but I'm quite satisfied with the 500ml AR and 20KG common organic solvent small package bulk water. The above only represents my personal feelings, please refer to it as appropriate.