為實驗者效勞
Benzophenone CAS:119-61-9
250G
Diethylene glycol monoethyl ether CAS: 111-90-0
Dextrin white CAS: 9004-53-9
Barium chloride 2-hydrate CAS:10326-27-9
Diisopropanolamine CAS: 110-97-4