為實驗者效勞
Barium hydroxide 8-hydrate CAS:12230-71-6
500G
2,6-Di-tert-butyl-4-methylphenol CAS: 128-37-0
Diisopropanolamine CAS: 110-97-4
Indigo carmine C.I. 73015
CAS：860-22-0
Dibutyl ether CAS: 142-96-1
