為實驗者效勞
Indigo carmine C.I. 73015
CAS：860-22-0
Diethylamine CAS: 109-89-7
Diethyl ether CAS: 60-29-7
Potassium permanganate
CAS：7722-64-7
Barium chloride 2-hydrate CAS:10326-27-9
