為實驗者效勞
Biphenyl CAS:92-52-4
500G
Indigo carmine C.I. 73015
CAS：860-22-0
Potassium permanganate
CAS：7722-64-7
Diethyl ether CAS: 60-29-7
Diisobutyl ketone CAS: 108-83-8
