為實驗者效勞
Bromocresol purple, indicator CAS:115-40-2
5G
2,6-Di-tert-butyl-4-methylphenol CAS: 128-37-0
Diethyl ether CAS: 60-29-7
Indigo carmine C.I. 73015
CAS：860-22-0
Diethylene glycol CAS: 111-46-6
