sigma试剂1,1,1-三氯乙烷 , 1,1,1-Trichloroethane , 02669 - analytical standard
sigma试剂 (R)-(+)-柠檬烯 ,(R)-(+)-Limonene, 62118 - analytical standard, for terpene analysis
sigma试剂N-Butyl acetate,乙酸正丁酯,442666-U - analytical standard, ampule of 1000 mg
Sigma试剂479799 二乙烯基苯基膦,Divinylphenylphosphine
sigma试剂 对甲酚 p-Cresol 42429 - analytical standard
Sigma试剂 高氯酸铝 九水合物 Aluminum perchlorate nonahydrate 208485 -98%