sigma試劑 Digitoxigenin ,D9404,CAS號: 143-62-4
sigma試劑 右美沙芬 氫溴酸鹽 ,Dextromethorphan hydrobromide D9684 - meets USP testing specifications
sigma試劑 己烯雌酚 ,Diethylstilbestrol,D4628 - ≥99% (HPLC)
sigma試劑 N,N-二乙基甲胺,N,N-Diethylmethylamine,D98203 - 97%
sigma試劑 18α-甘草次酸, 18α-Glycyrrhetinic acid,G8503 - ≥95%
sigma試劑 殼聚糖, Chitosan ,740500 - high purity, Mv 110,000-150,000