马来酰亚胺-PEG-马来酰亚胺, Mal-PEG-Mal

4-[4-(2-Hydroxyethyl)-piperazin-1-yl]-4-oxo-butyric acid

4-[4-(2-羟基乙基)哌嗪]-4-氧丁酸

H-DL-Trp-NH2

DL-Malic Acid

DL-苹果酸

Copper(II) oxide, ACS reagent

氧化铜(II)

Gentiopicroside

龙胆苦苷

(S)-N-Glycidylphthalimide

(S)-N-环氧丙基邻苯二甲酰亚胺

4,4'-Difluorobenzil

4,4'-二氟苯偶酰

2-Amino-5-bromo-3-nitro-benzoic acid

2-胺-5-溴-3-硝苯甲酸

Hypoxanthine

次黄嘌呤