6,7-二羟基香豆素 [七叶亭, 秦皮乙素],6,7-Dihydroxycoumarin;phyproof® Reference Substance, ≥95.0% (HPLC)
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核苷磷酸化酶来源于细菌,Nucleoside Phosphorylase bacterial [PNP];recombinant, expressed in E. coli, ≥10 units/mg protein -
二苄环辛基-PEG4-马来酰亚胺,Dibenzocyclooctyne-PEG4-maleimide;for Copper-free Click Chemistry -
二(2-羟基丙酸)二氢氧化二铵合钛溶液,Titanium(IV) bis(ammonium lactato)dihydroxide solution;50 wt. % in H2O -
双(2-戊氧羰基-3,5,6-三氯苯基)草酸酯,Bis(2-carbopentyloxy-3,5,6-trichlorophenyl) oxalate [CPPO];≥96.5% (by AgNO3, titration) -
二乙基二硫代氨基甲酸银盐,Silver diethyldithiocarbamate [DETC, AgDDC];ACS reagent, for the determination of As, ≥99.0%
