香草醛 [香兰素],Vanillin;≥97%, FCC, FG
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N,N-二甲基乙酰胺,N,N-Dimethylacetamide [DMAc];puriss. p.a., ≥99.5% (GC)
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尿素酶来源于洋刀豆 [脲酶],Urease from Canavalia ensiformis (Jack bean);Type III, powder, 15,000-50,000 units/g solid
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铼,Rhenium;箔/薄片,厚度~0.25毫米;foil, thickness 0.25 mm, 99.98% trace metals basis
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甜菜碱盐酸盐,Betaine hydrochloride;for synthesis, ≥98.0%
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氧化钐(III),Samarium(III) oxide;99.9% trace metals basis
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乙酸钠 [醋酸钠],Sodium acetate;anhydrous for analysis EMSURE® ACS,Reag. Ph Eur