芹甙元-7-葡萄糖苷,Apigenin 7-glucoside;Pharmaceutical Secondary Standard; Certified Reference Material
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2,5-二羟基苯甲酸,2,5-Dihydroxybenzoic acid [2,5-DHBA, DHB];98%
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2-甲巯基吩噻嗪,2-Methylthiophenothiazine;97%
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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
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枸橼酸铋 (III),Bismuth(III) citrate;99.99% trace metals basis, −325 mesh