L-缬氨酸,L-Valine;Pharmaceutical Secondary Standard; Certified Reference Material
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rac-单(2-乙基-5-氧己基)邻苯二甲酸酯,mono-[(2RS)-2-Ethyl-5-oxohexyl] phthalate;analytical standard, ≥95.0% (HPLC)
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溴甲酚绿磺酸内酯,Bromocresol Green Sultone Form [BCG];for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4)
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补骨脂苷,Psoralenoside;≥98%(HPLC)
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黄嘌呤,Xanthine;≥99%, powder
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三羟甲基氨基甲烷盐酸盐 [TRIS盐酸盐],TRIS hydrochloride;EMPROVE® EXPERT
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二硫化二异丙基黄原酸酯,Diisopropylxanthogen disulfide