甲基丙烯酸酐,Methacrylic anhydride;contains 2,000 ppm topanol A as inhibitor, 94%
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氯化铅(II),Lead(II) chloride;powder, 98%
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金雀花碱,Cytisine;≥99.0% (HPLC), ≥99%
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λ-角叉菜胶 [λ-卡拉胶, λ-角叉胶],λ-Carrageenan;plant mucopolysaccharide
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乙酸异丁酯,Isobutyl acetate [IBA];pharmaceutical secondary standard, certified reference material
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硫氰酸铵,Ammonium thiocyanate;for analysis EMSURE® ACS,ISO,Reag. Ph Eur, ≥99.0% (silver nitrate titration)
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乙酸铵 [醋酸铵],Ammonium acetate;reagent grade, ≥98%