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Procaine Hydrochloride
Benz[a]anthrancene-7,12-dione
氯啶菌酯(符合:GB 2763-2016)
溴苯烯磷溶液,100ppm
特布他林-D9同位素标准品
TIN ORE CONCENTRATE (Sn) 标准品
Sudan black B (无证书)
2-溴-2-硝基-1,3-丙二醇/溴硝丙醇/溴丙醇 甲醇中
苦参碱 对照品
Line Position and Line Shape Standard for Powder Diffraction (Lanthanum Hexaboride Powder)