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2,4,5-三氯酚醋酸盐,10ng/ul溶于异辛烷 标准品
2-喹啉甲酸
Silica C18M 2D Silica based
COLD TRAPS (DEWAR CONDENSER) FOR INNER COOLING I.D 60 MM; A.D 90 MM; HEIGHT 200 MM WITHOUT COCK;
BETABASIC 8 5UM 150X2.1MM COLUMN
甲醇中邻硝基甲苯溶液标准物质
1-己硫醇
ProElut C8 1000mg / 6mL 30/pk
无菌培养皿,60*15mm
1,4-二丙烯酰哌嗪