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1-苄基-4-氰基-4-羟基哌啶盐酸盐
ERLENMEYER-FLASKS, WIDE NECK, MADE OF QUARTZ-SILICA, WITH RIM, DIN 12385, 250 ML, 80 X 140 MM
1,1,2,2-四氯乙烷 AR(沪试)
填充柱3% OV-225 on Chromosorb WHP 80/100
RP-AMIDEC16 5UM 25CMX4.6MM VAL PK 3EA
环凯牌二氧化氯消毒液
HYPERSIL GOLD 3UM 75X4.6MM COLUMN
DISPOSABLE TEST TUBES
Whatman 硝酸纤维素滤膜
d(+)-山梨糖