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Diethyl oxalate, 草酸二乙酯/500mL/CAS:95-92-1'); document.write('¥195
1,3-Cyclopentanedione, 1,3-环戊二酮/50g/CAS:3859-41-4'); document.write('¥2000
Acetylacetaldehyde dimethyl acetal, 4,4-二甲氧基-2-丁酮/500g/CAS:5436-21-5'); document.write('¥1010
BG-M190044(单排管真空气体分配器/四氟节门/四组/右小咀)'); document.write('¥224