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5-Chlorovaleric acid (无证书)
1,6-Pyrenequinone 标准品
PUNYW26728148 Etoxazole-d5
4-Fluorobenzyl alcohol (无证书)
Dinitropyrene Isomers and 1-Nitropyrene in Methylene Chloride
2-Heptanone
二硫化碳中8种苯系物混合溶液标准物质(8种VOC) ,HJ 584-2010和GB-T 14677
杀螟丹盐酸盐 BePure-26919YM
Lutetium Oxide (Lu2O3) 99.99%
4-Phenoxybutyl bromide (无证书)