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4-Aminobenzoic Acid-13C6
2,4,5-T n-butyl ester 标准品
Cortisone Acetate,
3-Fluorophenylhydrazine hydrochloride (无证书)
甲醇中炔丙菊酯
3,4,5-Trihydroxybenzoic-2,6-d2 Acid 标准品
2,4,5-Trimethoxyamphetamine hydrochloride 标准品
Benzo[a]pyrene-r-7,t-8-dihydrodiol-t-9,10-epoxide(),(anti) 标准品
饮料中的毒死蜱、腐霉利质控样 BQC1060147863
Certified Wastewater - Tracemetals