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1-二十烯
19-Noretiocholanolone glucuron 标准品
Propylene thiourea Solution 100ug/ml in Ethyl acetate containing 0.1% of DTT
Monalide 标准品
1-乙氧基-2-丙醇(标准品)[1569-02-4]
49种农残混标 BePure-33430XZ-c
甲酰氨磺隆
Ethyl-3-chloropropionate (无证书)
2-Nitroso-1-naphthol (无证书)
Methyl 2,4-Dichlorophenoxy-3,5,6-d3-acetate 标准品