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(±)-N`-Nitrosonornicotine-2.4.5.6-d4 (pyridine-d4)

2，2'-(Dithiodimethylene)difuran

Betamethasone 17-Propionate

Monocrotophos 1000 μg/mL in Methanol

A16595000TO-1000

Pyraclostrobin 1000 µg/mL in Toluene

N,N'-Diphenylthiourea

Cyflufenamid 10 µg/mL in Cyclohexane

HQA产气肠杆菌定量标准菌株，水质粪大肠菌群测定阴性对照、培养基检验（多管发酵法）

Cortisol-9.12.12-d3

A11650000AC-1000

Chlorthiophos 1000 µg/mL in Acetone

3,5-Dichloroanisole

Palmitic Acid Methyl Ester

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