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甲基硫脲嘧啶 MTU 标准品
3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin
tert-Butylhydrazine hydrochloride (无证书)
Methacrylonitrile Solution 100ug/ml in Methanol
o-Cresol-d8 标准品
异狄氏剂酮溶液(100ng/ul,乙腈) 标准品
1,1-Dichloro-2,2-bis(4-Chlorophenyl-d4)ethylene
Diquat Dibromide monohydrate Solution 1970ug/ml in De-ionized water
Glyoxylic acid, 50% solution in 水
甲醇中吡丙醚溶液 广电计量