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p-Naphtholbenzein (0.2% in Acetic Acid) [for Non-aqueous titration], %
6-(Tetrahydropyran-4-yloxy)pyridine-2-carbaldehyde, 95%
4,4'-二正十二烷氧基氧化偶氮苯
6-Amino-2-methylnicotinonitrile, 97%
TOS丙酸盐琼脂基础
gamma-十一碳内酯, 98% 25ML
N-Methyl-N-(4-pyridinylmethyl)amine, 97%
LUTETIUM(III) PERCHLORATE HYDRATE, 99.9%
4-硝基邻氨基苯甲酸,97.0%(T)
30种元素ICP-MS混标(HJ 776-2015)