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(S)-(-)-α,α-二苯基-2-吡咯烷甲醇,98%+
7-Hydroxy-4-methylcoumarin, laser grade, pure 25GR
3-Methyl-2-thiophenecarboxylic acid, 98% 5GR
甲酸戊酯, ≥95.0%
15-冠-5-醚, ≥97.0%
2,3,4-三羟基二苯甲酮, ≥98.0%
4-氯-2-硝基苯甲醛,98.0%(GC)
4,4'-二吡啶二硫醚,97.0%(GC&T)
四羟基-1,4-苯醌水合物,96.0%(T)
铵根离子标液,1000ug/ml溶于水,NH4+