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(S)-4-氯-3-羟基丁酸乙酯,95.0%(GC)
硫尿, extra pure, 99% 500GR
Poly(ethylene oxide), approx. M.W. 900,000 100GR
Urokinase Substrate I Colorimetric
Cyclopropyl 2-thienyl ketone, 99% 5GR
垃圾填埋场渗滤液中微量元素标准溶液
Sulfur trioxide trimethylamine complex, 95% 500GR
Bis(acetato-O)(3-methoxyphenyl)iodine, 98% 5GR
环庚酮,99%
Germanium ICP Standard- [H2O- HNO3- HF]