฿330.00
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Trimethyl orthoformate
99.56%, anhydrous grade
฿780.00
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฿520.00
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Cyanoacetamide
98%
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Diethylenetriaminepentaacetic acid
Reagent grade, 99% (titration)
฿300.00
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EGTA Solution
0.2M,pH7.0
฿950.00
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