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OPTIMIZATION OF TIME REACTION AND HYDROXIDE ION CONCENTRATION ON FLAVONOID SYNTHESIS FROM BENZALDEHYDE AND ITS DERIVATIVES | Handayani | Indonesian Journal of Chemistry 21825 40912 1 PB

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Tabel 2. Data hasil sintesis dengan variasi konsentrasi ion hidroksida
Gambar 5. Spektra 1H-NMR senyawa (a) kalkon (b)4-metoksikalkon dan (c) 3,4-dimetoksikalkon

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