Chemical Studies on Constituents of Marine Algae-II

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  • 海そう成分の化学的研究　ＩＩ　紅そうイトフジマツの成分
  • カイソウ セイブン ノ カガクテキ ケンキュウ 2 コウソウ イトフジマツ ノ
  • 紅藻イトフジマツの成分

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Six crystalline substances were isolated from a methanol extract of the red marine alga, Rhodomela subfusa, and investigated by ultraviolet absorption, infrared spectroscopy, nuclear magnetic resonance, mass spectrometry and chemical methods.<br> Three of them were identified as 2, 3-dibromo-4, 5-dihydroxybenzyl methyl ether, 2, 3-dibromo-4, 5-dihydroxybenzaldehyde and 2, 3-dibromobenzyl alcohol 4, 5-disulfate dipotassium salt. The yields of these bromophenols amounted to 0.06%, 0.02% and 9.2% of the dried seaweed respectively.<br> The remaining three compounds were shown to be cholesterol, palmitic acid and trans-aconitic acid.

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