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B-10-2

13C NMR (125 MHz, MeOD) δ = 56.78, 108.33, 148.83.
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静思语: 金币+20, ★★★★★最佳答案 2015-03-29 23:12:15
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8 .     syringic acid
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10 .     syringic acid
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2楼2015-03-29 23:08:16
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