Spectral Database for Organic Compounds: http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi
Classic Organic Reactions:
http://www.chempensoftware.com/organicreactions.htm
Google language tool:
http://www.google.cn/language_tools?hl=zh-CN
Travel blogs
15 年前
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