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- ·ÒëEPI: 180
- Ó¦Öú: 5 (Ó×¶ùÔ°)
- ¹ó±ö: 0.015
- ½ð±Ò: 6765.2
- É¢½ð: 48
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- ×¢²á: 2010-07-10
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594306435(½ð±Ò+5, ·ÒëEPI+1): ·Ç³£¸Ðл 2011-04-21 08:14:32
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Interaction with PPA, compound a doesn't turn into ring form. Analysis reveals that lactone compound is formed. As shown in Sheme 5-4, formation mechanism of the lactone compound is under research. In order to confirm the formation of the lactone compound , UV, NMR-H spectrum, MS as well as...is performed to chemically characterize it. Ï£ÍûÄܰﵽÄú |

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