1. Search : Chemical Substance (continue..) Ruchareka Asavisanu Faculty of Science, Mahidol University scras@mahidol.ac.th / Tel : 02-201-5891

2. Ruchareka Asavisanu scras@mahidol.ac.th Any atom except H Variables

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4. Additional options allow for the inclusion or exclusion of certain substance classes.

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6. Analyze and Refine

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10. Zwitterion Is a compound with acidic and basic groups in the same molecule. Tautomers are organic compounds that are interconvertible by a chemical reaction called tautomerization. This reaction results in the formal migration of a hydrogen atom accompanied by a switch of adjacent conjugated double bonds. “Isomers that are rapidly interconverted” (e.g. keto-enol tautomers)

11. Ruchareka Asavisanu scras@mahidol.ac.th

14. Stereo in answer structure No stereo in answer structure

15. Ruchareka Asavisanu scras@mahidol.ac.th Refine Substances

16. Ruchareka Asavisanu scras@mahidol.ac.th Searching by MF For addition polymers and most condensation polymers put the molecular formula of the monomers, separated by dots, within brackets and close with an “X” –(C8H8)x for styrene homopolymer –(C8H8. C5H8)x for styrene-isoprene polymers

17. Ruchareka Asavisanu scras@mahidol.ac.th Results for (C8H8. C5H8)x

18. Ruchareka Asavisanu scras@mahidol.ac.th

19. Reaction Search with functional group Draw a structure, Then add functional groups

20. Ruchareka Asavisanu scras@mahidol.ac.th

22. Draw a reaction arrow

23. Ruchareka Asavisanu scras@mahidol.ac.th

25. Reactions may be viewed as one representative reaction per reference. To see all reactions in the reference, click on link

26. THE END