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  Inorganic Chemical Materials@ new!
  1. Inorganic Salt new!
  2. Alkali(6)
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  4. Oxide(24)
  5. Inorganic Acid(2)
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  Organic Chemical Materials@(231)
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  2. Pharmaceutical Chemicals(26)
  3. Others(22)
  4. Organic Acid(4)
  5. Ester(33)
  6. Heterocompound new!
  7. Organic Salt(13)
  8. Amine new!
  9. Ketone new!
  10. Alkyl(3)
  11. Mellow(49)
  12. Sour Anhydride new!
  13. Aromatic Hydrocarbon(2)
  14. Ether(18)
  15. Phenol(7)
  16. Aldehyde(3)
  17. Alkene new!
  18. Sulfone(2)
  19. Alkyne new!
  20. Saccharide(4)
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Organic Acid