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  Inorganic Chemical Materials@(185)
  1. Inorganic Salt new!
  2. Alkali(6)
  3. Others(33)
  4. Oxide(25)
  5. Inorganic Acid(2)
  6. Elementary Substance(5)
  7. Industrial Gas(97)
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  Organic Chemical Materials@(231)
  1. Organic Intermediate(7)
  2. Pharmaceutical Chemicals(25)
  3. Others(22)
  4. Organic Acid(4)
  5. Ester(34)
  6. Heterocompound new!
  7. Organic Salt(14)
  8. Amine(23)
  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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  Chemical Waste@(430)
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  4. Extinction(48)
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