Polymer Formers - FIZ Karlsruhe

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Specific compounds with SCN
We will begin by looking at how to search for a few simple compounds.
Compounds with a Specific Compound Number can be fully defined by searching the SCN.
Thus:
Ethylene - R00326
Carboxymethyl cellulose - R01835
Maleic anhydride - R00843
Calcium carbonate - R01278
Triethyl aluminium - R00659
When these SCNs are indexed, they additionally autogenerate the Chemical Aspects for the
specific compound.
Specific compounds without SCN
Compounds which do not have a SCN can be defined in terms of Chemical Aspects. For
polymer formers a Generic code or ‘Others’ code (Gnnnn) is used with the aspects. All these
terms should be linked using the first level of linking.
4-Chlorophenol
D19 (1) D31 (1) D50 (1) D69 (1) D86 (1) F31 (1) Cl
where the aspects used are as follows:
D19 Benzene ring
D31 1 ring
D50 No unsaturation
D69 Halogen–C
D86 6 Carbons
F31
Cl
Monophenol
Chlorine
This will retrieve all references to compounds defined by this set of aspects, i.e. polymer
formers, additives, catalysts, polymer types and modifying agents. If we wish to restrict the
search to polymer formers only, we can add to the search the code for Monohydric phenol,
other (G1138).
4-Chlorophenol as Polymer Former
D19 (1) D31 (1) D50 (1) D69 (1) D86 (1) F31 (1) Cl (1) G1138