prov:value
| - Of particular interest are clarifiers where R is methyl, ethyl, propyl, butyl, allyl, or crotyl, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 are selected from C1-4 alkyl, chlorine, bromine, thioether and a 4-membered alkyl group forming a carbocyclic ring with adjacent carbon atoms of the unsaturated parent ring.
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