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S1P3O1R1O1P3O1L1L1E1N1I1N1S1
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SPOROPOLLENINS is validvalid

SPOROPOLLENIN, [n]

191,762 of 196,601 in NWL2023·also valid in CSW24

SPOROPOLLENIN, a polymer that comprises the exine (outer layer of the wall) of spores and pollen grains [n]

231,762 of 280,887 in CSW24·also valid in NWL2023