ISOBUTYLS is validvalid

ISOBUTYL, a hydrocarbon radical

102,993 of 196,601 in NWL2023·also valid in CSW24

ISOBUTYL, as in methyl isobutyl ketone, a colourless insoluble liquid ketone used as a solvent for organic compounds

124,742 of 280,887 in CSW24·also valid in NWL2023

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