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... OCATECH ... (18 elements)

HOMOPROTOCATECHUIC · METAPYROCATECHASE · PROTOCATECHUATE · PROTOCATECHUIC · PYROCATECHASE · PYROCATECHIN · PYROCATECHINE · PYROCATECHOL · PYROCATECHOLS · SULFOCATECHOL

... ROCATEC ... (10 elements)

METAPYROCATECHASE · PIROCATECOLO · PYROCATECHASE · PYROCATECHIN · PYROCATECHINE · PYROCATECHOL · PYROCATECHOLS

... ROCATECHA ... (4 elements)

METAPYROCATECHASE · PYROCATECHASE

... ROCATECHI ... (2 elements)

PYROCATECHIN · PYROCATECHINE

... ROCATECHO ... (3 elements)

PYROCATECHOL · PYROCATECHOLS

... YROCATECH ... (9 elements)

METAPYROCATECHASE · PYROCATECHASE · PYROCATECHIN · PYROCATECHINE · PYROCATECHOL