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... ROPYRA ... (5 elements)

en (3) : CHLOROPYRAMINE · MACROPYRAMID · TETRAHYDROPYRAN

nl (2) : DIHYDROPYRAAN · TETRAHYDROPYRAAN

... OPYRA ... (49 elements)

GALACTOPYRANOSE · GALACTOPYRANOSID · GALACTOPYRANOSIDE · GLUCOPYRANOSYL · METHYLGALACTOPYRANOSIDES · METHYLGLUCOPYRANOSIDES · NITROPHENYLGALACTOPYRANOSIDES · THIOGALACTOPYRANOSID · THIOGALACTOPYRANOSIDES · THIOGLUCOPYRANOSIDES

... ROPYR ... (37 elements)

AEROPYRUM · CHLOROPYRAMINE · MACROPYRAMID · MICROPYROPSIS · MICROPYRUM · MIEROPYRUM · OCHROPYRE · PTEROPYRUM · SCLEROPYRUM · SULFACHLOROPYRIDAZINE

... CROPYRA ... (1 element)

MACROPYRAMID

... DROPYRA ... (3 elements)

DIHYDROPYRAAN · TETRAHYDROPYRAAN · TETRAHYDROPYRAN

... OROPYRA ... (1 element)

CHLOROPYRAMINE

... ROPYRAA ... (2 elements)

DIHYDROPYRAAN · TETRAHYDROPYRAAN

... ROPYRAM ... (2 elements)

CHLOROPYRAMINE · MACROPYRAMID

... ROPYRAN ... (1 element)

TETRAHYDROPYRAN