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... HOPYRA ... (2 elements)

... HOPYR ... (15 elements)

DIPHOSPHOPYRIDINE · METHOPYRAPONE · METHOPYRIMAZOLE · ORTHOPYROXENE · ORTHOPYROXENES · PHOSPHOPYRUVATE · PSATHOPYRGOS · SUCHOPYREK · SULFAMETHOPYRAZINE · TRIPHOSPHOPYRIDINE

... OPYRA ... (49 elements)

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

... HOPYRAZ ... (1 element)

SULFAMETHOPYRAZINE

... THOPYRA ... (2 elements)

METHOPYRAPONE · SULFAMETHOPYRAZINE