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... HYLF ... (15 elements)

ALPHAMETHYLFENTANYL · DIMETHYLFORMAMID · DIMETHYLFORMAMIDE · DIMETHYLFURAN · HYDROXYMETHYLFURFURAL · METHYLFENIDAAT · METHYLFLUORPREDNISOLONE · METHYLFOLATE · METHYLFORMAMID · METHYLFORMIAT

... THYL ... (1435 elements)

BISMUTHYL · BUTHYL · FLUOROTHYL · FLUROTHYL · MACROTHYLACIA · SKOTHYLKI · SPHAEROTHYLAX · TERBUTHYLAZIN · TERBUTHYLAZINE · THYL

... ETHYLF ... (15 elements)

ALPHAMETHYLFENTANYL · DIMETHYLFORMAMID · DIMETHYLFORMAMIDE · DIMETHYLFURAN · HYDROXYMETHYLFURFURAL

... THYLFE ... (2 elements)

ALPHAMETHYLFENTANYL · METHYLFENIDAAT

... THYLFL ... (1 element)

METHYLFLUORPREDNISOLONE

... THYLFO ... (9 elements)

DIMETHYLFORMAMID · DIMETHYLFORMAMIDE · ETHYLFORMIAT · METHYLFOLATE · METHYLFORMAMID

... THYLFU ... (3 elements)

DIMETHYLFURAN · HYDROXYMETHYLFURFURAL