Declension of the word "wirkstoff"

Singular and plural for Wirkstoff, m, strong declension     translation to English active substance, agent, active ingredient

Singular
Plural
Singular
Nominativ (Wer? Was?)
der Wirkstoff
die Wirkstoffe
Genitiv (Wessen?)
des Wirkstoffes / Wirkstoffs
der Wirkstoffe
Dativ (Wem?)
dem Wirkstoff / Wirkstoffe
den Wirkstoffen
Akkusativ (Wen? Was?)
den Wirkstoff
die Wirkstoffe
Plural
die Wirkstoffe
der Wirkstoffe
den Wirkstoffen
die Wirkstoffe
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