Is it der, die or das Ptyalin?

Why is it das Ptyalin?

Ptyalin ends in -in. Most nouns with this ending are feminine (88% take die), but Ptyalin is an exception: das Ptyalin.

Sense 1

das

[1] Ferment of saliva, which splits starch through hydrolysis in maltose and thus makes carbohydrate food digestible

[1] Ferment des Speichels, das Stärke durch Hydrolyse in Maltose spaltet und so die Kohlehydratnahrung verdaulich macht

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Dictionary entries include material from Wiktionary. Wiktionary