containing two hetero atoms, of which at least one is nitrogen

Full Title

Accessory food factors for animal feeding-stuffs > Organic substances > Heterocyclic compounds > containing two hetero atoms, of which at least one is nitrogen

Classification Context

Section:

HUMAN NECESSITIES

Class:

FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; PREPARATION, TREATMENT OR PRESERVATION THEREOF

Subclass:

FEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF