The invention relates to a biopharmaceutical container comprising: a connector to be secured to a chamber connector； a bag serving as a receptacle, one part of which is secured to the connector； and a flexible tube tucked inside the bag, which tube can extend out from the bag through the connector. The biopharmaceutical container, wherein: the tube forms part of the bag, the tube is a neck of reduced size extending from the body of the bag, and the aforementioned part of the bag that is secured to the connector is a fold in the wall of the bag, said wall of the bag forming the body of the bag on one side of the fold and the tube on the other side of the fold.
