The present invention relates to a RFID tag for arrangement on a bottle for blood-derived products, said bottle comprising a main body, the upper end of which comprises a neck, said bottle being hermetically sealed by a cap arranged in the upper portion of said neck, the upper portion of said cap comprising at least two through-pipes and at least two stiffening ribs that are each connected to said pipes by one of the respective ends thereof. Said RFID tag comprises at least two openings shaped to fit each of the through-pipes, respectively, of the cap such that said RFID tag is positioned on the upper surface of the cap and thus overcomes the obstacle of said through-pipes and the respective stiffening ribs.
