This invention finds application in the field of the devices and methods forphysical or chemical mixing of products and particularly relates to acartridge for storage and sterile delivery of a two-phase compound. Thecartridge comprises a first tubular member (2) which defines a first chamber(3) for storage of a solid phase, having a bottom wall (6) with an opening (7)for the passage of the compound, a second tubular member (9) which defines asecond hermetically sealed chamber (12) for storage of a liquid phase, and apiston which sealably slides within the first tubular member (2), means (8)for occluding said opening (7) which comprise at least one rupturable membrane(15) associated to the bottom wall (6).
