Abstract: The invention relates to a storage and dispensing vessel for microsystems and to a method for storing and dispensing a liquid. It is the object of the invention to be able to store a liquid with volatile and/or creeping substances in very small vessels over many months, preferably over at least one year, and to be able to dispense it automatically with comparatively little technical effort. For accomplishing this object, a bellows configured as a vessel is provided which is sealed, preferably welded, in an air-tight and liquid-tight manner once the bellows vessel has been filled. This bellows vessel at the same time serves as a dispensing vessel. The vessel can be emptied automatically with relatively simple means. For this purpose, it is, for example, clamped into a device which compresses the bellows, namely in the direction of a hollow needle—also referred to as cannula or hypodermic needle—or of a comparable means. In the process, the hollow needle or the comparable means pierces a vessel wall.