This invention relates to compounds suitable for labelling or already labelled by 18F, methods of preparing such a compound, compositions comprising such compounds, kits comprising such compounds or compositions and uses of such compounds, compositions or kits for diagnostic imaging. The tub is formed of a rear half-shell and a front half-shell made of plastic and coupled to one another in a watertight manner. The network part receives the message and allocates default radio resources and informs the allocated resources to the terminal. The seat is rotatably mounted in the mounting barrel and has a shaft hole, two gear recesses and a connecting axle. The server locates and retrieves the object requested. Through this type of eccentric disposition and simultaneous realization of the peripheral surface, the housing can be realized without undercuts and nonetheless precise dosing can be achieved in the case of small pivot angles.