Automatic analyzer

An automatic analyzer, comprising:

• a first reagent accommodation unit including a first reagent container with an opening on an upper side;
• a second reagent accommodation unit including a second reagent container with an opening on an upper side;
• a first shaft and a second shaft;
• a first arm coupled to the first shaft at a proximal end of the first arm that rotates centering around the first shaft;
• a dispensing nozzle coupled to a distal end of the first arm;
• a first tip of the first arm extending to the upper side of the first reagent container;
• a second arm coupled to the second shaft at a proximal end of the second arm that rotates centering around the second shaft;
• and
• a stirring rod coupled to a distal end of the second arm;
• a second tip of the second arm extending to the upper side of the second reagent container, wherein
• the first reagent accommodation unit and the second reagent accommodation unit are positioned adjacent each other,
• the first tip is configured to access the first reagent accommodation unit,
• the second tip is configured to access the second reagent accommodation unit,
• a distance between the first shaft and the second shaft is shorter than a length of the first arm and of the second arm in a longitudinal direction, and
• a recess is formed on a side that is closer to the first tip of the first arm than the first shaft and that faces the second arm.