We have recently moved to the C4 corridor rooms C452-C458 in the "Arrheniuslaboratoriet". The physical adress is Svante Arrhenius väg 16E. and it is located at the green dot at the map below. Can be found at a href=http://maps.google.se/maps/place?cid=8733956602163028230&q=Arrheniuslaboratoriet&hl=sv&sll=61.606396,21.225586&sspn=25.627731,56.513672&ie=UTF8&ll=71.856229,-6.943359&spn=0.027349,0.087891&t=m&z=4&vpsrc=0>Google Maps
To get here you should take the red line of the subway to "Universitetet" and at the exit you shoud take the left path. On your left you will have a new green building (Geovetarhuset). The second building (A huge grey building) to the left is Arrheniuslaboratoriet. You can also take buss number 40.
Unfortunately CBR rooms are a bit in the back but the easiest way to get here is to follow the signs towards "Magnelisalen" at the third (entrance) floor and then when you enter the crossing you walk one floor up and there we are.
Alternatively the department of biochemistry and biophysics is also on the fourth floor (one floor above the main entrance). And there you could knock on the door and ask the secretaries that are close to the entrance to call for, or me alternatively you use the entry phone and call Arne on 4672 and I will open the door to the corridor.
Here is a map to Arrheniuslaboratoriet