IMPACT Supporting AS and A2 Scientists http://www.surrey.ac.uk/IMPACT/ "CIS" - now with added C13 NMR Carbon-13 spectra now added to CIS database http://www.surrey.ac.uk/IMPACT/cis/ Synthesis Explorer Online synthetic chemistry route planner. http://synthetic.chem.surrey.ac.uk/ "Energetics" now includes entropy and free energy Additional information for 2008 specifications. http://www.surrey.ac.uk/IMPACT/flexible/ Order form and price list Download IMPACT order form and price list. http://www.surrey.ac.uk/IMPACT/download/orderform.pdf "A2 Aliphatic" Flexible Learning Pack For A2 organic chemistry. http://www.surrey.ac.uk/IMPACT/flexible/ "Alcohols and Halogenoalkanes" Flexible Learning Pack For AS organic chemistry. http://www.surrey.ac.uk/IMPACT/flexible/ "Atomic Structure" now includes atom economy Additional information for 2008 specifications. http://www.surrey.ac.uk/IMPACT/flexible/