The Lawson Number is related to the physical location of the compounds in the Beilstein Handbook of
Organic Chemistry. The Lawson Number is approximately equal to 8 times the Beilstein System Number. Since the
system number classifies organic compounds according to structure, the Lawson Number offers a way to incorporate
into an online search strategy the fact that a group of compounds are structurally similar. Click on a number range to
pop up a description of the types of compounds included in that range. Use the drop-down navigation menu to jump to
a part of the table of interest.