D 1462 (OTTO) Di-tert-butyl dicarbonate, 99% Cas 24424-99-5 - used for the introduction of BOC protecting group. It plays an important role in the preparation of 6-acetyl-1,2,3,4-tetrahydropyridine by reacting with 2-piperidone. It serves as a protecting group used in solid phase peptide synthesis.