Collection: N-Protected Amino Acids

N-Protected Amino Acids — contains amino acids whose amino groups have been protected with groups such as Boc, Fmoc, Cbz, or Alloc, so that their reactivity can be selectively controlled during the sequential peptide bond formation stage in both solid-phase and solution synthesis.

These N-Protected Amino Acids serve as the basic building blocks of solid-phase peptide synthesis (SPPS) and solution-phase synthesis, where the protecting groups are removed stepwise to control the sequence of residue coupling. Peptide chemistry researchers use them to assemble long peptide chains, including cyclic and modified peptides, while maintaining the integrity of side chains during amino acid activation and coupling.

Example products in this collection: TCI A0100 1115-47-5 N-Acetyl-DL-methionine, TCI B5537 96099-84-2 N-(tert-Butoxycarbonyl)-D-threonine Methyl Ester, TCI A0105 10172-89-1 N-Acetyl-D-phenylalanine, TCI B5684 51513-80-5 6-[(tert-Butoxycarbonyl)amino]hexanoic Acid N-Succinimidyl Ester, TCI A0118 36546-50-6 N-Acetyl-L-tyrosine Ethyl Ester Monohydrate, TCI B5735 20898-44-6 tele-Benzyl-Nalpha-(tert-butoxycarbonyl)-L-histidine, TCI A0119 2280-01-5 N-Acetyl-D-tryptophan, TCI B5857 114676-69-6 N-(tert-Butoxycarbonyl)-cis-4-hydroxy-D-proline Methyl Ester.

Choose the type of protecting group according to the orthogonal strategy being used (Boc/Bzl or Fmoc/tBu), and pay attention to purity and stereochemical configuration so that they match the peptide synthesis protocol being planned. All products are authentic products of Tokyo Chemical Industry (TCI) Japan, with purity, packaging, and storage conditions listed on the page of each item.

Other categories at the same level under Amino Acid Derivatives [Peptide Chemistry], often used together in one laboratory workflow:

• Proteinogenic Amino Acids
• Side Chain Protected Amino Acids (N,C-termini Free)

Back to Amino Acid Derivatives [Peptide Chemistry]. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official TCI Japan distributor in Indonesia — to check availability and lead time directly from Japan.