General Protected Amino Acids

General Protected Amino Acids

General protected amino acids are used to temporarily block certain functional groups, such as amino or carboxyl groups, during synthesis to prevent unwanted reactions. These protective groups are added through chemical modification and help guide each step of the process more precisely. Once the target compound is assembled, the protecting groups are removed under controlled conditions, allowing the amino acid or peptide to return to its active form. This method is widely applied in peptide synthesis to support accurate and efficient chain formation.
Fmoc-Arg(pbf)-OH
CAS No.: 154445-77-9
Fmoc-Arg(pbf)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptides, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-His(Trt)-OH
CAS No.: 109425-51-6
Fmoc-L-His(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptides, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-Gly-OH
CAS No.: 29022-11-5
Fmoc-Gly-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptides, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Glu(OtBu)-OH
CAS No.: 71989-18-9
Fmoc-L-Glu(OtBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptides, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Thr(tBu)-OH
CAS No.: 71989-35-0
Fmoc-L-Thr(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Phe-OH
CAS No.: 35661-40-6
Fmoc-L-Phe-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Ser(tBu)-OH
CAS No.: 71989-33-8
Fmoc-L-Ser(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications GLP-1 peptide synthesis, polypeptide APIs, Semaglutide and Tirzepatide production
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Fmoc-L-Asp(OtBu)-OH
CAS No.: 71989-14-5
Fmoc-L-Asp(OtBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Leu-OH
CAS No.: 35661-60-0
Fmoc-L-Leu-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Lys(Boc)-OH
CAS No.: 71989-26-9
Fmoc-L-Lys(Boc)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Gln(Trt)-OH
CAS No.: 132327-80-1
Fmoc-L-Gln(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Met-OH
CAS No.: 71989-28-1
Fmoc-L-Met-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Ala-OH
CAS No.: 35661-39-3
Fmoc-L-Ala-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Val-OH
CAS No.: 68858-20-8
Fmoc-L-Val-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Ile-OH
CAS No.: 71989-23-6
Fmoc-L-Ile-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-Gln-OH
CAS No.: 71989-20-3
Fmoc-Gln-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-Aib-OH
CAS No.: 94744-50-0
Fmoc-Aib-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Trp(Boc)-OH
CAS No.: 143824-78-6
Fmoc-L-Trp(Boc)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Asn(Trt)-OH
CAS No.: 132388-59-1
Fmoc-L-Asn(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Pro-OH
CAS No.: 71989-31-6
Fmoc-L-Pro-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Cys(Trt)-OH
CAS No.: 103213-32-7
Fmoc-L-Cys(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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Fmoc-L-Tyr(tBu)-OH
CAS No.: 71989-38-3
Fmoc-L-Tyr(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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CAS No.: 2389-45-9
Boc-L-Lys(Z)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Boc-Lys(Ivdde)-OH
CAS No.: 862847-44-7
Boc-Lys(Ivdde)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Lys(Ivdde)-OH
CAS No.: 919281-76-8
H-Lys(Ivdde)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Lys(Ivdde)-OH
CAS No.: 204777-78-6
Fmoc-Lys(Ivdde)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Boc-Lys(dde)-OH
CAS No.: 444795-66-8
Boc-Lys(dde)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Lys(dde)-OH
CAS No.: 150629-67-7
Fmoc-Lys(dde)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Lys(Boc)-OH
CAS No.: 2418-95-3
H-Lys(Boc)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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BOC-L-Lysine
CAS No.: 13734-28-6
BOC-L-Lysine
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Ala-Gly-OH
CAS No.: 116747-54-7
Fmoc-Ala-Gly-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Boc-Gly-Pro-OH
CAS No.: 14296-92-5
Boc-Gly-Pro-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Val-Gly-OH
CAS No.: 142810-19-3
Fmoc-Val-Gly-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Pro-Pro-OH
CAS No.: 129223-22-9
Fmoc-Pro-Pro-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-Glu(OtBu)-Phe-OH
CAS No.: 1122076-55-4
Fmoc-Glu(OtBu)-Phe-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Lys(Z)-OBzL.HCl
CAS No.: 6366-70-7
H-Lys(Z)-OBzL.HCl
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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Fmoc-D-Arg(Pbf)
CAS No.: 187618-60-0
Fmoc-D-Arg(Pbf)
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Gln(Trt)-OH
CAS No.: 102747-84-2
H-Gln(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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N₆-Cbz-L-Lysine
CAS No.: 1155-64-2
N₆-Cbz-L-Lysine
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Ser(tBu)-OH
CAS No.: 18822-58-7
H-Ser(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Glu(OtBu)-OH
CAS No.: 2419-56-9
H-Glu(OtBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides
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H-Tyr(tBu)-OH
CAS No.: 18822-59-8
H-Tyr(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide
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H-Asp(OtBu)-OH
CAS No.: 3057-74-7
H-Asp(OtBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, Tirzepatide
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H-Thr(tBu)-OH
CAS No.: 4378-13-6
H-Thr(tBu)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for GLP-1 peptide synthesis and polypeptides
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Boc-Glycine
CAS No.: 4530-20-5
Boc-Glycine
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-D-Arg HCl
CAS No.: 35897-34-8
Boc-D-Arg HCl
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-D-Arg HCl.H2O
CAS No.: 113712-06-4
Boc-D-Arg HCl.H2O
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-L-Leu.H2O
CAS No.: 131139-15-6
Boc-L-Leu.H2O
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-Glycine tert-butyl ester
CAS No.: 111652-20-1
Boc-Glycine tert-butyl ester
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API intermediates
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Z-Gln(Trt)-OH
CAS No.: 132388-60-4
Z-Gln(Trt)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-beta-Alanine
CAS No.: 3303-84-2
Boc-beta-Alanine
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API development
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Boc-L-Pyroglutamic acid ethyl ester/Boc-Pyr-Oet
CAS No.: 144978-12-1
Boc-L-Pyroglutamic acid ethyl ester/Boc-Pyr-Oet
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API intermediates
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Boc-L-Pyroglutamic acid methyl ester
CAS No.: 108963-96-8
Boc-L-Pyroglutamic acid methyl ester
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and pharmaceutical intermediates
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Boc-Arg(NO₂)-OH
CAS No.: 2188-18-3
Boc-Arg(NO₂)-OH
  • Packaging 25 kg / fibre drum
  • Applications Raw material for peptide synthesis and API intermediates
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Peptides are used in treating viral infections such as hepatitis, HIV, and SARS. Some can target cancer cells by binding to specific tumor markers or mimicking signaling molecules. Others are derived from natural sources to address cardiovascular conditions, offering a wide range of therapeutic potential.

Longer peptides tend to be more difficult to purify and synthesize due to lower yield and stability. In these cases, auxiliary amino acids may be added at the ends to improve solubility and handling. For shorter peptides, typically under five residues, adding hydrophobic amino acids can enhance structural integrity and functionality.

Bioactive peptides are gaining popularity in functional food and nutrition sectors. These peptides can help regulate physiological processes, support immune health, and delay the onset of chronic diseases. Common sources include dairy proteins, plant extracts, collagen, and marine or animal-derived peptides.

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