Protected and unnatural amino acids
- Chemicals
- 2,942
- Suppliers
- 590
About protected and unnatural amino acids
Protected and unnatural amino acids are the building blocks of peptide synthesis and peptidomimetic drug discovery. The group covers Fmoc, Boc and Cbz protected amino acids with side chain protection such as tBu, Trt, Pbf and Boc groups, amino acid esters and amides, N-methyl amino acids, D-amino acids, beta and gamma amino acids, alpha,alpha-disubstituted amino acids, and amino acids with unusual side chains such as fluorinated, cyclic or click-ready groups.
Read more about protected and unnatural amino acidsShow less
Solid phase peptide synthesis for research peptides and for peptide drugs uses Fmoc amino acids in large volumes, and the growth of peptide medicines has made high purity grades a major market. Unnatural amino acids help chemists improve stability, potency and selectivity of peptides and small molecules.
Ask for purity by HPLC, enantiomeric purity (often 99.5 percent or higher for GMP peptide synthesis), free amino acid content, dipeptide and beta-alanine impurities in Fmoc derivatives, acetate content, water and residual solvents. GMP grades with change control are needed for commercial peptide APIs. Store most protected amino acids cold and dry.
Top protected and unnatural amino acids
Showing 1 to 48 of 2,942 chemicals, most searched and traded first.
PentagastrinCAS 5534-95-2C37H49N7O9S51 suppliers
MG-132CAS 133407-82-6C26H41N3O565 suppliers
AsunaprevirCAS 630420-16-5C35H46ClN5O9S13 suppliers
Z-Devd-fmkCAS 210344-95-9C30H41FN4O126 suppliers
Boc-3,4-difluoro-L-phenylalanineCAS 198474-90-7C14H17F2NO412 suppliers
CalpeptinCAS 117591-20-5C20H30N2O46 suppliers
Mdl-28170CAS 756485-04-8C22H26N2O42 suppliers
Cgp 42112ACAS 127060-75-7C52H69N13O111 supplier
Z-VAD-fmkCAS 187389-52-2C22H30FN3O79 suppliers
tert-ButoxycarbonylalanineCAS 15761-38-3C8H15NO434 suppliers
N-(tert-Butoxycarbonyl)glycineCAS 4530-20-5C7H13NO437 suppliers
Z-Pro-prolinalCAS 88795-32-8C18H22N2O4Request quotes
BenzyloxycarbonylglycineCAS 1138-80-3C10H11NO428 suppliers
Fmoc-leucineCAS 35661-60-0C21H23NO438 suppliers
(2R)-2-(((9H-Fluoren-9-ylmethoxy)carbonyl)amino)-4-methylpentanoic acidCAS 114360-54-2C21H23NO417 suppliers
1,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)-CAS 15761-39-4C10H17NO430 suppliers
1-Benzyl-4-(1-(1-carbamoyl-2-phenylethylcarbamoyl-3-methylbutylcarbamoyl)-2-hydroxy-5-phenylpentyl)carbamic acid tert-butyl esterCAS 292632-98-5C39H52N4O6Request quotes
epsilon-(Benzyloxycarbonyl)-L-lysineCAS 1155-64-2C14H20N2O418 suppliers
N-tert-Butoxycarbonyl-L-tryptophanCAS 13139-14-5C16H20N2O414 suppliers
L-Tyrosine, N-(1,1-dimethylethoxy)carbonyl-CAS 3978-80-1C14H19NO518 suppliers
DanoprevirCAS 850876-88-9C35H46FN5O9S6 suppliers
Benzyloxycarbonyl-L-phenylalanineCAS 1161-13-3C17H17NO420 suppliers
N-Benzyloxycarbonyl-DL-3-phenylalanineCAS 3588-57-6C17H17NO47 suppliers
N-(9H-(2,7-Dimethylfluoren-9-ylmethoxy)carbonyl)leucineCAS 132684-62-9C23H27NO4Request quotes
Benzyloxycarbonyl-L-prolineCAS 1148-11-4C13H15NO422 suppliers
MG-115CAS 133407-86-0C25H39N3O5Request quotes
Fmoc-Gly-OHCAS 29022-11-5C17H15NO436 suppliers
Z-IETD-fmkCAS 210344-98-2C30H43FN4O11Request quotes![L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]- chemical structure, C14H19NO4, CAS 13734-34-4](/s/ZYJPUMXJBDHSIF-NSHDSACASA-N.svg)
L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-CAS 13734-34-4C14H19NO428 suppliers
N-CarbobenzyloxyalanineCAS 1142-20-7C11H13NO424 suppliers
N-(Benzyloxycarbonyl)-L-serineCAS 1145-80-8C11H13NO59 suppliers![2-{[(tert-Butoxy)carbonyl]amino}-3-phenylpropanoic acid chemical structure, C14H19NO4, CAS 4530-18-1](/s/ZYJPUMXJBDHSIF-UHFFFAOYSA-N.svg)
2-{[(tert-Butoxy)carbonyl]amino}-3-phenylpropanoic acidCAS 4530-18-1C14H19NO48 suppliers
N-(Benzyloxycarbonyl)aspartic acidCAS 1152-61-0C12H13NO610 suppliers
Benzyloxycarbonyl-L-tryptophanCAS 7432-21-5C19H18N2O413 suppliers![1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid chemical structure, C10H17NO4, CAS 59433-50-0](/s/ZQEBQGAAWMOMAI-UHFFFAOYSA-N.svg)
1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acidCAS 59433-50-0C10H17NO49 suppliers
Benzyloxycarbonyl-asparagineCAS 2304-96-3C12H14N2O514 suppliers
N-tert-Butoxycarbonyl-L-aspartic acid beta-benzyl esterCAS 7536-58-5C16H21NO615 suppliers
Z-LEHD-fmkCAS 210345-04-3C32H43FN6O102 suppliers![N-[tert-Butoxycarbonyl]-L-serine chemical structure, C8H15NO5, CAS 3262-72-4](/s/FHOAKXBXYSJBGX-YFKPBYRVSA-N.svg)
N-[tert-Butoxycarbonyl]-L-serineCAS 3262-72-4C8H15NO518 suppliers
Benzyloxycarbonyl-L-arginineCAS 1234-35-1C14H20N4O410 suppliers![(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-[N'-(4-methoxy-2,3,6-trimethylbenzenesulfonyl)carbamimidamido]pentanoic acid chemical structure, C31H36N4O7S, CAS 120075-24-3](/s/LKGHIEITYHYVED-AREMUKBSSA-N.svg)
(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-[N'-(4-methoxy-2,3,6-trimethylbenzenesulfonyl)carbamimidamido]pentanoic acidCAS 120075-24-3C31H36N4O7S1 supplier
N-Carbobenzoyl-DL-valineCAS 3588-63-4C13H17NO49 suppliers
N-alpha-Benzyloxycarbonyl-L-lysineCAS 2212-75-1C14H20N2O49 suppliers
Danoprevir sodiumCAS 916826-48-7C35H45FN5NaO9SRequest quotes
(2S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-hydroxyphenyl)propanoic acidCAS 92954-90-0C24H21NO55 suppliers
1-(9H-Fluoren-9-ylmethyl) hydrogen (S)-pyrrolidine-1,2-dicarboxylateCAS 144829-96-9C20H19NO42 suppliers
L-Leucine, N-((1,1-dimethylethoxy)carbonyl)-CAS 13139-15-6C11H21NO420 suppliers
N-((9H-Fluoren-9-ylmethoxy)carbonyl)-L-alanineCAS 35661-39-3C18H17NO433 suppliers
Top suppliers of protected and unnatural amino acids
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New protected and unnatural amino acids from suppliers
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![4-[(tert-Butoxycarbonyl)amino]piperidine-4-carboxylic acid chemical structure, C11H20N2O4, CAS 252720-31-3](/s/RAENIWWUAIMXSI-UHFFFAOYSA-N-200.webp)
Latest buy requests for protected and unnatural amino acids
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- 1 quoteBetulinic acid5 kg+ 1 more products To Nigeria 8 d ago
- 1 quotePentagastrin25 kg To Kenya 8 d ago
- 1 quoteTumor Necrosis Factor-alpha1 kg+ 1 more products To IndiaMonthly need 8 d ago
- 0 quotesMG-1322 kg To Bangladesh 9 d ago
- 1 quotePentagastrin5 kg To IndiaQuarterly need 9 d ago
- 0 quotesGlucose monohydrate1 kg+ 3 more products To IndiaMonthly need 10 d ago
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Guides for buyers
Practical reading on grades, documents, regulation and shipping before you buy.
- Guide · Chemical identityCAS registry numbers explained
What a CAS number identifies, how the check digit works, why one chemical can have several numbers and what a CAS number cannot tell you about a product.
- Article · SourcingHow to write an RFQ that gets fast and accurate quotes
What suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.
- Guide · Trade and logisticsIncoterms 2020 for chemical buyers
The eleven Incoterms 2020 rules from a chemical buyer's point of view, with the traps around CIF insurance, FOB for containers, EXW exports, DDP imports and dangerous goods.
Frequently asked questions
Quick answers about buying protected and unnatural amino acids on CompoundList.
What are protected and unnatural amino acids?
Boc, Fmoc and Cbz protected amino acids and non-proteinogenic amino acids for peptide synthesis and drug discovery.
How many protected and unnatural amino acids are listed on CompoundList?
CompoundList lists 2,942 chemicals in protected and unnatural amino acids. 590 suppliers offer products in this category.
Which protected and unnatural amino acids are the most popular?
The most searched and traded protected and unnatural amino acids on CompoundList include Pentagastrin, MG-132, Asunaprevir, Z-Devd-fmk and Boc-3,4-difluoro-L-phenylalanine. They are part of the wider building blocks and research compounds family.
How do I buy protected and unnatural amino acids in bulk?
Open a chemical to compare its suppliers, or post one buy request with the product, grade, quantity and destination. Matching suppliers send you quotes, and your contact details stay private until you accept one.