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Unnatural amino acids


Amino Acids are the feedstock for peptide and peptoid derivatives. Un-natural analogues are useful to explore protein structure activity relationships; in many cases they give rise to peptidomimetics with increased proteolytic stability. At the EnamineStore you will find a wide range of alpha aminoacids and examples of beta and gamma analogues, many incorporate features such as adamantly, cyclo-butyl, and spiro-systems along with heterocyclic ring systems including tetrazoles and imidazoles. Moreover, there are numerous examples of appropriate protecting groups: include Fmoc, Boc, and Bn for the amine group and tBu, Bn, Me and Et esters. See examples below:

Search returned 577 hits.

StructureProduct infoAvailabilityQuantity / Price
Catalog IDEN300-6479762
Product class Building Block
Namerac-(2R,4S)-4-methylazetidine-2-carboxylic acid, trans
ACD numberMFCD31700188
CAS number2237226-49-0
Formula
MW115.1
CLogP-2.453
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-1709414
Product class Building Block
Name4-METHYLAZETIDINE-2-CARBOXYLIC ACID
ACD numberMFCD24498411
CAS number1779725-63-1
Formula
MW115.1
CLogP-2.453
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-156431
Product class Building Block
Name3-aminooxetane-3-carboxylic acid
ACD numberMFCD12547198
CAS number138650-24-5
Formula
MW117.1
CLogP-2.26
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-75038
Product class Building Block
Name3-aminooxolane-3-carboxylic acid
ACD numberMFCD08460976
CAS number125218-55-5
Formula
MW131.1
CLogP-1.632
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:0.4 g(5 business days)   EU Rush delivery : (2 business days)
1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-6477839
Product class Building Block
Namerac-(2R,3S)-3-fluoropyrrolidine-2-carboxylic acid, trans
ACD numberMFCD32066778
CAS number2199280-76-5
Formula
MW133.1
CLogP-2.62
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   EU Rush delivery : (2 business days)
1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 gUSA Rush delivery(2 business days)
available in New Jersey stock : 3x0.001 g, 3x0.002 g, 3x0.005 g, 3x0.01 g, 3x0.02 g, 3x0.025 g, 3x0.05 g, 3x0.1 g, 3x0.25 g, 3x0.5 g, 3x1 g
Catalog IDEN300-65367
Product class Building Block
Name2-amino-4,4-difluorobutanoic acid
ACD numberMFCD12807562
CAS number107910-31-6
Formula
MW139.1
CLogP-2.549
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:0.4 g(5 business days)  
Catalog IDEN300-89783
Product class Building Block
Name4-amino-3,3-difluorobutanoic acid
ACD numberMFCD17977161
CAS number1258651-00-1
Formula
MW139.1
CLogP-1.825
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:0.7 g(5 business days)  
Catalog IDEN300-7439203
Product class Building Block
Namerac-(1R,2S)-2-(azetidin-3-yl)cyclopropane-1-carboxylic acid, trans
ACD numberMFCD32200037
CAS number2377004-69-6
Formula
MW141.2
CLogP-2.867
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-761743
Product class Building Block
Namerac-(1R,5R)-3-azabicyclo[3.2.0]heptane-1-carboxylic acid
ACD numberMFCD31542435
CAS number2137560-16-6
Formula
MW141.2
CLogP-2.018
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:8.1 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-173114
Product class Building Block
Name2-amino-2-(1H-1,2,3,4-tetrazol-5-yl)acetic acid
ACD numberMFCD00233633
CAS number138199-51-6
Formula
MW143.1
CLogP-4.3
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:9.3 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-135332
Product class Building Block
Namerac-(1s,4s)-4-aminocyclohexane-1-carboxylic acid, cis
ACD numberMFCD00191730
CAS number3685-23-2
Formula
MW143.2
CLogP-2.42
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.25 g, 1x0.5 g, 1x1 g, 1x2.5 g, 1x5 g
Catalog IDEN300-88021
Product class Building Block
Name2-amino-2-(oxolan-3-yl)acetic acid
ACD numberMFCD01859912
CAS number1169930-49-7
Formula
MW145.2
CLogP-2.599
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   EU Rush delivery : (2 business days)
1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 gUSA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-71856
Product class Building Block
Namerac-(1r,3r)-3-aminocyclobutane-1-carboxylic acid hydrochloride, trans
ACD numberMFCD17019506
CAS number84182-60-5
Formula
MW151.6
CLogP-2.494
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:5.2 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-313432
Product class Building Block
Name2-amino-3-(1H-pyrrol-1-yl)propanoic acid
ACD numberMFCD22069907
CAS number7723-30-0
Formula
MW154.2
CLogP-1.504
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)  
Catalog IDEN300-843872
Product class Building Block
Namerac-methyl (1R,5R)-3-azabicyclo[3.2.0]heptane-1-carboxylate, cis
ACD numberMFCD32633663
CAS number2137649-44-4
Formula
MW155.2
CLogP0.773
Storage conditions-10
Transport conditionsIce pack
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-332740
Product class Building Block
Namerac-(3aR,6aR)-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid
ACD numberMFCD14279176
CAS number1212067-49-6
Formula
MW155.2
CLogP-1.459
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g, 1x2.5 g, 1x5 g
Catalog IDEN300-123488
Product class Building Block
Name3-amino-2-methoxypropanoic acid hydrochloride
ACD numberMFCD23144103
CAS number1427379-00-7
Formula
MW155.6
CLogP-3.323
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-1477614
Product class Building Block
Name6-ETHYLPIPERIDINE-2-CARBOXYLIC ACID
ACD numberMFCD26045085
CAS number1037471-93-4
Formula
MW157.2
CLogP-0.806
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-6526688
Product class Building Block
Name4-amino-2-fluorobutanoic acid hydrochloride
ACD numberMFCD24396441
CAS number26437-22-9
Formula
MW157.6
CLogP-3.098
Storage conditionsRT
Transport conditionsNormal
See details
Purity: 95%Global stock:> 10 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.001 g, 1x0.002 g, 1x0.005 g, 1x0.01 g, 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-313982
Product class Building Block
Name(2S,3R)-2-amino-3-fluorobutanoic acid hydrochloride
ACD numberMFCD30476281
CAS number2044705-45-3
Formula
MW157.6
CLogP-2.922
Storage conditions+4
Transport conditionsNormal
See details
Purity: 95%Global stock:2.0 g(5 business days)   USA Rush delivery(2 business days)
available in New Jersey stock : 2x0.001 g, 2x0.002 g, 2x0.005 g, 2x0.01 g, 2x0.02 g, 2x0.025 g, 2x0.05 g, 2x0.1 g, 2x0.25 g, 2x0.5 g, 2x1 g
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