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Unnatural Amino Acids ($270 - $2,700) Click the link on the table below

Product#: FNK-DN000

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Unnatural amino acids

More than 100 unnatural amino acids are available. Unnatural amino acids show wide variety of effects such as improvement of physiological activity, metabolism, solubility and stability. These useful effects attract attention from researchers who study drug discovery.

List (please, click on the list table)

α-AlkenylAla	α-AlkynylAla	α-AlkenylGly	α-AlkynylGly	α, α-DialkenylGly
Aspartic acid (Asp) derivative	Asparagine (Asn) derivative	Cysteine (Cys) derivative	Leucine (Leu) derivative	Lysine (Lys) derivative
Ornithine (Orn) derivative	Phenylalanin (Phe) derivative	Proline (Pro) derivative	Serine (Ser) derivative	\
Threonine(Thr) derivative	Tryptophan (Trp) derivative	Tyrosine (Tyr) derivative	Valine (Val) derivative	\

■ α-AlkenylAla

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJJAA	(S)-α-Allylalanine•H₂O	(S)-α-AllylAla•H₂O	?98.0％	96886-55-4	C₆H₁₁NO₂•H₂O	147.17
FNK-FN-JJJBA	(R)-α-Allylalanine•H₂O	(R)-α-AllylAla•H₂O	?98.0％	96886-56-5	C₆H₁₁NO₂•H₂O	147.17
FNK-FN-JJJEA	(R)-N-Boc-α-Allylalanine ethyl ester	(R)-N-Boc-α-AllylAla-OEt	?98.0％	1263046-12-3	C₁₃H₂₃NO₄	257.33
FNK-FN-JJJHA FNK-FN-JJJHE	(S)-α-(4-Pentenyl)alanine tert-butyl ester p-Nitrobenzoate	(S)-α-(4-Pentenyl)Ala-OtBu p-Nitrobenzoate	?98.0％	1323987-70-7	C₁₂H₂₃NO₂•C₇H₅NO₄	380.44
FNK-FN-JJJIA FNK-FN-JJJIE	(R)-α-(4-Pentenyl)alanine tert-butyl ester p-Nitrobenzoate	(R)-α-(4-Pentenyl)Ala-OtBu p-Nitrobenzoate	?98.0％	1323987-68-3	C₁₂H₂₃NO₂•C₇H₅NO₄	380.44
FNK-FN-JJABA FNK-FN-JJABE	(S)-α-(7-Octenyl)alanine tert-butyl ester p-Nitrobenzoate	(S)-α-(7-Octenyl)Ala-OtBu p-Nitrobenzoate	?98.0％	1375908-92-1	C₁₅H₂₉NO₂•C₇H₅NO₄	422.52
FNK-FN-JJACA FNK-FN-JJACE	(R)-α-(7-Octenyl)alanine tert-butyl ester p-Nitrobenzoate	(R)-α-(7-Octenyl)Ala-OtBu p-Nitrobenzoate	?98.0％	1375904-22-5	C₁₅H₂₉NO₂•C₇H₅NO₄	422.52

■ α-AlkynylAla

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJADA	(S)-α-Propargylalanine	(S)-α-PropargylAla		?98.0％	1231709-27-5	C₆H₉NO₂	127.14
FNK-FN-JJAEA	(R)-α-Propargylalanine	(R)-α-PropargylAla		?98.0％	403519-98-2	C₆H₉NO₂	127.14

■ α-AlkenylGly

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJBAE	(S)-α-Allylglycine	(S)-α-AllylGly	?98.0％	16338-48-0	C₅H₉NO₂	115.13
FNK-FN-JJBBE	(R)-α-Allylglycine	(R)-α-AllylGly	?98.0％	54594-06-8	C₅H₉NO₂	115.13
FNK-FN-JJBCA	(R)-N-Acetyl-α-Allylglycine	(R)-N-Acetyl-α-AllylGly	?98.0％	121786-40-1	C₇H₁₁NO₃	157.17
FNK-FN-JJBDB FNK-FN-JJBDC	(S)-N-Boc-α-Allylglycine Dicyclohexylamine salt	(S)-N-Boc-α-AllylGly Dicyclohexylamine salt	?98.0％	143979-15-1	C₁₀H₁₇NO₄•C₁₂H₂₃N	396.57
FNK-FN-JJBEE FNK-FN-JJBEB FNK-FN-JJBEC	(S)-α-Allylglycine ethyl ester p-Toluenesulfonate	(S)-α-AllylGly-OEt p-Toluenesulfonate	?97.0％	1231709-21-9	C₇H13NO₂•C₇H₈O₃S	315.39
FNK-FN-JJBFE FNK-FN-JJBFB FNK-FN-JJBFC	(R)-α-Allylglycine ethyl ester p-Toluenesulfonate	(R)-α-AllylGly-OEt p-Toluenesulfonate	?97.0％	1432914-51-6	C₇H13NO₂•C₇H₈O₃S	315.39

■ α-AlkynylGly

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJBGA	(S)-α-Propargylglycine	(S)-α-PropargylGyl		?98.0％	23235-01-0	C₅H₇NO₂	113.12
FNK-FN-JJBHA	(R)-α-Propargylglycine	(R)-α-PropargylGly		?98.0％	23235-03-2	C₅H₇NO₂	113.12

■ α, α-DialkenylGly

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJBIA	N-Fmoc-α,α-Bis(4-pentenyl)glycine	N-Fmoc-α,α-Bis(4-pentenyl)Gly		?98.0％	1068435-19-7	C₂₇H₃₁NO₄	433.55

■ Alanine (Ala) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJCJA FNK-FN-JJCJE	(S)-α-Ethylalanine•H₂O	(S)-α-EtAla•H₂O	?98.0％	595-40-4	C₅H₁₁NO₂•H₂O	135.16
FNK-FN-JJCAA FNK-FN-JJCAE	(R)-α-Ethylalanine•H₂O	(R)-α-EtAla•H₂O	?98.0％	3059-97-0	C₅H₁₁NO₂•H₂O	135.16
FNK-FN-JJCBA FNK-FN-JJCBE	(S)-N-Boc-α-Ethylalanine	(S)-N-Boc-α-EtAla	?98.0％	151171-11-8	C₁₀H₁₉NO₄	217.27
FNK-FN-JJCCA FNK-FN-JJCCE	(R)-N-Boc-α-Ethylalanine	(R)-N-Boc-α-EtlAla	?98.0％	123254-58-0	C₁₀H₁₉NO₄	217.27
FNK-FN-JJCDA FNK-FN-JJCDE	(S)-N-Fmoc-α-Ethylalanine	(S)-N-Fmoc-α-EtAla	?98.0％	857478-30-9	C₂₀H₂₁NO₄	339.39
FNK-FN-JJCEA FNK-FN-JJCEE	(R)-N-Fmoc-α-Ethylalanine	(R)-N-Fmoc-α-EtAla	?98.0％	1231709-22-0	C₂₀H₂₁NO₄	339.39

■ Aspartic acid (Asp) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJDJA	(S)-α-Methylaspartic acid	(S)-α-MeAsp	?98.0％	3227-17-6	C₅H₉NO₄	147.13
FNK-FN-JJDAA	(R)-α-Methylaspartic acid	(R)-α-MeAsp	?98.0％	14603-76-0	C₅H₉NO₄	147.13
FNK-FN-JJDBA FNK-FN-JJDBE	(S)-α-Methylaspartic acid-4-tert-butyl ester	(S)-α-MeAsp-4-OtBu	?98.0％	1217977-71-3	C₉H₁₇NO₄	203.24
FNK-FN-JJDCA FNK-FN-JJDCE	(R)-α-Methylaspartic acid-4-tert-butyl ester	(R)-α-MeAsp -4-OtBu	?98.0％	1231709-25-3	C₉H₁₇NO₄	203.24
FNK-FN-JJDDA FNK-FN-JJDDE	(S)-N-Fmoc-α-Methylaspartic acid-4-tert-butyl ester	(S)-N-Fmoc-α-MeAsp-4-OtBu	?98.0％	1072845-47-6	C₂₄H₂₇NO₆	425.48
FNK-FN-JJDEA FNK-FN-JJDEE	(R)-N-Fmoc-α-Methylaspartic acid-4-tert-butyl ester	(R)-N-Fmoc-α-MeAsp-4-OtBu	?98.0％	1231709-26-4	C₂₄H₂₇NO₆	425.48

■ Asparagine (Asn) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJDFA FNK-FN-JJDFE	(S)-N-Fmoc-α-Methylasparagine	(S)-N-Fmoc-α-MeAsn		?98.0％	1403590-49-7	C₂₀H₂₀N₂O₅	368.39
FNK-FN-JJDGA FNK-FN-JJDGE	(R)-N-Fmoc-α-Methylasparagine	(R)-N-Fmoc-α-MeAsn		?98.0％	1403590-50-0	C₂₀H₂₀N₂O₅	368.39

■ Cysteine (Cys) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJDHA FNK-FN-JJDHE	(R)-L-α-Methylcysteine•HCl	(R)-L-α-MeCys•HCl	?98.0％	148766-37-4	C₄H₉NO₂S•HCl	171.65
FNK-FN-JJDIC FNK-FN-JJDIA	(S)-D-α-Methylcysteine•HCl	(S)-D-α-MeCys•HCl	?98.0％	151062-55-4	C₄H₉NO₂S•HCl	171.65
FNK-FN-JACDA	(R)-L-N-Fmoc-S-Trt-α-Methylcysteine	(R)-L-N-Fmoc-S-Trt-α-MeCys	?98.0％	725728-43-8	C₃₈H₃₃NO₄S	599.74

■ Leucine (Leu) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJEEA	(S)-α-Methylleucine	(S)-α-MeLeu		?98.0％	105743-53-1	C₇H₁₅NO₂	145.20
FNK-FN-JJEFA	(R)-α-Methylleucine	(R)-α-MeLeu		?98.0％	29589-03-5	C₇H₁₅NO₂	145.20

■ Lysine (Lys) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJFAA FNK-FN-JJFAE	(S)-Nα-Fmoc-Nω-Boc-α-Methyllysine	(S)-Nα-Fmoc-Nω-Boc-α-MeLys	?98.0％	1202003-49-3	C₂₇H₃₄N₂O₆	482.58
FNK-FN-JJFBA FNK-FN-JJFBE	(R)-Nα-Fmoc-Nω-Boc-α-Methyllysine	(R)-Nα-Fmoc-Nω-Boc-α-MeLys	?98.0％	1315449-94-5	C₂₇H₃₄N₂O₆	482.58
FNK-FN-JJFCA	(S)-Nα-Fmoc-Nω-Alloc-α-Methyllysine	(S)-Nα-Fmoc-Nω-Alloc-α-MeLys	?98.0％	1934266-47-3	C₂₆H₃₀N₂O₆	466.53

■ Ornithine (Orn) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJFEA FNK-FN-JJFEE	(S)-Nα-Fmoc-Nδ-Boc-α-Methylornithine	-		?98.0％	1315449-95-6	C₂₆H₃₂N₂O₆	468.55
FNK-FN-JJFFA FNK-FN-JJFFE	(R)-Nα-Fmoc-Nδ-Boc-α-Methylornithine	-		?98.0％	171860-40-5	C₂₆H₃₂N₂O₆	468.55

■ Phenylalanin (Phe) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJFHA FNK-FN-JJFHE	(S)-α-Methylphenylalanine•H₂O	(S)-α-MePhe•H₂O	?98.0％	23239-35-2	C₁₀H₁₃NO₂•H₂O	197.23
FNK-FN-JJFIA FNK-FN-JJFIE	(R)-α-Methylphenylalanine•H₂O	(R)-α-MePhe•H₂O	?98.0％	17350-84-4	C₁₀H₁₃NO₂•H₂O	197.23
FNK-FN-JJGJA FNK-FN-JJGJE	(S)-N-Fmoc-α-Methylphenylalanine•3/2H₂O	(S)-N-Fmoc-α-MePhe•3/2H₂O	?98.0％	135944-05-7	C₂₅H₂₃NO₄ •3/2H₂O	428.48
FNK-FN-JJGAA FNK-FN-JJGAE	(R)-N-Fmoc-α-Methylphenylalanine•3/2H₂O	(R)-N-Fmoc-α-MePhe•3/2H₂O	?98.0％	152436-04-9	C₂₅H₂₃NO₄ •3/2H₂O	428.48
FNK-FN-JJIBA FNK-FN-JJIBE	(S)-α-Methyl-3-fluorophenylalanine	-	?98.0％	130855-56-0	C₁₀H₁₂FNO₂	197.21
FNK-FN-JJICA FNK-FN-JJICE	(R)-α-Methyl-3-fluorophenylalanine	-	?98.0％	1270184-80-9	C₁₀H₁₂FNO₂	197.21
FNK-FN-JJIDA FNK-FN-JJIDE	(S)-α-Methyl-4-fluorophenylalanine	-	?98.0％	130855-57-1	C₁₀H₁₂FNO₂	197.21
FNK-FN-JJIEA FNK-FN-JJIEE	(R)-α-Methyl-4-fluorophenylalanine	-	?98.0％	422568-68-1	C₁₀H₁₂FNO₂	197.21
FNK-FN-JJIFA	(S)-N-Fmoc-α-Methyl-2-fluorophenylalanine	-	?98.0％	1172127-44-4	C₂₅H₂₂FNO₄	419.45
FNK-FN-JJIGA	(R)-N-Fmoc-α-Methyl-2-fluorophenylalanine	-	?98.0％	1315449-93-4	C₂₅H₂₂FNO₄	419.45
FNK-FN-JJIIA	(S)-N-Fmoc-α-Methyl-2,6-difluorophenylalanine	-	?98.0％	1223105-51-8	C₂₅H₂₁F₂NO₄	437.44
FNK-FN-JAJJA	(R)-α-Methyl-4-trifluoromethylphenylalanine ethyl ester•HCl•H₂O	-	?98.0％	1315449-99-0	C₁₃H₁₆F₃NO₂•HCl•H₂O	329.75
FNK-FN-JAJAA FNK-FN-JAJAE	(S)-α-Methyl-4-trifluoromethoxyphenylalanine	-	?98.0％	1269926-90-0	C₁₁H₁₂F₃NO₃	263.22
FNK-FN-JAJBA FNK-FN-JAJBE	(R)-α-Methyl-4-trifluoromethoxyphenylalanine	-	?98.0％	1269835-58-6	C₁₁H₁₂F₃NO₃	263.22
FNK-FN-JAJCA	(S)-α-Methyl-2-bromophenylalanine•H₂O	-	?98.0％	1212180-27-2	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJDA	(R)-α-Methyl-2-bromophenylalanine•H₂O	-	?98.0％	1212307-90-8	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJEA	(S)-α-Methyl-3-bromophenylalanine•H₂O	-	?98.0％	1212117-73-1	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJFA	(R)-α-Methyl-3-bromophenylalanine•H₂O	-	?98.0％	1212321-90-8	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJGA	(S)-α-Methyl-4-bromophenylalanine	-	?98.0％	747397-27-9	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJHA	(R)-α-Methyl-4-bromophenylalanine	-	?98.0％	752971-41-8	C₁₀H₁₂BrNO₂•H₂O	276.13
FNK-FN-JAJIA	(S)-α-Methyl-3-iodophenylalanine•H₂O	-	?98.0％	457653-01-9	C₁₀H₁₂INO₂•H₂O	323.13
FNK-FN-JAAJA	(R)-α-Methyl-3-iodophenylalanine•H₂O	-	?98.0％	457652-83-4	C₁₀H₁₂INO₂•H₂O	323.13
FNK-FN-JAAAA	(S)-α-Methyl-4-iodophenylalanine	-	?98.0％	1215092-16-2	C₁₀H₁₂INO₂•H₂O	323.13
FNK-FN-JAABA	(R)-α-Methyl-4-iodophenylalanine	-	?98.0％	1241679-14-0	C₁₀H₁₂INO₂•H₂O	323.13
FNK-FN-JAAIA	(S)-α-Methyl-2-nitrophenylalanine•H₂O	-	?98.0％	1241680-71-6	C₁₀H₁₂N₂O₄•H₂O	242.23
FNK-FN-JABJA	(R)-α-Methyl-2-nitrophenylalanine•H₂O	-	?98.0％	1241680-73-8	C₁₀H₁₂N₂O₄•H₂O	242.23
FNK-FN-JABAA	(S)-α-Methyl-3-nitrophenylalanine•H₂O	-	?98.0％	1215092-14-0	C₁₀H₁₂N₂O₄•H₂O	242.23
FNK-FN-JABBA	(R)-α-Methyl-3-nitrophenylalanine•H₂O	-	?98.0％	1215092-13-9	C₁₀H₁₂N₂O₄•H₂O	242.23
FNK-FN-JAAGA	(S)-α-Methyl-β-(4-biphenyl)alanine•H₂O	-	?98.0％	1231709-24-2	C₁₆H₁₇NO₂•H₂O	273.33

■ Proline (Pro) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJGBA FNK-FN-JJGBE	(S)-N-Boc-α-Methylproline	(S)-N-Boc-α-MePro	?98.0％	103336-06-7	C₁₁H₁₉NO₄	229.28
FNK-FN-JJGCA FNK-FN-JJGCE	(R)-N-Boc-α-Methylproline	(R)-N-Boc-α-MePro	?98.0％	166170-15-6	C₁₁H₁₉NO₄	229.28
FNK-FN-JJGDA FNK-FN-JJGDE	(S)-N-Fmoc-α-Methylproline	(S)-N-Fmoc-α-MePro	?98.0％	167275-47-0	C₂₁H₂₁NO₄	351.40
FNK-FN-JJGEA FNK-FN-JJGEE	(R)-N-Fmoc-α-Methylproline	(R)-N-Fmoc-α-MePro	?98.0％	1286768-33-9	C₂₁H₂₁NO₄	351.40

■ Serine (Ser) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJGFA	(S)-N-Fmoc-O-tert-Butyl-α-Methylserine	(S)-N-Fmoc-O-t-Bu-α-MeSer		?98.0％	914399-98-7	C₂₃H₂₇NO₅	397.47

■Threonine(Thr) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJGGA	(2S,3R)-α-Methylthreonine	(2S,3R)-α-MeThr		?98.0％	127126-06-1	C₅H₁₁NO₃	113.15

■ Tryptophan (Trp) derivative

Product code	Description	Another name	Structural formula	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJGHA	(S)-α-Methyltryptophan•1/2H₂O	(S)-α-MeTrp•1/2H₂O		?98.0％	16709-25-4	C₁₂H₁₄N2O₂•1/2H₂O	227.26
FNK-FN-JJGIA	(R)-α-Methyltryptophan•1/2H₂O	(R)-α-MeTrp•1/2H₂O		?98.0％	56452-52-9	C₁₂H₁₄N2O₂•1/2H₂O	227.26

■ Tyrosine (Tyr) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJHBA	(R)-α-Methyl-4-hydroxyphenylalanine	(R)-α-Methyltyrosine, (R)-α-MeTyr	?98.0％	672-86-6	C₁₀H₁₃NO₃	195.22
FNK-FN-JJHFA	(R)-3-Hydroxyphenylalanine	(R)-m-Tyrosine, (R)-m-Tyr	?98.0％	32140-49-1	C₉H₁₁NO₃	181.19
FNK-FN-JJHGA *Ask to inquiry	(R)-3-Methoxyphenylalanine•H₂O	(R)-O-Methyl-m-tyrosine•H₂O, (R)-OMe-m-Tyr•H₂O	?98.0％	145306-65-6	C₁₀H₁₃NO₃•H₂O	213.23

Product code

Description

Another name

Structural formula

Purity

CAS number

Molecular formula

Molecular weight

FNK-FN-JJHBA

(R)-α-Methyl-4-hydroxyphenylalanine

(R)-α-Methyltyrosine,
(R)-α-MeTyr

?98.0％

672-86-6

C₁₀H₁₃NO₃

195.22

FNK-FN-JJHFA

(R)-3-Hydroxyphenylalanine

(R)-m-Tyrosine,
(R)-m-Tyr

?98.0％

32140-49-1

C₉H₁₁NO₃

181.19

FNK-FN-JJHGA

*Ask to inquiry

(R)-3-Methoxyphenylalanine•H₂O

(R)-O-Methyl-m-tyrosine•H₂O,
(R)-OMe-m-Tyr•H₂O

?98.0％

145306-65-6

C₁₀H₁₃NO₃•H₂O

213.23

■ Valine (Val) derivative

Product code	Description	Another name	Purity	CAS number	Molecular formula	Molecular weight
FNK-FN-JJHHA	(S)-α-Methylvaline	(S)-α-MeVal	?98.0％	53940-83-3	C₆H₁₃NO₂	131.18
FNK-FN-JJHIA	(R)-α-Methylvaline	(R)-α-MeVal	?98.0％	53940-82-2	C₆H₁₃NO₂	131.18
FNK-FN-JJIJA	(S)-N-Fmoc-α-Methylvaline	(S)-N-Fmoc-α-MeVal	?98.0％	169566-81-8	C₂₁H₂₃NO₄	353.42
FNK-FN-JJIAA	(R)-N-Fmoc-α-Methylvaline	(R)-N-Fmoc-α-MeVal	?98.0％	616867-28-8	C₂₁H₂₃NO₄	353.42