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PYX

PYX
Name:	S-[S-THIOPYRIDOXAMINYL]CYSTEINE
Formula:	C11 H17 N3 O3 S2
SMILES:	O=C(O)C(N)CSSCc1cnc(c(O)c1CN)C
InChi:	InChI=1S/C11H17N3O3S2/c1-6-10(15)8(2-12)7(3-14-6)4-18-19-5-9(13)11(16)17/h3,9,15H,2,4-5,12-13H2,1H3,(H,16,17)/t9-/m0/s1
Definition date:	1999-07-08
Last modified:	2024-09-27
Identifier:	3-({[4-(aminomethyl)-5-hydroxy-6-methylpyridin-3-yl]methyl}disulfanyl)-L-alanine

GSH

GSH
Name:	GLUTATHIONE
Formula:	C10 H17 N3 O6 S
SMILES:	O=C(NCC(=O)O)C(NC(=O)CCC(C(=O)O)N)CS
InChi:	InChI=1S/C10H17N3O6S/c11-5(10(18)19)1-2-7(14)13-6(4-20)9(17)12-3-8(15)16/h5-6,20H,1-4,11H2,(H,12,17)(H,13,14)(H,15,16)(H,18,19)/t5-,6-/m0/s1
Definition date:	1999-07-08
Last modified:	2024-09-27
Identifier:	L-gamma-glutamyl-L-cysteinylglycine

R1A

R1A
Name:	3-{[(2,2,5,5-TETRAMETHYL-1-OXO-2,5-DIHYDRO-1H-PYRROLIUM-3-YL)METHYL]DISULFANYL}-D-ALANINE
Formula:	C12 H21 N2 O3 S2
SMILES:	O=C(O)C(N)CSSCC1=CC([N+](=O)C1(C)C)(C)C
InChi:	InChI=1S/C12H20N2O3S2/c1-11(2)5-8(12(3,4)14(11)17)6-18-19-7-9(13)10(15)16/h5,9H,6-7,13H2,1-4H3/p+1/t9-/m0/s1
Synonyms:	S-(THIOMETHYL-3-[2,2,5,5-TETRAMETHYL PYRROLINE-1-OXYL]) CYSTEINE
Definition date:	2005-06-03
Last modified:	2024-09-27
Identifier:	3-{[(2,2,5,5-tetramethyl-1-oxo-2,5-dihydro-1H-pyrrolium-3-yl)methyl]disulfanyl}-L-alanine

GYC

GYC
Name:	[(4Z)-2-[(1R)-1-AMINO-2-MERCAPTOETHYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC ACID
Formula:	C14 H15 N3 O4 S
SMILES:	O=C1C(N=C(N1CC(=O)O)C(N)CS)=Cc2ccc(O)cc2
InChi:	InChI=1S/C14H15N3O4S/c15-10(7-22)13-16-11(14(21)17(13)6-12(19)20)5-8-1-3-9(18)4-2-8/h1-5,10,18,22H,6-7,15H2,(H,19,20)/b11-5-/t10-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)
Definition date:	2006-05-30
Last modified:	2024-09-27
Identifier:	[(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1H-imidazol-1-yl]acetic acid

H0F

H0F
Name:	2-[(2~{S})-1-[(2~{S},3~{S})-3-methyl-2-(methylamino)pentanoyl]pyrrolidin-2-yl]ethanamide
Formula:	C13 H25 N3 O2
SMILES:	CC[CH](C)[CH](NC)C(=O)N1CCC[CH]1CC(N)=O
InChi:	InChI=1S/C13H25N3O2/c1-4-9(2)12(15-3)13(18)16-7-5-6-10(16)8-11(14)17/h9-10,12,15H,4-8H2,1-3H3,(H2,14,17)/t9-,10-,12-/m0/s1
Definition date:	2022-05-18
Last modified:	2024-09-27
Release date:	2022-06-29
Identifier:	2-[(2~{S})-1-[(2~{S},3~{S})-3-methyl-2-(methylamino)pentanoyl]pyrrolidin-2-yl]ethanamide

R74

R74
Name:	N~2~-[(2H-1,3-benzodioxol-5-yl)acetyl]-N-[(pyridin-4-yl)methyl]-L-cysteinamide
Formula:	C18 H19 N3 O4 S
SMILES:	O=C(C(CS)NC(Cc2ccc1OCOc1c2)=O)NCc3ccncc3
InChi:	InChI=1S/C18H19N3O4S/c22-17(8-13-1-2-15-16(7-13)25-11-24-15)21-14(10-26)18(23)20-9-12-3-5-19-6-4-12/h1-7,14,26H,8-11H2,(H,20,23)(H,21,22)/t14-/m0/s1
Definition date:	2020-02-04
Last modified:	2024-09-27
Release date:	2020-08-05
Identifier:	N~2~-[(2H-1,3-benzodioxol-5-yl)acetyl]-N-[(pyridin-4-yl)methyl]-L-cysteinamide

R7D

R7D
Name:	N~2~-{(2R)-2-hydroxy-2-[4-(trifluoromethyl)phenyl]acetyl}-N-[(pyridin-2-yl)methyl]-L-cysteinamide
Formula:	C18 H18 F3 N3 O3 S
SMILES:	SCC(C(NCc1ncccc1)=O)NC(C(c2ccc(cc2)C(F)(F)F)O)=O
InChi:	InChI=1S/C18H18F3N3O3S/c19-18(20,21)12-6-4-11(5-7-12)15(25)17(27)24-14(10-28)16(26)23-9-13-3-1-2-8-22-13/h1-8,14-15,25,28H,9-10H2,(H,23,26)(H,24,27)/t14-,15+/m0/s1
Definition date:	2020-02-04
Last modified:	2024-09-27
Release date:	2020-08-05
Identifier:	N~2~-{(2R)-2-hydroxy-2-[4-(trifluoromethyl)phenyl]acetyl}-N-[(pyridin-2-yl)methyl]-L-cysteinamide

HCS

HCS
Name:	2-AMINO-4-MERCAPTO-BUTYRIC ACID
Formula:	C4 H9 N O2 S
SMILES:	O=C(O)C(N)CCS
InChi:	InChI=1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)/t3-/m0/s1
Synonyms:	L-Homocysteine
Definition date:	2001-08-14
Last modified:	2024-09-27
Identifier:	L-homocysteine

KPY

KPY
Name:	(2R)-2-AZANYL-3-[2-[(E)-(1-OXIDANYL-1-OXIDANYLIDENE-PROPAN-2-YLIDENE)AMINO]ETHYLSULFANYL]PROPANOIC ACID
Formula:	C8 H14 N2 O4 S
SMILES:	O=C(O)C(N)CSCC/N=C(/C(=O)O)C
InChi:	InChI=1S/C8H14N2O4S/c1-5(7(11)12)10-2-3-15-4-6(9)8(13)14/h6H,2-4,9H2,1H3,(H,11,12)(H,13,14)/b10-5+/t6-/m0/s1
Synonyms:	PYRUVOYL-L-THIALYSINE
Definition date:	2012-02-03
Last modified:	2024-09-27
Release date:	2013-01-18
Identifier:	S-{2-[(E)-(1-carboxyethylidene)amino]ethyl}-L-cysteine

HNC

HNC
Name:	S-[(1S,2R)-2-hydroxy-1-(2-oxoethyl)heptyl]-L-cysteine
Formula:	C12 H23 N O4 S
SMILES:	O=C(O)C(N)CSC(C(O)CCCCC)CC=O
InChi:	InChI=1S/C12H23NO4S/c1-2-3-4-5-10(15)11(6-7-14)18-8-9(13)12(16)17/h7,9-11,15H,2-6,8,13H2,1H3,(H,16,17)/t9-,10+,11-/m0/s1
Synonyms:	Cysteine covalently modified with 4-hydroxy-2-nonenal
Definition date:	2009-09-17
Last modified:	2024-09-27
Identifier:	S-[(3S,4R)-4-hydroxy-1-oxononan-3-yl]-L-cysteine

KXV

KXV
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methoxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}ac etic acid
Formula:	C15 H17 N3 O5 S
SMILES:	NC(CS)C=1N(CC(=O)O)C(=O)C(N=1)=[C@H]c2ccc(c(c2)OC)O
InChi:	InChI=1S/C15H17N3O5S/c1-23-12-5-8(2-3-11(12)19)4-10-15(22)18(6-13(20)21)14(17-10)9(16)7-24/h2-5,9,19,24H,6-7,16H2,1H3,(H,20,21)/b10-4-/t9-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)-3-OMeY
Definition date:	2019-01-23
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methoxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KY4

KY4
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(2,3-difluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C14 H13 F2 N3 O4 S
SMILES:	NC(CS)C1=N/C(C(N1CC(O)=O)=O)=Cc2c(F)c(F)c(cc2)O
InChi:	InChI=1S/C14H13F2N3O4S/c15-11-6(1-2-9(20)12(11)16)3-8-14(23)19(4-10(21)22)13(18-8)7(17)5-24/h1-3,7,20,24H,4-5,17H2,(H,21,22)/b8-3-/t7-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)-2,3-F
Definition date:	2019-01-23
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(2,3-difluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KY7

KY7
Name:	{(4Z)-2-[(1S)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-nitrophenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C14 H14 N4 O6 S
SMILES:	NC(CS)C1=N/C(C(N1CC(=O)O)=O)=Cc2cc(c(cc2)O)[N+](=O)[O-]
InChi:	InChI=1S/C14H14N4O6S/c15-8(6-25)13-16-9(14(22)17(13)5-12(20)21)3-7-1-2-11(19)10(4-7)18(23)24/h1-4,8,19,25H,5-6,15H2,(H,20,21)/b9-3-/t8-/m1/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)-3-NO2
Definition date:	2019-01-23
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1S)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-nitrophenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZ1

KZ1
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-5-oxo-4-[(2,3,5-trifluoro-4-hydroxyphenyl)methylidene]-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C14 H12 F3 N3 O4 S
SMILES:	NC(CS)C1=N/C(C(N1CC(=O)O)=O)=Cc2c(c(c(c(c2)F)O)F)F
InChi:	InChI=1S/C14H12F3N3O4S/c15-6-1-5(10(16)11(17)12(6)23)2-8-14(24)20(3-9(21)22)13(19-8)7(18)4-25/h1-2,7,23,25H,3-4,18H2,(H,21,22)/b8-2-/t7-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)-(2,3,5-F3Y)
Definition date:	2019-01-25
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-5-oxo-4-[(2,3,5-trifluoro-4-hydroxyphenyl)methylidene]-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZ4

KZ4
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-bromo-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C14 H14 Br N3 O4 S
SMILES:	NC(CS)C=1N(C(=O)C(N=1)=[C@H]c2cc(c(cc2)O)Br)CC(=O)O
InChi:	InChI=1S/C14H14BrN3O4S/c15-8-3-7(1-2-11(8)19)4-10-14(22)18(5-12(20)21)13(17-10)9(16)6-23/h1-4,9,19,23H,5-6,16H2,(H,20,21)/b10-4-/t9-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)3-Br
Definition date:	2019-01-25
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-bromo-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZ7

KZ7
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-chloro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C14 H14 Cl N3 O4 S
SMILES:	NC(CS)C=1N(CC(=O)O)C(=O)C(N=1)=[C@H]c2ccc(c(c2)Cl)O
InChi:	InChI=1S/C14H14ClN3O4S/c15-8-3-7(1-2-11(8)19)4-10-14(22)18(5-12(20)21)13(17-10)9(16)6-23/h1-4,9,19,23H,5-6,16H2,(H,20,21)/t9-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)3-Cl
Definition date:	2019-01-25
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-chloro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZG

KZG
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-iodophenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}aceti c acid
Formula:	C14 H14 I N3 O4 S
SMILES:	NC(CS)C1=N/C(C(N1CC(O)=O)=O)=Cc2cc(c(cc2)O)I
InChi:	InChI=1S/C14H14IN3O4S/c15-8-3-7(1-2-11(8)19)4-10-14(22)18(5-12(20)21)13(17-10)9(16)6-23/h1-4,9,19,23H,5-6,16H2,(H,20,21)/b10-4-/t9-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)3-I
Definition date:	2019-01-28
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-iodophenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZV

KZV
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-fluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}ace tic acid
Formula:	C14 H14 F N3 O4 S
SMILES:	NC(CS)C=1N(CC(=O)O)C(=O)C(N=1)=[C@H]c2cc(F)c(cc2)O
InChi:	InChI=1S/C14H14FN3O4S/c15-8-3-7(1-2-11(8)19)4-10-14(22)18(5-12(20)21)13(17-10)9(16)6-23/h1-4,9,19,23H,5-6,16H2,(H,20,21)/t9-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)-3F
Definition date:	2019-01-28
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(3-fluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

KZY

KZY
Name:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methylphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid
Formula:	C15 H17 N3 O4 S
SMILES:	NC(CS)C1=N/C(C(N1CC(=O)O)=O)=Cc2cc(c(cc2)O)C
InChi:	InChI=1S/C15H17N3O4S/c1-8-4-9(2-3-12(8)19)5-11-15(22)18(6-13(20)21)14(17-11)10(16)7-23/h2-5,10,19,23H,6-7,16H2,1H3,(H,20,21)/b11-5-/t10-/m0/s1
Synonyms:	CHROMOPHORE (CYS-TYR-GLY)3-CH3
Definition date:	2019-01-28
Last modified:	2024-09-27
Release date:	2019-06-12
Identifier:	{(4Z)-2-[(1R)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methylphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-1-yl}acetic acid

QNQ

QNQ
Name:	4-methylcatechol cysteine
Formula:	C10 H13 N O4 S
SMILES:	Cc1ccc(O)c(O)c1SC[CH](N)C(O)=O
InChi:	InChI=1S/C10H13NO4S/c1-5-2-3-7(12)8(13)9(5)16-4-6(11)10(14)15/h2-3,6,12-13H,4,11H2,1H3,(H,14,15)/t6-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	(2~{R})-2-azanyl-3-[6-methyl-2,3-bis(oxidanyl)phenyl]sulfanyl-propanoic acid

QNT

QNT
Name:	3,6-dimethylcatechol cysteine
Formula:	C11 H15 N O4 S
SMILES:	Cc1cc(SC[CH](N)C(O)=O)c(C)c(O)c1O
InChi:	InChI=1S/C11H15NO4S/c1-5-3-8(6(2)10(14)9(5)13)17-4-7(12)11(15)16/h3,7,13-14H,4,12H2,1-2H3,(H,15,16)/t7-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	(2~{R})-2-azanyl-3-[2,5-dimethyl-3,4-bis(oxidanyl)phenyl]sulfanyl-propanoic acid

QNW

QNW
Name:	3-methylcatechol cysteine
Formula:	C10 H13 N O4 S
SMILES:	Cc1ccc(SC[CH](N)C(O)=O)c(O)c1O
InChi:	InChI=1S/C10H13NO4S/c1-5-2-3-7(9(13)8(5)12)16-4-6(11)10(14)15/h2-3,6,12-13H,4,11H2,1H3,(H,14,15)/t6-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	(2~{R})-2-azanyl-3-[4-methyl-2,3-bis(oxidanyl)phenyl]sulfanyl-propanoic acid

QO2

QO2
Name:	4,5-dimethylcatechol cysteine
Formula:	C11 H15 N O4 S
SMILES:	Cc1cc(O)c(O)c(SC[CH](N)C(O)=O)c1C
InChi:	InChI=1S/C11H15NO4S/c1-5-3-8(13)9(14)10(6(5)2)17-4-7(12)11(15)16/h3,7,13-14H,4,12H2,1-2H3,(H,15,16)/t7-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	(2~{R})-2-azanyl-3-[2,3-dimethyl-5,6-bis(oxidanyl)phenyl]sulfanyl-propanoic acid

QO5

QO5
Name:	3,5-dimethylcatechol cysteine
Formula:	C11 H15 N O4 S
SMILES:	Cc1cc(C)c(SC[CH](N)C(O)=O)c(O)c1O
InChi:	InChI=1S/C11H15NO4S/c1-5-3-6(2)10(9(14)8(5)13)17-4-7(12)11(15)16/h3,7,13-14H,4,12H2,1-2H3,(H,15,16)/t7-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	(2~{R})-2-azanyl-3-[4,6-dimethyl-2,3-bis(oxidanyl)phenyl]sulfanyl-propanoic acid

QO8

QO8
Name:	3,4-dimethylcatechol cysteine
Formula:	C11 H17 N O4 S
SMILES:	Cc1cc(SC[CH](N)C(O)O)c(O)c(O)c1C
InChi:	InChI=1S/C11H17NO4S/c1-5-3-8(10(14)9(13)6(5)2)17-4-7(12)11(15)16/h3,7,11,13-16H,4,12H2,1-2H3/t7-/m0/s1
Definition date:	2020-07-08
Last modified:	2024-09-27
Release date:	2020-12-23
Identifier:	6-[(2~{R})-2-azanyl-3,3-bis(oxidanyl)propyl]sulfanyl-3,4-dimethyl-benzene-1,2-diol

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