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ChemicalBook >> CAS DataBase List >> 2-MERCAPTO-L-HISTIDINE

2-MERCAPTO-L-HISTIDINE

$87.36 - $3450
Product name: 2-MERCAPTO-L-HISTIDINE
CAS: 2002-22-4
MF: C6H9N3O2S
MW: 187.22
EINECS:217-899-2
MDL Number:MFCD00047018
Synonyms:L-THIOHISTIDINE;H-HIS(2-MERCAPTO)-OH;H-2-MERCAPTO-HIS-OH;1H-IMIDAZOLE-4-PROPANOIC ACID;2-MERCAPTO-HISTIDINE;2-MERCAPTO-L-HISTIDINE;2-THIOLHISTIDINE;(S)-alpha-amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propionic acid

Price42 Properties Safety Information Description

42 prices

Selected condition：

Brand

aablocks
ACHEMBLOCK
AK Scientific
Alichem
American Custom Chemicals Corporation
Chemenu
Chem-Impex
Crysdot
Iris Biotech GmbH
Matrix Scientific
Medical Isotopes, Inc.
TRC
Usbiological

Package

25mg
100MG
250mg
0.500g
0.5g
500mg
1.00g
1g
5g

Manufactureraablocks
Product numberAA002CJE
Product description2-Mercapto-L-histidine 95%
Packaging250mg
Price$96
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA002CJE
Product description2-Mercapto-L-histidine 95%
Packaging1g
Price$229
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA002CJE
Product description2-Mercapto-L-histidine 95%
Packaging5g
Price$896
Updated2026-05-28
Buy

ManufacturerACHEMBLOCK
Product numberAD270444
Product description(alphaS)-alpha-Amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propanoic acid 95%
Packaging1G
Price$260
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberAD270444
Product description(alphaS)-alpha-Amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propanoic acid 95%
Packaging250MG
Price$105
Updated2026-05-27
Buy

ManufacturerAK Scientific
Product number0298AB
Product description(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid
Packaging500mg
Price$374
Updated2021-12-16
Buy

ManufacturerAlichem
Product number2002224
Product description(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid
Packaging5g
Price$523.2
Updated2021-12-16
Buy

ManufacturerAmerican Custom Chemicals Corporation
Product numberAAA0000246
Product description2-MERCAPTO-L-HISTIDINE 95.00%
Packaging100MG
Price$716.1
Updated2021-12-16
Buy

ManufacturerAmerican Custom Chemicals Corporation
Product numberAAA0000246
Product description2-MERCAPTO-L-HISTIDINE 95.00%
Packaging250MG
Price$1120
Updated2021-12-16
Buy

ManufacturerAmerican Custom Chemicals Corporation
Product numberAAA0000246
Product description2-MERCAPTO-L-HISTIDINE 95.00%
Packaging1G
Price$1686.3
Updated2021-12-16
Buy

ManufacturerChemenu
Product numberCM303089
Product description(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoic acid 95%
Packaging5g
Price$556
Updated2026-05-26
Buy

ManufacturerChemenu
Product numberCM303089
Product description(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoic acid 95%
Packaging5g
Price$556
Updated2026-05-20
Buy

ManufacturerChemenu
Product numberCM303089
Product description(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid 95%
Packaging5g
Price$556
Updated2021-12-16
Buy

ManufacturerChem-Impex
Product number07071
Product description2-Mercapto-L-histidine ≥98%(TLC)
Packaging5G
Price$3450
Updated2026-05-19
Buy

ManufacturerChem-Impex
Product number07071
Product description2-Mercapto-L-histidine ≥98%(TLC)
Packaging1G
Price$695
Updated2026-05-19
Buy

ManufacturerChem-Impex
Product number07071
Product description2-Mercapto-L-histidine ≥98%(TLC)
Packaging250MG
Price$210
Updated2026-05-19
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA002CJE	2-Mercapto-L-histidine 95%	250mg	$96	2026-05-28	Buy
aablocks	AA002CJE	2-Mercapto-L-histidine 95%	1g	$229	2026-05-28	Buy
aablocks	AA002CJE	2-Mercapto-L-histidine 95%	5g	$896	2026-05-28	Buy
ACHEMBLOCK	AD270444	(alphaS)-alpha-Amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propanoic acid 95%	1G	$260	2026-05-27	Buy
ACHEMBLOCK	AD270444	(alphaS)-alpha-Amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propanoic acid 95%	250MG	$105	2026-05-27	Buy
AK Scientific	0298AB	(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid	500mg	$374	2021-12-16	Buy
Alichem	2002224	(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid	5g	$523.2	2021-12-16	Buy
American Custom Chemicals Corporation	AAA0000246	2-MERCAPTO-L-HISTIDINE 95.00%	100MG	$716.1	2021-12-16	Buy
American Custom Chemicals Corporation	AAA0000246	2-MERCAPTO-L-HISTIDINE 95.00%	250MG	$1120	2021-12-16	Buy
American Custom Chemicals Corporation	AAA0000246	2-MERCAPTO-L-HISTIDINE 95.00%	1G	$1686.3	2021-12-16	Buy
Chemenu	CM303089	(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoic acid 95%	5g	$556	2026-05-26	Buy
Chemenu	CM303089	(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoic acid 95%	5g	$556	2026-05-20	Buy
Chemenu	CM303089	(S)-2-Amino-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)propanoicacid 95%	5g	$556	2021-12-16	Buy
Chem-Impex	07071	2-Mercapto-L-histidine ≥98%(TLC)	5G	$3450	2026-05-19	Buy
Chem-Impex	07071	2-Mercapto-L-histidine ≥98%(TLC)	1G	$695	2026-05-19	Buy
Chem-Impex	07071	2-Mercapto-L-histidine ≥98%(TLC)	250MG	$210	2026-05-19	Buy

Next Last

Properties

Melting point :320-325°C
Boiling point :376.3±52.0 °C(Predicted)
Density :1.52±0.1 g/cm3(Predicted)
storage temp. :Sealed in dry,2-8°C
solubility :Aqueous Acid (Slightly)
form :Solid
pka :pK1:1.84(＋1);pK2:8.47(0);pK3:11.4(SH) (25°C)
color :Off-White
Cosmetics Ingredients Functions :CHELATING
ANTIOXIDANT
BLEACHING InChI :1S/C6H9N3O2S/c7-4(5(10)11)1-3-2-8-6(12)9-3/h2,4H,1,7H2,(H,10,11)(H2,8,9,12)/t4-/m0/s1
InChIKey :FVNKWWBXNSNIAR-BYPYZUCNSA-N
SMILES :N[C@@H](Cc1c[nH]c(S)n1)C(O)=O

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	Pictogram	P-Codes
H317	May cause an allergic skin reaction	Sensitisation, Skin	Category 1	Warning		P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning		P264, P280, P305+P351+P338,P337+P313P

Precautionary statements:

P280	Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

An intermediate in the formation of L-egothioneine, a natural amino acid ubiquitously present in cells and tissues of most plants and mammalian species. In humans, L-ergothioneine is found in red blo od cells, liver, kidney, brain, seminal fluid, and cataract-free lenses at concentrations ranging from 100 uM to 2 mM. L-ergothioneine is exclusively biosynthesized in fungi and mycobacteria. Hence, humans assimilate it through dietary intake.

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2-MERCAPTO-L-HISTIDINE

Properties

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Description

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