| Identification | Back Directory | [Name]
2-MERCAPTO-L-HISTIDINE | [CAS]
2002-22-4 | [Synonyms]
L-THIOHISTIDINE
2-THIOLHISTIDINE
EINECS 217-899-2
H-2-MERCAPTO-HIS-OH
L-Mercaptohistidine
2-MERCAPTO-L-HISTIDI
H-HIS(2-MERCAPTO)-OH
2-MERCAPTO-HISTIDINE
L-His(2-mercapto)-OH
2-MERCAPTO-L-HISTIDINE
1H-IMIDAZOLE-4-PROPANOIC ACID
2-Mercapto-L-histidine≥ 98% (TLC)
2-Thiolhistidine, 1H-Imidazole-4-propanoic Acid
(S)-α-Amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propionic acid
(2S)-2-ammonio-3-(2-thioxo-1,3-dihydroimidazol-4-yl)propanoate
(2S)-2-ammonio-3-(2-thioxo-1,3-dihydroimidazol-4-yl)propionate
(2S)-2-amino-3-(2-thioxo-1,3-dihydroimidazol-4-yl)propanoic acid
(2S)-2-amino-3-(2-thioxo-1,3-dihydroimidazol-4-yl)propionic acid
(2S)-2-azaniumyl-3-(2-thioxo-1,3-dihydroimidazol-4-yl)propanoate
(S)-alpha-amino-2,3-dihydro-2-thioxo-1H-imidazole-4-propionic acid
(2S)-2-azaniumyl-3-(2-sulfanylidene-1,3-dihydroimidazol-4-yl)propanoate
(2S)-2-amino-3-(2-sulfanylidene-1,3-dihydroimidazol-4-yl)propanoic acid | [EINECS(EC#)]
217-899-2 | [Molecular Formula]
C6H9N3O2S | [MDL Number]
MFCD00047018 | [MOL File]
2002-22-4.mol | [Molecular Weight]
187.22 |
| Chemical Properties | Back Directory | [Appearance]
Colourless Crystals | [Melting point ]
320-325°C | [Boiling point ]
376.3±52.0 °C(Predicted) | [density ]
1.52±0.1 g/cm3(Predicted) | [storage temp. ]
-15°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 |
| Hazard Information | Back Directory | [Chemical Properties]
Colourless Crystals | [Uses]
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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