M2951-10

2-Mercapto-L-histidine (L-His(2-mercapto)-OH)

Size

£377.00

SKU:: M2951-10
Molecular Weight:: 187.22
Storage Conditions:: -20°C
Supplier:: United States Biological
CAS Number:: 2002-22-4
Extra Details:: 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 blood cells, liver, kidney, brain, seminal fluid. Synonyms: (αS)-α-Amino-2,3-dihydro-2-thioxo-1H-Imidazole-4-propanoic Acid; 2-Thiolhistidine 1H-Imidazole-4-propanoic Acid; L-2-Mercaptohistidine; L-2-Thiolhistidine; L-Thiohistidine; L-His(2-mercapto)-OH CAS No: 2002-22-4 Molecular Formula: C₆H₉N₃O₂S Molecular Weight: 187.22 Purity: ≥98% (TLC) Appearance: Slightly yellow powder Solubility: Aqueous Acid (Slightly) TLC: n-Butanol/Acetic acid/Water (4:2:2) Methanol/Chloroform/Ammonia 17% (2:2:1) Chloroform/Methanol/Acetic Acid 32% (5:3:1) Plate: silicagel 60 F254 Detected by: UV, ninhydrin, chlorine-tolidine Melting Point: >250°C (dec.) Optical Rotation: [a]D24 = -10 ± 2º (C=1 in 1M HCl) Water (KF): ≤1% Storage and Stability: Store at -20°C under inert atmosphere. For maximum recovery of product, centrifuge the original vial prior to removing the cap.