CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Solid; [Merck Index] White crystalline solid; [Sigma-Aldrich MSDS] |
|---|---|
| Chemical Classes | Biological Agents -> Amino Acids and Derivatives |
COMPUTED DESCRIPTORS
| Molecular Weight | 155.15 g/mol |
|---|---|
| XLogP3 | -3.2 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 3 |
| Exact Mass | 155.069476538 g/mol |
| Monoisotopic Mass | 155.069476538 g/mol |
| Topological Polar Surface Area | 92 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 151 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 1 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Histidine is an alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. It has a role as a metabolite. It is an alpha-amino acid, a member of imidazoles, an aromatic amino acid and a polar amino acid. It contains a 1H-imidazol-4-ylmethyl group. It is a conjugate base of a histidinium(1+). It is a conjugate acid of a histidinate(1-).