L-Histidine
IUPAC: (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid
| Formula / Notation | C6H9N3O2 |
|---|---|
| CAS Number | 71-00-1 |
| Molecular Weight | 155.15 |
| Melting Point | 287 dec °C |
| Solubility | 45600 mg/L (at 25 °C) |
| Appearance | Solid; [Merck Index] Powder; [Sigma-Aldrich MSDS] |
| Also Known As | (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid; histidine; 71-00-1; glyoxaline-5-alanine; L-(-)-Histidine; histidina; Istidina; HISTIDINE, L-; L-Histidin; (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid |
| Category | Organic Compounds |
What is L-Histidine?
L-histidine is the L-enantiomer of the amino acid histidine. It has a role as a micronutrient, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, a histidine and a proteinogenic amino acid. It is a conjugate base of a L-histidinium(1+). It is a conjugate acid of a L-histidinate(1-). It is an enantiomer of a D-histidine. It is a tautomer of a L-histidine zwitterion.
Formula & Notation
IUPAC Name: (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid
Other Names / Synonyms: (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid; histidine; 71-00-1; glyoxaline-5-alanine; L-(-)-Histidine; histidina; Istidina; HISTIDINE, L-; L-Histidin; (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 287 dec °C |
| Molecular Weight | 155.15 |
| Solubility | 45600 mg/L (at 25 °C) |
| Appearance | Solid; [Merck Index] Powder; [Sigma-Aldrich MSDS] |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
L-histidine is the L-enantiomer of the amino acid histidine. It has a role as a micronutrient, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, a histidine and a proteinogenic amino acid. It is a conjugate base of a L-histidinium(1+). It is a conjugate acid of a L-histidinate(1-). It is an enantiomer of a D-histidine. It is a tautomer of a L-histidine zwitterion.
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for L-Histidine is: C6H9N3O2