DL-Valine has the molecular formula C₅H₁₁NO₂ and a molecular weight of about 117.15. It is also known as DL-α-aminoisovaleric acid or DL-2-amino-3-methylbutyric acid. The compound is a white crystalline powder with a melting point around 295℃ and a boiling point of 213.6℃ at 760 mmHg. Its specific rotation ranges from -0.6 to +0.6° (20°C/D)(c=8, HCl). DL-Valine is hygroscopic and readily soluble in water.
DL-Valine Chemical Properties
| Melting point | 295 °C (dec.) (lit.) |
| Alpha | -0.6～+0.6° (20℃/D)(c=8, HCl) |
| Boiling point | 213.6±23.0 °C(Predicted) |
| Density | 1.31 |
| FEMA | 3444 | D,L-VALINE |
| Refractive index | 1.4650 (estimate) |
| Storage temp | Keep in dark place,Inert atmosphere,Room temperature |
| Solubility | Water (Slightly, Sonicated) |
| Pka | PK1:2.32(+1);pK2:9.61(0) (25°C) |
| Form | Crystalline Powder |
| Color | White |
| Odor | Odorless |
| Odor Type | Odorless |
| Biological source | Synthetic |
| Water Solubility | 68 g/L |
| JECFA Number | 1426 |
| Merck | 14,9909 |
| BRN | 506689 |
| LogP | 0.29 |
| CAS DataBase Reference | 516-06-3(CAS DataBase Reference) |
| NIST Chemistry Reference | DL-Valine(516-06-3) |
| EPA Substance Registry System | Valine (516-06-3) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 40 |
| Safety Statements | 22-24/25-36 |
| WGK Germany | 3 |
| RTECS | YV9355500 |
| TSCA | Yes |
| HS Code | 29224995 |
DL-Valine is an essential building block for protein synthesis and is utilized in the preparation of amino acid infusions and nutritional supplements. It also functions as a nutritional fortifier in food and feed, and finds applications in biochemical research and related fields.
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