Name | DL-Asparagine monohydrate |
Synonyms | DL-Asn ASPARAGINE h-dl-asn.h aspartamide DL-ASPARAGINE H-DL-Asn.H_2O DL-Asparagine DL-Aspartamine ASPARAGINE, DL- DL-2-AMINOSUCCINAMIC ACID DL-Asparagine monohydrate DL-2-Aminosuccinamic acid DL-Aspraragine Monohydrate DL-2-Aminosuccinamic acid monohydrate (±)-2-Aminosuccinic acid 4-amide, DL-Aspartic acid 4-amide |
CAS | 3130-87-8 |
EINECS | 221-521-1 |
InChI | InChI=1/C4H8N2O3.H2O/c5-2(4(8)9)1-3(6)7;/h2H,1,5H2,(H2,6,7)(H,8,9);1H2 |
Molecular Formula | C4H8N2O3 |
Molar Mass | 132.12 |
Density | 1.404±0.06 g/cm3(Predicted) |
Melting Point | 220°C (dec.)(lit.) |
Boling Point | 438.0±40.0 °C(Predicted) |
Flash Point | 218.7°C |
Water Solubility | soluble |
Solubility | Aqueous Acid (Slightly), Water (Slightly) |
Vapor Presure | 6.74E-09mmHg at 25°C |
Appearance | Crystallization |
Color | White |
BRN | 6234992 |
pKa | 2.17(at 20℃) |
Storage Condition | Room Temperature |
MDL | MFCD00151039 |
Physical and Chemical Properties | White crystalline substance, odorless; Soluble in acid or alkali solution, slightly soluble in water, insoluble in ethanol, ether and other organic solvents; mp is 234-235 ℃, relative density 1.5430. |
Use | Biochemical research. |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29241900 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Biological activity | DL-Asparagine is a racemic mixture of L-Aparagine and D-Aparagine enantiomers. DL-Asparagine can be used in the growth medium of bacteria. |
use | for biochemical research and medium preparation. |
Production method | Dissolve maleic anhydride in dioxane solution, add benzylammonia to reflux after ammoniolysis, and then catalyze hydrogenation to refine the product. |