AC-DL-ALANINE
N-Acetyl-DL-alanine
CAS: 1115-69-1
Molecular Formula: C5H9NO3
AC-DL-ALANINE - Names and Identifiers
| Name | N-Acetyl-DL-alanine |
| Synonyms | AC-DL-ALA-OH Ac-DL-Ala-OH AC-DL-ALANINE N-acetylalanine N-ACETYL-DL-ALA ACETYL-DL-ALANINE N-acetyl-D-alanine N-Acetyl-DL-alanine N-ACETYL-DL-ALANINE N-ACETYL-L(DL)-ALANINE 2-Acetylamino-Propionic Acid n-acetyl-dl-alaninecrystalline N-ACETYL-DL-2-AMINOPROPIONIC ACID |
| CAS | 1115-69-1 |
| EINECS | 214-229-0 |
| InChI | InChI=1/C5H9NO3/c1-3(5(8)9)6-4(2)7/h3H,1-2H3,(H,6,7)(H,8,9)/t3-/m1/s1 |
AC-DL-ALANINE - Physico-chemical Properties
| Molecular Formula | C5H9NO3 |
| Molar Mass | 131.13 |
| Density | 1.170±0.06 g/cm3(Predicted) |
| Melting Point | 137-139°C |
| Boling Point | 369.7±25.0 °C(Predicted) |
| Flash Point | 177.4°C |
| Solubility | DMMSO (Slightly), Methanol (Slightly) |
| Vapor Presure | 1.77E-06mmHg at 25°C |
| Appearance | White powder |
| Color | White to Off-White |
| BRN | 774333 |
| pKa | 3.69±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.454 |
| MDL | MFCD00037238 |
AC-DL-ALANINE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 29225090 |
| Hazard Class | IRRITANT, KEEP COLD |
AC-DL-ALANINE - Reference Information
| Application | N-acetyl-DL-alanine is the acetylation product of DL-alanine. It can be prepared by one-step reaction of DL-alanine and acetic anhydride. N-acetyl-DL-amino acid is an important fine organic chemical intermediate, which is widely used in medicine, pesticide, chemical industry and other fields. |
| preparation | a method for preparing N-acetyl-DL-alanine, which is characterized by the following steps: mixing D,L-alanine and acetic acid in a molar ratio of 1:6, heating to 60 ℃, stirring and keeping warm for 3 hours; within 4 hours, uniformly add acetic anhydride equivalent to 1.2 times the moles of the amino acids, and then stir at 60°C for 2 hours; quickly distill under the conditions of a vacuum of 0.08MPa and 70°C, until the distilled liquid is added to the volume of acetic acid 1.2 times; then add water with 1 times the mass of the amino acid, stir and cool to precipitate and crystallize, and leave for 6 hours, solid-liquid separation, solid drying to obtain N-acetyl-DL-alanine. |
Last Update：2024-04-10 22:30:50
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