543-24-8
N-Acetylglycine
CAS: 543-24-8
Molecular Formula: C4H7NO3
543-24-8 - Names and Identifiers
| Name | N-Acetylglycine |
| Synonyms | Ac-Gly-OH AKOS B029711 Acetyl-glycin Aceturic acid ACETURIC ACID ACETYL-GLYCINE Aceturic acid) N-Acetylglycine ACETYL GLYCOCOLL Glycine,N-acetyl- (acetylamino)acetate Acetamidoacetic acid (ACETYLAMINO)ACETIC ACID Ethanoylaminoethanoicacid Ethanoylaminoethanoic acid N-Acetylglycine,(Acetamidoacetic acid |
| CAS | 543-24-8 |
| EINECS | 208-839-6 |
| InChI | InChI=1/C4H7NO3/c1-3(6)5-2-4(7)8/h2H2,1H3,(H,5,6)(H,7,8)/p-1 |
| InChIKey | OKJIRPAQVSHGFK-UHFFFAOYSA-N |
543-24-8 - Physico-chemical Properties
| Molecular Formula | C4H7NO3 |
| Molar Mass | 117.1 |
| Density | 1.3886 (rough estimate) |
| Melting Point | 207-209 °C (lit.) |
| Boling Point | 218.88°C (rough estimate) |
| Flash Point | 198.8°C |
| Water Solubility | 2.7 g/100 mL (15 ºC) |
| Solubility | Soluble in water, ethanol, slightly soluble in acetone, chloroform and ice ethanol, insoluble in ether and benzene. |
| Vapor Presure | 1.07E-07mmHg at 25°C |
| Appearance | White Crystals |
| Color | White |
| Merck | 14,80 |
| BRN | 774114 |
| pKa | 3.669(at 25℃) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4540 (estimate) |
| MDL | MFCD00004275 |
| Physical and Chemical Properties | Melting point 207-209°C water-soluble 2.7g/100 mL (15°C) |
| Use | Used as pharmaceutical intermediates and biochemical reagents |
543-24-8 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S22 - Do not breathe dust. 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 |
| Hazard Class | IRRITANT |
543-24-8 - Reference Information
| introduction | N-acetylglycine is an important fine chemical raw material, which is used in medicine to synthesize benil, xinyingling, ethyl imidazolate, DL-serine, etc. |
| application | acetylglycine can be used as pharmaceutical intermediate and biochemical reagent, mainly used in laboratory research and development process and chemical production process. |
| biological activity | N-Acetylglycine (NAGly, Aceturic acid, Acetamidoacetic acid) is a minor component of many foods and has no genotoxicity or acute toxicity. |
| chemical properties | long needle crystal with melting point 206-208 ℃. Soluble in water and alcohol, the solubility in water at 15 ℃ is 2.7:100; Slightly soluble in acetone, glacial acetic acid and chloroform; Almost insoluble in ether and benzene. |
| use | used as pharmaceutical intermediate and biochemical reagent |
| production method | glycine acetyl method: put an amino acid and about 4 times the amount of water into the reaction pot, stir until all dissolved. Add 4/5 of the total amount of acetic anhydride at about 20 ℃, stir for 0.5h, and add the remaining 1/5 of acetic anhydride. In terms of volume ratio, acetic anhydride is 2.11 times that of glycine. The stirring reaction was continued at 20 ℃ for 2h and frozen overnight. Filter, the filter cake is washed with a small amount of ice water, dried to obtain acetylglycine, the filtrate with a melting point of about 206 ℃ is concentrated to dry under reduced pressure, and the residue is hot dissolved with 3 times of water, then frozen, filtered, dried, and a part of acetylglycine can be obtained. Yield 84%-86%. If acetylation is carried out in acetic acid, the yield can reach more than 94%. The specific operation is as follows: put glacial acetic acid into the reaction tank, stir and add glycine. Add acetic anhydride dropwise at about 30 ℃. The drop acceleration is controlled so that the reaction temperature does not exceed 60°C. After the addition, keep the temperature at 55-60 ℃ for 4 hours. Cold to 20 ℃, filter, wash with acetone, and dry at about 80 ℃ to obtain the product. |
| NIST chemical information | The information is: webbook.nist.gov provides (external link) |
| EPA chemical information | The information is: offered by ofmpub.epa.gov (external link) |
Last Update：2024-04-09 20:49:11
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