15206-55-0 - Names and IdentifiersNameMethyl benzoylformateSynonymsMBFPI-MBFSyna 468IHT-PI MBFD
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| Nom | Methyl benzoylformate |
| Synonymes | MBF PI-MBF Syna 468 IHT-PI MBF Darocur MBF Photoinitiator-MBF photo sensitizer MBF Methyl benzoylformate Methyl benzoyl formate Methyl phenylglyoxylate methyl oxo(phenyl)acetate Methyl-α-oxo-phenylacetate Phenylglyoxylic acid methyl ester Glycopyrronium Bromide EP Impurity H alpha-oxo-benzeneaceticacimethylester alpha-Oxobenzeneacetic acid methyl ester Benzeneaceticacid,.alpha.-oxo-,methylester Glycopyrronium Bromide Impuritiy 3 (Methyl benzoylformate) |
| CAS | 15206-55-0 |
| EINECS | 239-263-3 |
| InChI | InChI=1/C9H8O3/c1-12-9(11)8(10)7-5-3-2-4-6-7/h2-6H,1H3 |
| Formule moléculaire | C9H8O3 |
| Masse molaire | 164.16 |
| Densité | 1.155 g/mL at 25 °C (lit.) |
| Point de fusion | 16°C |
| point Boling | 246-248 °C (lit.) |
| Point d'éclair | > 230°F |
| Solubilité dans l'eau | 2g/L at 20℃ |
| Apparence | Liquide |
| Gravité spécifique | 1.161.155 |
| Couleur | Clear yellow |
| BRN | 1100868 |
| Condition de stockage | Conserver à moins de +30°C. |
| Indice de réfraction | n20/D 1.528 |
| Propriétés physiques et chimiques | Density 1.155 boiling point 246-248°C refractive index 1.525-1.527 |
| Description de la sécurité | 24/25 - Avoid contact with skin and eyes. |
| Wgk Allemagne | 1 |
| Code SH | 29183000 |
| Toxicité | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 5000 mg/kg |
| LogP | 1.9 at 23℃ |
| preparation of benzoyl formic acid | hydrolysis of methyl benzoyl formate to give good quality benzoyl formic acid |
| gas chromatographic analysis of 2, 4-dichloro-5-aminophenyl isopropyl ether | with 2.5% OV-210, 2M stainless steel packed column, with methyl benzoylformate as internal standard, at 145 ℃ column temperature, 2, 4-dichloro-5-aminophenyl isopropyl ether and 2, A mixture of 4-dichloro-5-nitrophenyl isopropyl ether was quantitatively analyzed. The coefficient of variation was 0.22% and 0.23%, the average recovery was 99.96% and 100.07%, the linear correlation coefficient was 0.9999. |
| Utilisation | methyl benzoylformate is an intermediate of the herbicide buprozin. used in organic synthesis. UV-curable coatings and inks |
| Méthode de production | obtained by esterification of benzoyl acid with methanol. Cyclomethanol and benzoylformic acid were added to the reaction pot, and sulfuric acid was added slowly with stirring. After heating to reflux for 12h, excess methanol was recovered. The esterification was neutralized with dilute sodium carbonate solution, the oil layer was separated, and the water layer was extracted with benzene. The extract was combined with the oil layer, dried over anhydrous sodium sulfate, and then distilled. The solvent benzene was recovered first, and then the low boiling matter was distilled off under reduced pressure. Then the 137-146 ° C. (2.4kPa) fraction was collected and taken as methyl benzoylformate. The raw material benzoylformic acid used was obtained by oxidation of styrene (see 04960), and the yield of esterification based on benzoylformic acid was more than 50%. The preparation method is to add sodium chloride and sulfuric acid in the reaction bottle, stir at room temperature, Dropwise add benzoyl nitrile, control the temperature at about 30 ℃, and keep the heat for 3 h after dropping, then methanol was added dropwise, and the temperature was raised and refluxed for 5 h. After the reaction was completed, methanol was removed under reduced pressure to obtain a finished product. |
| Température d'auto - inflammation | >500°C |
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