2-methoxy-1,2-diphenyl-ethanon
Benzoin methyl ether
CAS: 3524-62-7
Molecular Formula: C15H14O2
2-methoxy-1,2-diphenyl-ethanon - Names and Identifiers
| Name | Benzoin methyl ether |
| Synonyms | BENZOIN METHYL ETHER Benzoin methyl ether LABOTEST-BB LT00159464 2-Methoxy-1,2-diphenylethanone 2-methoxy-2-phenyl-acetophenon 2-methoxy-1,2-diphenyl-ethanon 2-Methoxy-2-phenylacetophenone A-METHOXY-A-PHENYLACETOPHENONE 2-METHOXY-2-PHENYLACETOPHENONE (2R)-2-methoxy-1,2-diphenylethanone (2S)-2-methoxy-1,2-diphenylethanone ALPHA-ETHOXY-ALPHA-PHENYLACETOPHENONE alpha-Methoxy-alpha-phenylacetophenone ALPHA-METHOXY-ALPHA-PHENYLACETOPHENONE |
| CAS | 3524-62-7 |
| EINECS | 222-538-7 |
| InChI | InChI=1/C14H12O2.C2H6O/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12;1-3-2/h1-10,13,15H;1-2H3 |
2-methoxy-1,2-diphenyl-ethanon - Physico-chemical Properties
| Molecular Formula | C15H14O2 |
| Molar Mass | 226.27 |
| Density | 1.128 |
| Melting Point | 47.5-48.5 °C (lit.) |
| Boling Point | 188-189 °C (15 mmHg) |
| Flash Point | >230°F |
| Solubility | Soluble in methanol. |
| Vapor Presure | 1.12E-06mmHg at 25°C |
| Appearance | White or light yellow crystals |
| Color | White to Almost white |
| Merck | 14,1093 |
| BRN | 2052112 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.6530 (estimate) |
| MDL | MFCD00008492 |
| Physical and Chemical Properties | White or light yellow needle-like crystals. Melting point 49-50 ℃, boiling point 188-189 ℃(2.0kPa), relative density of 1.1278(14/4 ℃). |
| Use | As a photoinitiator, it is widely used in the synthesis of photosensitive resin systems |
2-methoxy-1,2-diphenyl-ethanon - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 22 - Harmful if swallowed |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | AM9350000 |
| TSCA | Yes |
| HS Code | 29145000 |
| Toxicity | LD50 oral in mouse: 300mg/kg |
2-methoxy-1,2-diphenyl-ethanon - Introduction
Soluble in alcohol, ether, benzene, acetone and chloroform, insoluble in water. Half lethal dose (mice, oral) 3000mg/kg.
Last Update：2022-10-16 17:24:49
2-methoxy-1,2-diphenyl-ethanon - Introduction
Nature:
1. It is a liquid compound with a fragrant aroma, colorless to light yellow, and has a special aroma.
2. It is insoluble in water, but can dissolve in various organic solvents such as ethanol, ether, and chloroform.
Usage:
Used in industry as a reagent for organic synthesis reactions.
Method:
Benzaldehyde methyl ether can be prepared by reacting benzaldehyde and methanol under alkaline conditions.
Security information:
1. Benzoin methyl ether is generally considered a relatively safe compound, but correct handling and storage methods still need to be followed to avoid contact with the skin, eyes, or inhalation.
2. Wear appropriate protective equipment during operation. If accidental contact or inhalation occurs, immediate cleaning or seeking medical attention should be sought.
3. Seal and store away from open flames, high temperatures, and oxidants.
Last Update：2024-05-07 14:46:01
2-methoxy-1,2-diphenyl-ethanon - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | As a photoinitiator, it is widely used in synthetic photosensitive resin systems |
| production method | benzaldehyde is first reacted in hot potassium cyanide or sodium cyanide ethanol solution to form benzoin: benzaldehyde is mixed with ethanol, the pH value is adjusted to 7-8 with sodium hydroxide, 3% sodium cyanide solution is added, reflux is carried out at 70-80 ℃ for 0.5h, and filtration is carried out at temperature below 10 ℃, the filter cake is washed until it is free of cyanide ions to obtain benzoin. Cyanide ion is a special catalyst in the reaction. Most aromatic aldehydes can perform this reaction. Because it is equivalent to the condensation of two molecules of aldehydes, this reaction is called benzoin condensation. The condensation reaction formula is as follows: In the presence of hydrochloric acid, benzoin is condensed with methanol to obtain benzoin methyl ether |
Last Update：2024-04-09 21:01:54
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