EAB
4,4'-Bis(diethylamino)benzophenone
CAS: 90-93-7
Molecular Formula: C21H28N2O
EAB - Names and Identifiers
| Name | 4,4'-Bis(diethylamino)benzophenone |
| Synonyms | MCO EAB Photoinitiator-MEK MICHLER ETHYLKETONE Michlers Ethylketone ETHYL MICHLER'S KETONE Tetraethyl Michler's Ketone 4,4'-DIETHYLAMINOBENZOPHENONE 4,4-Bis(diethylamino)benzophenone 4,4-BIS(DIETHYLAMINO) BENZOPHENONE Bis[4-(diethylamino)phenyl] ketone 4,4-Bis(Diethylamino) Benzophenone 4,4'-Bis(diethylamino)benzophenone 4,4'-BIS(DIETHYLAMINO)BENZOPHENONE 4,4'-Carbonylbis(N,N-diethylaniline) bis[4-(diethylamino)phenyl]methanone 4,4'-di(N,N-Diethylamino)benzophenone |
| CAS | 90-93-7 |
| EINECS | 202-025-4 |
| InChI | InChI=1/C21H28N2O/c1-5-22(6-2)19-13-9-17(10-14-19)21(24)18-11-15-20(16-12-18)23(7-3)8-4/h9-16H,5-8H2,1-4H3 |
| InChIKey | VYHBFRJRBHMIQZ-UHFFFAOYSA-N |
EAB - Physico-chemical Properties
| Molecular Formula | C21H28N2O |
| Molar Mass | 324.46 |
| Density | 1.048±0.06 g/cm3(Predicted) |
| Melting Point | 89-92°C(lit.) |
| Boling Point | 475.7±30.0 °C(Predicted) |
| Flash Point | 151 °C |
| Water Solubility | insoluble |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | Crystalline powder |
| Color | Yellow to yellow-green |
| Maximum wavelength(λmax) | ['352nm(THF)(lit.)'] |
| BRN | 2148611 |
| pKa | 4.14±0.32(Predicted) |
| PH | 4-6 (50g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Light Sensitive |
| Refractive Index | 1.581 |
| MDL | MFCD00009044 |
| Physical and Chemical Properties | Melting point 93-95°C. Flash point 151°C. Water-soluble |
| Use | Used as a dye intermediate |
EAB - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| RTECS | OS9545500 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29223990 |
| Hazard Note | Irritant |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 5000 mg/kg |
EAB - Introduction
Insoluble in water.
Last Update：2022-10-16 17:29:41
EAB - Reference Information
| LogP | 5.2 at 35℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| synthesis method of tetramethylmichodone | is obtained by condensation of N,N-dimethylaniline with phosgene. |
| The role of tetraethyl mithone | an important intermediate of basic dyes, used in the production of basic brilliant blue B, basic brilliant blue R, etc. |
| preparation of alkaline Blue 7 | with tetraethyl mikotinone [benzophenone, 4, 4 '-bis] and N-ethyl -1-naphthylamine as raw materials, the two in the presence of phosphorus oxychloride condensation, after dilution, hydrolysis, purification, salting out to obtain the finished product. |
| Use | as dye intermediate UV-Curable Coating and ink |
Last Update：2024-04-09 21:21:28
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