4,4'-Bis(diethylamino) benzophenone
Synonym(s):p ,p ′-Tetraethyldiaminobenzophenone;4,4′-(Tetraethyldiamino)benzophenone;4,4′-Bis(diethylamino)-benzophenone;4,4′-Bis(diethylamino)diphenyl ketone;Bis[4-(diethylamino)phenyl]methanone
- CAS NO.：90-93-7
- Empirical Formula: C21H28N2O
- Molecular Weight: 324.46
- MDL number: MFCD00009044
- EINECS: 202-025-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-11-17 10:01:41
What is 4,4'-Bis(diethylamino) benzophenone?
Chemical properties
YELLOW TO YELLOW-GREEN CRYSTALLINE GRANULES
Flammability and Explosibility
Not classified
Purification Methods
Crystallise the phenone from EtOH (25mL/g) and dry it under vacuum. Its picrate forms yellow needles from EtOH with m 178.5o. [Beilstein 14 II 59.]
Properties of 4,4'-Bis(diethylamino) benzophenone
| Melting point: | 89-92 °C(lit.) |
| Boiling point: | 475.7±30.0 °C(Predicted) |
| Density | 1.048±0.06 g/cm3(Predicted) |
| vapor pressure | 0Pa at 20℃ |
| Flash point: | 151 °C |
| storage temp. | Store below +30°C. |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Crystalline Granules |
| pka | 4.14±0.32(Predicted) |
| color | Yellow to yellow-green |
| PH | 4-6 (50g/l, H2O, 20℃) |
| Water Solubility | insoluble |
| Sensitive | Light Sensitive |
| λmax | 352nm(THF)(lit.) |
| BRN | 2148611 |
| CAS DataBase Reference | 90-93-7(CAS DataBase Reference) |
| EPA Substance Registry System | Methanone, bis[4-(diethylamino)phenyl]- (90-93-7) |
Safety information for 4,4'-Bis(diethylamino) benzophenone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H400:Hazardous to the aquatic environment, acute hazard H401:Hazardous to the aquatic environment, acute hazard H410:Hazardous to the aquatic environment, long-term hazard H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. P501:Dispose of contents/container to..… |
Computed Descriptors for 4,4'-Bis(diethylamino) benzophenone
| InChIKey | VYHBFRJRBHMIQZ-UHFFFAOYSA-N |
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