| Identification | More | [Name]
4,4'-Bis(diethylamino) benzophenone | [CAS]
90-93-7 | [Synonyms]
4,4-BIS(DIETHYLAMINO) BENZOPHENONE
4,4'-BIS(DIETHYLAMINO)BENZOPHENONE
4,4'-DIETHYLAMINOBENZOPHENONE
ETHYL MICHLER'S KETONE
MICHLER ETHYLKETONE
MICHLER'S ETHYL KETONE
N,N,N',N'-TETRAETHYL-4,4'-DIAMINOBENZOPHENONE
N,N,N,N-TETRAETHYL-4,4'-DIAMINO-BENZOPHENONE
P,P'-TETRAETHYLDIAMINOBENZOPHENONE
4,4’-di(N,N-Diethylamino)benzophenone
bis[4-(diethylamino)phenyl]-methanon
bis[4-(diethylamino)phenyl]-Methanone
4,4'-Bis(diethylamine)benzophenone
4,4'-BIS(DIETHYLAMINO)BENZOPHENONE, 99+%
Ethyl ketone base
Tetraethyl-diaminobenzophenone
Methanone, bis4-(diethylamino)phenyl-
4,4'-Bis(diethylamino)benzophenone 98%
4,4-BIS(DIETHYLAMINO) BENZOPHENONE 98+%
SYNCUREEPDETHYL4-(DIMETHYLAMINO)BENZOATE | [EINECS(EC#)]
202-025-4 | [Molecular Formula]
C21H28N2O | [MDL Number]
MFCD00009044 | [Molecular Weight]
324.46 | [MOL File]
90-93-7.mol |
| Chemical Properties | Back Directory | [Appearance]
YELLOW TO YELLOW-GREEN CRYSTALLINE GRANULES | [Melting point ]
89-92 °C(lit.)
| [Boiling point ]
475.7±30.0 °C(Predicted) | [bulk density]
400kg/m3 | [density ]
1.048±0.06 g/cm3(Predicted) | [vapor pressure ]
0Pa at 20℃ | [Fp ]
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 | [InChI]
1S/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 | [SMILES]
CCN(C1=CC=C(C(C2=CC=C(N(CC)CC)C=C2)=O)C=C1)CC | [LogP]
5.2 at 35℃ | [CAS DataBase Reference]
90-93-7(CAS DataBase Reference) | [EPA Substance Registry System]
90-93-7(EPA Substance) |
| Safety Data | Back Directory | [Symbol(GHS) ]
 
GHS07,GHS09 | [Signal word ]
Warning | [Hazard statements ]
H410-H401-H411-H315-H319-H335-H400 | [Precautionary statements ]
P280i-P337+P313-P261-P273-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P391-P501 | [Hazard Codes ]
Xi,N | [Risk Statements ]
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 Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36:Wear suitable protective clothing .
S24/25:Avoid contact with skin and eyes . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
2
| [RTECS ]
OS9545500
| [F ]
8 | [Hazard Note ]
Irritant | [TSCA ]
Yes | [REACH Registrations]
Inactive | [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
29223990 | [Storage Class]
11 - Combustible Solids | [Toxicity]
LD50 orally in Rabbit: 5000 mg/kg |
| Hazard Information | Back Directory | [Description]
4,4'-Bis(diethylamino) benzophenone is a highly efficient type II free radical photoinitiator that can initiate polymerization of oligomers under ultraviolet light. In addition, tetraethyl Michler's ketone is also an intermediate in the production of basic brilliant blue dye BO and triphenylmethane chemicals. | [Chemical Properties]
YELLOW TO YELLOW-GREEN CRYSTALLINE GRANULES | [Uses]
4,4'-Bis(diethylamino) benzophenone is used as a dye intermediate, and also in UV-curable coatings and inks. | [Flammability and Explosibility]
Notclassified | [Synthesis]
General procedure for the synthesis of tetraethyl mithridone from 4,4'-methylenebis(N,N-dimethylaniline): 4,4'-bis(dialkylamino)diphenylmethane (30g), cobalt complex (3) (0.9g), tetrachlorophenylhydrazine (0.9g), trioctylmethylammonium chloride (1g), and chlorobenzene (100 ml) were added into 250 ml four necked flask. At room temperature, 30% hydrogen peroxide (13.2 g) was slowly added dropwise and the reaction temperature was controlled between 20 and 25°C. The progress of the reaction was monitored by thin layer chromatography (TLC) until the ingredients were fully reacted. Upon completion of the reaction, the reaction mixture was cooled to 5 °C, washed by adding 30 ml of 20% sodium bisulfite solution, and left to stratify. The organic phase was concentrated by distillation under reduced pressure to give the crude product of tetraethyl mithridone (29 g). The crude product was recrystallized with n-heptane (29 g) to give a light yellow tetraethyl mesterolone solid (25.3 g), which was analyzed by high performance liquid chromatography (HPLC) and showed a purity of 99.1%. | [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.] | [References]
[1] Patent: CN107686450, 2018, A. Location in patent: Paragraph 0020; 0023; 0026; 0029; 0031; 0032; 0033 |
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IGM RESINS
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J & K SCIENTIFIC LTD.
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Alfa Aesar
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Energy Chemical
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jiliang chemicals
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http://www.jiliangchem.com |
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