4,4′-Bis(diethylamino)benzophenone , 99% , 90-93-7

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

PRODUCT Properties

• Melting point: 89-92 °C(lit.)
• Boiling point: 475.7±30.0 °C(Predicted)
• Density: 1.048±0.06 g/cm3(Predicted)
• bulk density: 400kg/m3
• vapor pressure: 0Pa at 20℃
• Flash point: 151 °C
• storage temp.: Store below +30°C.
• solubility: Chloroform (Slightly), Methanol (Slightly)
• pka: 4.14±0.32(Predicted)
• form: Crystalline Granules
• color: Yellow to yellow-green
• PH: 4-6 (50g/l, H2O, 20℃)
• Water Solubility: insoluble
• Sensitive: Light Sensitive
• λmax: 352nm(THF)(lit.)
• BRN: 2148611
• InChIKey: VYHBFRJRBHMIQZ-UHFFFAOYSA-N
• LogP: 5.2 at 35℃
• CAS DataBase Reference: 90-93-7(CAS DataBase Reference)
• EPA Substance Registry System: Methanone, bis[4-(diethylamino)phenyl]- (90-93-7)

Description and Uses

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.

Safety

• 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: 36/37/38-50/53
• Safety Statements: 26-60-61-36-24/25
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 2
• RTECS: OS9545500
• F: 8
• Hazard Note: Irritant
• TSCA: Yes
• HazardClass: 9
• PackingGroup: III
• HS Code: 29223990
• Toxicity: LD50 orally in Rabbit: 5000 mg/kg