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147834

Sigma-Aldrich

Michler′s ketone

98%

Synonym(s):

4,4′-Bis(dimethylamino)benzophenone

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About This Item

Linear Formula:
[(CH3)2NC6H4]2CO
CAS Number:
90-94-8
Molecular Weight:
268.35
Beilstein:
790733
EC Number:
202-027-5
MDL number:
MFCD00008312
UNSPSC Code:
12162002
PubChem Substance ID:
24848830
NACRES:
NA.23

Assay

98%

form

powder

mp

174-176 °C (lit.)

SMILES string

CN(C)c1ccc(cc1)C(=O)c2ccc(cc2)N(C)C

InChI

1S/C17H20N2O/c1-18(2)15-9-5-13(6-10-15)17(20)14-7-11-16(12-8-14)19(3)4/h5-12H,1-4H3

InChI key

VVBLNCFGVYUYGU-UHFFFAOYSA-N

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General description

Michler′s ketone (MK) is a derivative of benzophenone that shows temperature dependent phosphorescence. It also exhibits triplet-triplet absorption spectra at a lower temperature.

Application

MK can be used as an additive that acts as a photoinitiator in the preparation of dyes. It can also be used as a precursor material in the synthesis of 4,4′-bis{N,N,dimethyl, N (2-ethoxy carbonyl-1-propenyl) ammonium hexafluoro antimonate}benzophenone (MKEA).

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H318,H341,H350

Hazard Classifications

Carc. 1B - Eye Dam. 1 - Muta. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cinzia Chiappe et al.
The journal of physical chemistry. A, 110(14), 4937-4941 (2006-04-08)
Michler's ketone (MK) and tetracyanoethene (TCNE) may be used as a UV-vis probe to investigate the solvent properties of ionic liquids (ILs). In molecular solvents, MK and TCNE give an electron donor-acceptor (EDA) complex, a zwitterionic species or a radical
Michler's ketone (4,4'-(dimethylamino)benzophenone.
Report on carcinogens : carcinogen profiles, 10, 157-157 (2004-08-26)
R F Struck et al.
Xenobiotica; the fate of foreign compounds in biological systems, 11(8), 569-567 (1981-08-01)
1. Studies on the metabolism of 14C-Michler's ketone (4,4'-bis-(dimethylamino)[carbonyl- 14C]benzophenone) in rats have revealed that this carcinogen is subject to demethylation, ring-hydroxylation and N-acetylation after adjacent methyl groups have been removed. 2 As identified by mass spectral analysis, microsomal metabolites
H B Li et al.
Journal of analytical toxicology, 24(8), 704-707 (2000-12-08)
Methylmercury is the most toxic among the mercury species. In order to provide a quick method to screen samples for methylmercury, a highly sensitive spectrophotometric method was established. The method was based on formation of the red complex of methylmercury
L G Rushing et al.
Journal of chromatographic science, 18(5), 224-232 (1980-05-01)
Sensitive and specific procedures are described for the analysis of residues of gentian violet in animal feed, human urine, and wastewater at levels of 1000 ppm down to 10 ppb, 1 ppb, and 10 ppb, respectively. The cleaned-up extracts were
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