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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

147834-BULK:
147834-VAR:
147834-100G:
147834-500G:
147834-5G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCC3638
MKBX1358V
MKBV5046V
BCBH8903V
BCBF7342V

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Excited state dynamics of Michler's ketone: a laser flash photolysis study
Singh AK, et al.
Research on Chemical Intermediates, 27(1-2), 125-136 (2001)
M C Rezende et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 57(6), 1183-1190 (2001-06-23)
The preparation and the solvatochromic behavior of two dyes, obtained by condensation of N,N'-dimethylbarbituric acid with dimethylaminobenzaldehyde and with 4,4'-bis(N,N-dimethylamino)benzophenone (Michler's ketone) are described. The latter dye is rather sensitive to the polarity of the medium, and in particular, to
Synthesis of a novel addition-fragmentation agent based on Michler's ketone and its use as photo-initiator for cationic polymerization
Onen A and Yagci Y
Polymer, 42(16), 6681-6685 (2001)
Michler's ketone.
Report on carcinogens : carcinogen profiles, 12, 270-271 (2011-08-24)
New Push-Pull Dyes Derived from Michler?s Ketone For Polymerization Reactions Upon Visible Lights.
Tehfe M, et al.
Macromolecules, 46(10), 3761-3770 (2013)
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