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M9775

Sigma-Aldrich

4-(N-Maleimido)benzophenone

Synonym(s):

Benzophenone-4-maleimide

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About This Item

Empirical Formula (Hill Notation):
C17H11NO3
CAS Number:
92944-71-3
Molecular Weight:
277.27
MDL number:
MFCD00079465
UNSPSC Code:
12352100
PubChem Substance ID:
57654429
NACRES:
NA.22

reaction suitability

reagent type: cross-linking reagent

solubility

chloroform: 50 mg/mL
DMF: soluble

storage temp.

2-8°C

SMILES string

O=C1C=CC(=O)N1c2ccc(cc2)C(=O)c3ccccc3

InChI

1S/C17H11NO3/c19-15-10-11-16(20)18(15)14-8-6-13(7-9-14)17(21)12-4-2-1-3-5-12/h1-11H

InChI key

OZIZEXQRIOURIJ-UHFFFAOYSA-N

Application

A heterobifunctional cross-linking reagent containing a sulfhydryl-specific group and a photo-active group. Typically, coupled initially by thioether to molecule containing free sulfhydryl buffered at pH 6.8 (6.5-7.0). Second bonding occurs during UV irradiation (250 nm) via diradical excited state. Benzophenones demonstrate greater specificity for C-H insertion and are more stable in water than analogous reagents. In general they are more efficient in attachment because they may be repeatedly irradiated; however, a more intense irradiation may be required. The benzophenone is not sensitive to reduction compared to analogous reagents.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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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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Anders Myrhammar et al.
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Radionuclide molecular imaging of cancer-specific targets is a promising method to identify patients for targeted antibody therapy. Radiolabeled full-length antibodies however suffer from slow clearance, resulting in high background radiation. To overcome this problem, a pretargeting system based on complementary
Robert Ahrends et al.
Nucleic acids research, 34(10), 3169-3180 (2006-06-15)
To investigate protein-protein interaction sites in the DNA mismatch repair system we developed a crosslinking/mass spectrometry technique employing a commercially available trifunctional crosslinker with a thiol-specific methanethiosulfonate group, a photoactivatable benzophenone moiety and a biotin affinity tag. The XACM approach
K N Rajasekharan et al.
Archives of biochemistry and biophysics, 288(2), 584-590 (1991-08-01)
Experimental conditions which permit the exchange of smooth muscle 20-kDa light chain into skeletal muscle myosin are described. The hybridization does not result in the regulation of actin-activated ATPase activity of the hybrid myosin by smooth light chain phosphorylation. Further
Jessica DeLeon-Rangel et al.
FEBS letters, 587(7), 892-897 (2013-02-19)
The interaction of the membrane traversing stator subunits a and b of the rotary ATP synthase was probed by substitution of a single Cys into each subunit with subsequent Cu(2+) catalyzed cross-linking. Extensive interaction between the transmembrane (TM) region of
Mayumi Tamura et al.
Biochemical and biophysical research communications, 390(3), 581-584 (2009-10-13)
Relatively weak interactions between galectins and their potential ligands can hinder identification of physiological lectin ligands using conventional methods such as affinity purification. We have employed a combination of cysteine mutagenesis with chemical crosslinking using a photoactivatable sulfhydryl reagent benzophenone-4-maleimide
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