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96669

Sigma-Aldrich

7-Diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin

suitable for fluorescence, BioReagent, ≥90% (HPCE)

Synonym(s):

1H-Pyrrole-2,5-dione, 1-(4-(7-(diethylamino)-4-methyl-2-oxo-2H-1-benzopyran-3-yl)phenyl)-, CPM

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About This Item

Empirical Formula (Hill Notation):
C24H22N2O4
CAS Number:
Molecular Weight:
402.44
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.32

product line

BioReagent

Assay

≥90% (HPCE)

form

solid

fluorescence

λex 391 nm; λem 472 nm in methanol: 2-mercaptoethanol

suitability

suitable for fluorescence

storage temp.

−20°C

SMILES string

CCN(CC)c1ccc2C(C)=C(C(=O)Oc2c1)c3ccc(cc3)N4C(=O)C=CC4=O

InChI

1S/C24H22N2O4/c1-4-25(5-2)18-10-11-19-15(3)23(24(29)30-20(19)14-18)16-6-8-17(9-7-16)26-21(27)12-13-22(26)28/h6-14H,4-5H2,1-3H3

InChI key

YGIABALXNBVHBX-UHFFFAOYSA-N

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Application

Fluorescence probe for glutathione for intact cells; specific advantages: only thio derivative fluoresces, high quantum yield and good Stokes shift

Biochem/physiol Actions

Used to monitor release of thiols, quantitate thiol in microplate reactions, and to distinguish proliferating cancer cells by nucleolar protein staining.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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D J Steenkamp
The Biochemical journal, 292 ( Pt 1), 295-301 (1993-05-15)
Methods for the qualitative and quantitative analysis of thiols by means of the fluorogenic reagent 7-diethylamino-3-(4'-maleimidylphenyl)-4-methylcoumarin are described, with particular reference to the trypanosomatid metabolites glutathionylspermidine (GSH-spermidine) and trypanothione. Second-order rate constants for the derivatization of seven different thiols under
W Feng et al.
The Journal of biological chemistry, 275(46), 35902-35907 (2000-09-22)
Inositol 1,4,5-trisphosphate receptors (IP(3)R) and ryanodine receptors (RyR) mediate the release of endoplasmic and sarcoplasmic reticulum (ER/SR) Ca(2+) stores and regulate Ca(2+) entry through voltage-dependent or ligand-gated channels of the plasma membrane. A prominent property of ER/SR Ca(2+) channels is
F C Ayers et al.
Analytical biochemistry, 154(1), 186-193 (1986-04-01)
A microfluorometric assay for thiols has been developed using the thiol-specific fluorochrome N-[4-(7-diethylamino-4-methyl-3-coumarinyl)phenyl]maleimide (CPM). The technique may be used to quantitate either cellular or plasma thiols over a range of 0.01 to 3.0 nmol and may be used with as
Victor Goncalves et al.
Analytical biochemistry, 421(1), 342-344 (2011-11-05)
N-myristoylation is the irreversible attachment of a C(14) fatty acid, myristic acid, to the N-terminal glycine of a protein via formation of an amide bond. This modification is catalyzed by myristoyl-coenzyme A (CoA):protein N-myristoyltransferase (NMT), an enzyme ubiquitous in eukaryotes
Alice Talpin et al.
Arthritis research & therapy, 16(4), 417-417 (2014-08-22)
This study aimed to compare the functional capacity and gene expression profile of monocyte-derived dendritic cells (MD-DCs) in HLA-B27+ axial spondyloarthritis (SpA) patients and healthy controls. MD-DCs were differentiated with interleukin 4 (IL-4) and granulocyte-macrophage colony-stimulating factor (GM-CSF) for seven

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