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Merck

264157

Caspase Modulator I, 1541

Synonym(s):

Caspase Modulator I, 1541, Caspase-6 Inhibitor XI, Procaspase-3 Activator II, Procaspase-6 Activator I, 8-Methoxy-2-oxo-2H-chromene-3-carboxylic acid-(3-imidazo[1,2-a]pyridin-2-yl-phenyl)-amide, Caspase-3 Inhibitor XV

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About This Item

Empirical Formula (Hill Notation):
C24H17N3O4
Molecular Weight:
411.41
NACRES:
NA.54
UNSPSC Code:
12352200
Assay:
≥95% (HPLC)
Form:
solid
Quality level:
Storage condition:
OK to freeze, protect from light
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assay

≥95% (HPLC)

Quality Level

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, protect from light

color

yellow

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

General description

A cell-permeable phenylimidazopyridinyl-methoxy coumarin compound that inhibits caspase-3 and caspase-6 activities (IC50 = 35 and 38 µM, respectively) by targeting both the large and small subunit active sites. Kinetic studies with 1541 and its 8-Hydroxy analog (Cat. No. 529663 ) indicate that at suboptimal inhibitor : proenzyme molar ratio (100:1 or less), the compound does not effectively occupies both active sites of and stabilizes the proenzyme in an “on-state” conformation that facilitates the subsequent autoproteolysis or autoactivation process via the unoccupied active site of procaspase-3 and -6 (EC50 = 2.4 and 2.8 µM, respectively). Shown to effectively induce apoptosis (up to 50 µM) in various cancer cell lines (IC50 ranges from 3.8 to 8.7 µM) in a caspase-3-dependent, but p53-, caspase-8-, and Bak-independent manner. Exhibits little inhibitory effect against active caspase-7 (30 nM) even at concentrations as high as 50 µM, nor does it activate procaspase-1 or -7 even after prolonged incubations upto 4 and 24 h, respectively.

Packaging

Packaged under inert gas

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

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