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480065

Sigma-Aldrich

Necrostatin-1

Necrostatin-1, CAS 4311-88-0, is a cell-permeable, potent, and selective blocker of necroptosis (EC₅₀ = 494 nM in FADD-deficient Jurkat cells treated with TNF-α).

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Synonym(s):
Necrostatin-1, Nec-1, Necrosome Inhibitor I, 5-(Indol-3-ylmethyl)-(2-thio-3-methyl)hydantoin, Necrosis Inhibitor II, Methyl-thiohydantoin-tryptophan, MTH-Trp, Receptor-Interacting Protein 1 Inhibitor I, RIPK 1 Inhibitor I, Nec1, RIP1 Inhibitor I
Empirical Formula (Hill Notation):
C13H13N3OS
CAS Number:
Molecular Weight:
259.33
MDL number:
NACRES:
NA.77

Quality Level

assay

≥95% (HPLC)

form

crystalline solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

yellow

solubility

DMSO: 10 mg/mL
methanol: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C13H13N3OS/c1-16-12(17)11(15-13(16)18)6-8-7-14-10-5-3-2-4-9(8)10/h2-5,7,11,14H,6H2,1H3,(H,15,18)

InChI key

TXUWMXQFNYDOEZ-UHFFFAOYSA-N

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This Item
4800664800735.05224
Necrostatin-1 Necrostatin-1, CAS 4311-88-0, is a cell-permeable, potent, and selective blocker of necroptosis (EC₅₀ = 494 nM in FADD-deficient Jurkat cells treated with TNF-α).

480065

Necrostatin-1

Necrostatin-1, Inactive Control A cell-permeable N-demethylated thiohydantoin analog of Nec-1 that is devoid of anti-necroptotic properties and serves as a suitable inactive control.

480066

Necrostatin-1, Inactive Control

Sigma-Aldrich

480073

MLKL Inhibitor, Necrosulfonamide

Sigma-Aldrich

5.05224

Necrostatin-1

assay

≥95% (HPLC)

assay

≥95% (HPLC)

assay

≥95% (HPLC)

assay

≥99% (HPLC)

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

−70°C

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, avoid repeated freeze/thaw cycles, desiccated (hygroscopic), protect from light

General description

A cell-permeable, potent, and selective blocker of necroptosis (EC50 = 494 nM in FADD-deficient Jurkat cells treated with TNF-α), a nonapoptotic necrotic cell death pathway mediated by death-domain receptors (DRs) that offers neuroprotection in a murine model of ischemic brain injury. Exhibits no effect on DR-induced apoptosis. Also acts as a selective and ATP-competitive inhibitor of RIP1 kinase with negligible effect of RIP2 kinase activity. Nec-1 target appears to be a critical common necroptotic step upstream of execution events and downstream of DRs. Inactive control, Nec-1i, is also available (Cat. No. 480066).
A cell-permeable, potent, and selective blocker of necroptosis (EC50 = 494 nM in FADD-deficient Jurkat cells treated with TNF-α), a nonapoptotic necrotic cell death pathway mediated by death-domain receptors (DRs) that offers neuroprotection in a murine model of ischemic brain injury. Exhibits no effect on DR-induced apoptosis. Also acts as a selective and ATP-competitive inhibitor of RIP1 kinase with negligible effect of RIP2 kinase activity. Nec-1 target appears to be a critical common necroptotic step upstream of execution events and downstream of DRs. Inactive control, Nec-1i, is also available (Cat. No. 480066). Also available as a 25 mM solution in DMSO (Cat. No. 505224).

Biochem/physiol Actions

Cell permeable: yes
EC50 = 494 nM in blocking necrosis in FADD-deficient Jurkat cells treated with TNF-α
Primary Target
Blocker of necroptosis
Product competes with ATP.
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Degterev, A., et al. 2013. Nat. Chem. Biol.9, 192.
Degterev, A., et al. 2012. Cell Death Differ.20, 366.
Christofferson, D.E., et al. 2012. Cell Death Dis.3, e320.
Takahashi, N., et al. 2012. Cell Death Dis.3, e437.
Degterev, A., et al. 2008. Nat. Chem. Biol.4, 313.
Degterev, A., et al. 2005. Nat. Chem. Biol.1, 112.
Muller, A.J., et al. 2005. Nat. Med.11, 312.
Teng, X., et al. 2005. Bioorg. Med. Chem. Lett.15, 5039.

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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The underlying mechanism by which growth factor receptor-bound protein 2 (Grb2) regulates necroptosis remains unexplored. In the present study, we found that rasfonin, a fungal natural product and an activator of necroptosis, enhanced Grb2 binding to receptor-interacting serine/threonine kinase 1
Chi G Weindel et al.
Cell, 185(17), 3214-3231 (2022-07-31)
Although mutations in mitochondrial-associated genes are linked to inflammation and susceptibility to infection, their mechanistic contributions to immune outcomes remain ill-defined. We discovered that the disease-associated gain-of-function allele Lrrk2G2019S (leucine-rich repeat kinase 2) perturbs mitochondrial homeostasis and reprograms cell death
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FEBS letters, 594(10), 1586-1595 (2020-01-31)
Autophagy is an intracellular process that regulates the degradation of cytosolic proteins and organelles. Dying cells often accumulate autophagosomes. However, the mechanisms by which necroptotic stimulation induces autophagosomes are not defined. Here, we demonstrate that the activation of necroptosis with

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