Necrostatin-5

SKU:BHB21900615
Research Validated
Overview
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Necrostatin-5 (CAS 337349-54-9) is an inhibitor supplied as a solid. Reported to act on RIPK1. Relevant to Apoptosis research. Molecular formula C19H17N3O2S2, molecular weight 383.49 g/mol.
Purity 99.40%
CAS Number 337349-54-9
Molecular Weight 383.49 g/mol
Form Solid
Target RIPK1
Storage Powder -20°C; in solvent -80°C
Options selector
Catalog no. Size
HY-124546-5MG 5 mg
HY-124546-10MG 10 mg
HY-124546-25MG 25 mg
HY-124546-50MG 50 mg
HY-124546-100MG 100 mg
HY-124546-1MLX10MM 1 mL x 10 mM (in DMSO)
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size: 5 mg, 10 mg, 25 mg, 50 mg, 100 mg, 1 mL x 10 mM (in DMSO)
  • Lead time: varies by selected option.
  • Storage: Powder: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
  • Shipping: Room temperature in continental US; may vary elsewhere.
  • Upon receipt: transfer to -20°C as soon as possible.
Field Specification
Target RIPK1
Alternative names Nec-5
CAS no. 337349-54-9
Applications
  • Functional Assay (In Vitro)
Molecular weight 383.49
Molecular formula C19H17N3O2S2
Purity 99.40%
Activity
  • necroptosis
SMILES O=C(N1C2=CC=C(C=C2)OC)C3=C(N=C1SCC#N)SC4=C3CCCC4
Form Solid
Storage Powder: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
Shipping Room temperature in continental US; may vary elsewhere.
Catalog no. (Mfr.) HY-124546
Main SKU BHB21900615
Inhibitors

Compound Overview

Necrostatin-5, also known as Nec-5, is a potent inhibitor of necroptosis with an EC50 of 0.24 μM. It also inhibits RIP1 and has been reported to show cardioprotective effects[1][2][3]. It is supplied as a white to off-white solid (C19H17N3O2S2, MW 383.49) at 99.40% purity.

Physical & Chemical Properties

CAS Number 337349-54-9
Molecular Formula C19H17N3O2S2
Molecular Weight 383.49 g/mol
Purity 99.40%
Appearance Solid
Color White to off-white
SMILES O=C(N1C2=CC=C(C=C2)OC)C3=C(N=C1SCC#N)SC4=C3CCCC4
Target RIPK1
Signaling Pathway Apoptosis
Bioactivity Class necroptosis
Solubility In Vitro: DMSO: 5 mg/mL (13.04 mM; Requires sonication and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Storage Powder: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
Shipping Room temperature in continental US; may vary elsewhere.

Biological Activity

Activity & Target

[1][3]

necroptosis

0.24 μM (EC50)

Literature Cited

Sources cited in this description and in the In Vitro & In Vivo Data tab. Peer-reviewed publications that used this product are listed under References.

[1]. Wang K, et al. Structure-activity relationship analysis of a novel necroptosis inhibitor, Necrostatin-5. Bioorg Med Chem Lett. 2007 Mar 1;17(5):1455-65.

[2]. Dmitriev YV, et al. Study of cardioprotective effects of necroptosis inhibitors on isolated rat heart subjected to global ischemia-reperfusion. Bull Exp Biol Med. 2013 Jun;155(2):245-8.

[3]. González-Juarbe N, et al. Pore-Forming Toxins Induce Macrophage Necroptosis during Acute Bacterial Pneumonia. PLoS Pathog. 2015 Dec 11;11(12):e1005337.

Safety

For Research Use Only. Not for use in diagnostic or therapeutic procedures, and not for human or veterinary use. Handle in accordance with the Safety Data Sheet and your institution's chemical hygiene plan.

In Vitro

SolventSolubilityNotes
DMSO5 mg/mL (13.04 mM)requires sonication and warming and heat to 60°C; use freshly opened DMSO (absorbed moisture lowers solubility)

Aliquot the stock solution and store it at -80°C (up to 6 months) or -20°C (up to 1 month); avoid repeated freeze-thaw cycles.

Data provided by the manufacturer.

In Vitro

In a dose-dependent manner, Necrostatin-5 (1, 5, 10, 50, 100 μM) reduces LDH release[3]. At 100 μM, Necrostatin-5 shields MH-S cells from challenge with S. aureus, Listeria monocytogenes, S. pneumoniae, and uropathogenic Escherichia coli (UPEC), and also guards against pneumolysin-induced death[3].

In Vivo

In the isolated rat heart model, Necrostatin-5 (2.46 mg/kg; i.p.) shows cardioprotective effects[2].

Animal Model200-300 g, male Wistar rats[2]
Dosage2.46 mg/kg
AdministrationI.p.; 60 min before experiment
ResultReduced the infarction zone caused by 30-min global ischemia and 120-min reperfusion.

Data provided by the manufacturer. Numbered citations refer to the Literature Cited list in the product description.

Q.Why is there no price on some sizes?
A.Availability and lead time for those sizes are confirmed on inquiry. Send us the size you need and we will come back with price and lead time.
Q.Can this be used in humans or for diagnostics?
A.No. This product is supplied For Research Use Only. It is not for diagnostic or therapeutic procedures and not for human or veterinary use.

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Engineered MAP30ER: A plant toxin-derived platform for EGFR-Targeted delivery of protein and chemotherapeutic payloads. Biochem Biophys Res Commun 2025 Aug 30:776:152184. PMID: 40517671

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