Revision 1

#17802Store at RT

5 mg

Cell Signaling Technology

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For Research Use Only. Not for Use in Diagnostic Procedures.

Background

Necrostatin-1s, also known as Nec-1s or 7-Cl-O-Nec-1, is a potent and selective inhibitor of necroptosis. This analog of Necrostatin-1 (Nec-1) has been shown to be a specific receptor-interacting protein kinase (RIPK) 1 inhibitor that is metabolically more stable than the other variants (1). Research studies have found that Nec-1s is more selective than Nec-1 and Nec-1i (inactive variant) due to the fact that both molecules have an inhibitory affect on indoleamine 2,3-dioxygenase (IDO), a potent immunosuppressive molecule (2). Evidence also suggests that Nec-1s is around two-times more effective at RIPK1 inhibition than Nec-1 (IC50 = 210 nM vs. 494 nM) (1).

  1. Mikuš, P. et al. (2018) Molecules 23, .
  2. Takahashi, N. et al. (2012) Cell Death Dis 3, e437.

Molecular Formula

C13H12CIN3O2

Molecular Weight

277.7 g/mol

Purity

>98%

CAS

852391-15-2

Solubility

Soluble in DMSO at 25 mg/ml.

Storage

Store lyophilized at room temperature, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Directions for Use

Necrostatin-1s is supplied as a lyophilized powder. For a 20 mM stock, reconstitute 5 mg of powder in 900 μl of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

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    Revision 1
    #17802

    Necrostatin-1s

    Necrostatin-1s: Image 1 Expand Image
    使用 Phospho-RIP (Ser166) (D1L3S) Rabbit mAb #65746(上图)、RIP (D94C12) XP® Rabbit mAb #3493(中图)或 β-Actin (D6A8) Rabbit mAb #8457(下图)对未经处理的 (-) 或经过以下组合处理方法处理的 HT-29 细胞提取物进行蛋白质印迹分析:Z-VAD(OMe)-FMK #60332(Z-VAD,20 μM,先于其他化合物 30 分钟添加;+)、人 TNF-α #8902(hTNF-α,20 ng/ml,7 小时;+)、SM-164(100 nM,7 小时;+)和 necrostatin-1s(Nec-1s,规定浓度,7 小时)。
    Necrostatin-1s: Image 2 Expand Image
    Necrostatin-1s 的化学结构。