Catalog No. Size 价格库存数量
S0304-2 2mg solid ¥90
S0304-10 10mg solid ¥270


iFSP1 is a potent, selective and glutathione-independent inhibitor of ferroptosis suppressor protein 1 (FSP1) (AIFM2) with an EC50 of 103 nM. iFSP1 selectively induces ferroptosis in GPX4-knockout cells which overexpressed FSP1. iFSP1 is able to sensitize a variety of human cancer cell lines to the ferroptosis inducer, such as (1S, 3R)-RSL3 (HY-100218A).

Product information

CAS Number: 150651-39-1

Molecular Weight: 323.35

Formula: C20H13N5

Chemical Name: 13-amino-11-(4-methylphenyl)-1, 8-diazatricyclo[, ]trideca-2, 4, 6, 8, 10, 12-hexaene-10, 12-dicarbonitrile

Smiles: CC1C=CC(=CC=1)C1C(C#N)=C(N)N2C(=NC3=CC=CC=C23)C=1C#N


InChi: InChI=1S/C20H13N5/c1-12-6-8-13(9-7-12)18-14(10-21)19(23)25-17-5-3-2-4-16(17)24-20(25)15(18)11-22/h2-9H,23H2,1H3

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 20 mg/mL (61.85 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

iFSP1 (0.001-1 μM; 24 hours) inhibits the Gpx4-knockout cell growth as a dose-dependent manner, but does not inhibit the wild type cell growth. Treatment with the ferroptosis inhibitor Lip-1 protects GPX4- knockout cells from iFSP1-induced ferroptosis[1]. iFSP1 (0.001-1 μM; 24 hours) is less efficient than genetic deletion of FSP1, whereas iFSP1 treatment in the FSP1-knockout background had no additive effect to RSL3-induced ferroptosis. iFSP1 (3 μM; 24 hours) treatment results in an obvious toxicity of RSL3 in a panel of genetically engineered (FSP1-knockout) human cancer cell lines. AIFM2: the flavoprotein apoptosis-inducing factor mitochondria-associated 2 is a previously unrecognized anti-ferroptotic gene. AIFM2, which is renamed ferroptosis suppressor protein 1 (FSP1)


  1. Doll S, et al. FSP1 is a glutathione-independent ferroptosis suppressor.Nature. 2019 Nov;575(7784):693-698.

Products are for research use only. Not for human use.


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