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SML2903

Sigma-Aldrich

KIRA8

≥98% (HPLC)

Synonym(s):

(S)-2-Chloro-N-(6-methyl-5-((3-(2-(piperidin-3-ylamino)pyrimidin-4-yl)pyridin-2-yl)oxy)naphthalen-1-yl)benzenesulfonamide, 2-Chloro-N-[6-methyl-5-[[3-[2-[(3S)-3-piperidinylamino]-4-pyrimidinyl]-2-pyridinyl]oxy]-1-naphthalenyl]benzenesulfonamide, AMG 18, AMG-18, AMG18, Compound 18, IRE1α Kinase-Inhibiting RNase Attenuator 8

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About This Item

Empirical Formula (Hill Notation):
C31H29ClN6O3S
CAS Number:
1630086-20-2
Molecular Weight:
601.12
MDL number:
MFCD28404657
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

Biochem/physiol Actions

KIRA8 is an ATP-competitive, potent and selective IRE1α kinase inhibitor (IRE1α/β Ki = 2/120 nM) that attenuates IRE1α endonuclease activity (IRE1α/β IC50 = 5/55 nM) with good kinome selectivity. KIRA8 inhibits thapsigargin-induced UPR (IC50 = 99 nM; HT1080 XBP1-Luc cells) and shows therapeutic efficacy in murine models of type 1 diabetes (T1D), pulmonary fibrosis, multiple myeloma (MM), and pancreatic neuroendocrine tumors (PanNET) in vivo (30-50 mg/kg/day i.p.).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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[Detection of papillomavirus types 6/11, 16/18 and 31/33/35 using DNA/RNA hybridization. Initial experiences].
B Wartusch et al.
Gynakologische Rundschau, 29 Suppl 2, 402-404 (1989-01-01)
Shuhei Morita et al.
Cell metabolism, 25(4), 883-897 (2017-04-06)
In cells experiencing unrelieved endoplasmic reticulum (ER) stress, the ER transmembrane kinase/endoribonuclease (RNase)-IRE1α-endonucleolytically degrades ER-localized mRNAs to promote apoptosis. Here we find that the ABL family of tyrosine kinases rheostatically enhances IRE1α's enzymatic activities, thereby potentiating ER stress-induced apoptosis. During
Hannah C Feldman et al.
ACS chemical biology, 14(12), 2595-2605 (2019-10-15)
The dual kinase endoribonuclease IRE1 is a master regulator of cell fate decisions in cells experiencing endoplasmic reticulum (ER) stress. In mammalian cells, there are two paralogs of IRE1: IRE1α and IRE1β. While IRE1α has been extensively studied, much less
Jonathan M Harnoss et al.
Proceedings of the National Academy of Sciences of the United States of America, 116(33), 16420-16429 (2019-08-03)
Multiple myeloma (MM) arises from malignant immunoglobulin (Ig)-secreting plasma cells and remains an incurable, often lethal disease despite therapeutic advances. The unfolded-protein response sensor IRE1α supports protein secretion by deploying a kinase-endoribonuclease module to activate the transcription factor XBP1s. MM
Paul C Moore et al.
Cancer research, 79(24), 6190-6203 (2019-11-02)
Master regulators of the unfolded protein response (UPR), IRE1α and PERK, promote adaptation or apoptosis depending on the level of endoplasmic reticulum (ER) stress. Although the UPR is activated in many cancers, its effects on tumor growth remain unclear. Derived

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