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SML1644

Sigma-Aldrich

MRT68921 dihydrochloride

≥98% (HPLC)

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Synonym(s):
N-[3-[[5-Cyclopropyl-2-[(1,2,3,4-tetrahydro-2-methyl-6-isoquinolinyl)amino]-4-pyrimidinyl]amino]propyl]-cyclobutanecarboxamide dihydrochloride
Empirical Formula (Hill Notation):
C25H34N6O · 2HCl
CAS Number:
Molecular Weight:
507.50
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

H2O: 20 mg/mL, clear

storage temp.

2-8°C

SMILES string

CN(C1)CCC2=C1C=CC(NC3=NC=C(C4CC4)C(NCCCNC(C5CCC5)=O)=N3)=C2.[H]Cl.[H]Cl

InChI

1S/C25H34N6O.2ClH/c1-31-13-10-19-14-21(9-8-20(19)16-31)29-25-28-15-22(17-6-7-17)23(30-25)26-11-3-12-27-24(32)18-4-2-5-18;;/h8-9,14-15,17-18H,2-7,10-13,16H2,1H3,(H,27,32)(H2,26,28,29,30);2*1H

InChI key

NLKPLTWKINJHCK-UHFFFAOYSA-N

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1 of 4

This Item
SML0702SML2179SML0178
form

powder

form

powder

form

powder

form

powder

storage condition

desiccated

storage condition

desiccated

storage condition

protect from light

storage condition

desiccated

color

white to beige

color

white to light brown

color

white to beige

color

white to beige

solubility

H2O: 20 mg/mL, clear

solubility

H2O: 15 mg/mL, clear

solubility

DMSO: 2 mg/mL, clear (warmed)

solubility

H2O: ≥5 mg/mL

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

Application

MRT68921 dihydrochloride has been used:
  • as a specific inhibitor of Unc-51-like kinase 1 (ULK1) in SH-SY5Y neuroblastoma cells
  • as an inhibitor of ULK1 and ULK2 kinases in intrahepatic lymphocytes
  • as a ULK1 inhibitor to test its effect on attenuation of autophagosome accumulation in ubiquitin-specific peptidase 24 (USP24) knockdown containing human neuroglioma H4 cells

Biochem/physiol Actions

MRT68921 is a cell penetrant, potent and specific inhibitor of ULK1 and ULK2 kinases in vitro, which reduces ULK1 activity in cells and blocks autophagy induction. MRT68921 blocks mTOR dependent autophagy.
MRT68921 is cytotoxic and acts on oxidative stress signals to kill cancer cells, making it an effective tumor therapy agent.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Yiran Chen et al.
Cell death & disease, 11(8), 712-712 (2020-09-03)
Utilizing oxidative stress has recently been regarded as a potential strategy for tumor therapy. The NUAK family SNF1-like kinase 1 (NUAK1) is a critical component of the antioxidant defense system and is necessary for the survival of tumors. Therefore, NUAK1
Leo Swadling et al.
Cell reports, 30(3), 687-698 (2020-01-23)
Tissue-resident memory T cells have critical roles in long-term pathogen and tumor immune surveillance in the liver. We investigate the role of autophagy in equipping human memory T cells to acquire tissue residence and maintain functionality in the immunosuppressive liver environment. By
Julia A Thayer et al.
Autophagy, 16(1), 140-153 (2019-04-09)
Recent studies indicate a causative relationship between defects in autophagy and dopaminergic neuron degeneration in Parkinson disease (PD). However, it is not fully understood how autophagy is regulated in the context of PD. Here we identify USP24 (ubiquitin specific peptidase
Yasuomi Urano et al.
Autophagy, 14(11), 1943-1958 (2018-08-17)
PARK7/DJ-1 is a Parkinson disease- and cancer-associated protein that functions as a multifunctional protein involved in gene transcription regulation and anti-oxidative defense. Although PARK7 lacks the secretory signal sequence, it is secreted and plays important physiological and pathophysiological roles. Whereas
Anna M Schläfli et al.
Scientific reports, 11(1), 9011-9011 (2021-04-29)
ALK inhibitors effectively target EML4-ALK positive non-small cell lung cancer, but their effects are hampered by treatment resistance. In the present study, we asked whether ALK inhibition affects autophagy, and whether this may influence treatment response. Whereas the impact of

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