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Safety Information

SML1554

Sigma-Aldrich

S3QEL 2

Synonym(s):

1-(3,4-Dimethylphenyl)-N,N-dipropyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

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About This Item

Empirical Formula (Hill Notation):
C19H25N5
CAS Number:
890888-12-7
Molecular Weight:
323.44
UNSPSC Code:
12352200
NACRES:
NA.77

form

powder

Quality Level

100

color

white to beige

solubility

DMSO: 5 mg/mL, clear

storage temp.

−20°C

Biochem/physiol Actions

S3QEL 2 is a selective inhibitor of superoxide production from the outer Q-binding site of mitochondrial respiratory complex site III (IIIQo) without altering oxidative phosphorylation. Site IIIQo is the primary source of mitochondrial reactive oxygen species (ROS) and has been implicated in a broad range of ROS-mediated signaling and pathology. S3QEL 2 lowered HIF-1α induction, protected against ROS-induced, JNK-mediated cell stress in pancreatic beta-cells, and decreased the oxidative stress-induced apoptosis that limits the yield of functional β-cells from intact islets.
S3QEL 2, a cell permeable substituted allopurinol, is also known as 1-(3,4-Dimethylphenyl)-N,N-dipropyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SML1554-10MG:
SML1554-BULK:
SML1554-VAR:
SML1554-50MG:

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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The Inhibitor Index: A Desk Reference on Enzyme Inhibitors, Receptor Antagonists, Drugs, Toxins, Poisons, Biologics, and Therapeutic Leads (2017)
Takujiro Homma et al.
Archives of biochemistry and biophysics, 700, 108775-108775 (2021-01-26)
Ferroptosis is a type of iron-dependent, non-apoptotic cell death, which is typically induced by cysteine starvation or by the inhibition of glutathione peroxidase 4 (GPX4) activity with the accompanying elevation in lipid peroxidation product levels. Despite the central role of
Remi Hatinguais et al.
Frontiers in immunology, 12, 641495-641495 (2021-04-13)
Reactive Oxygen Species (ROS) are highly reactive molecules that can induce oxidative stress. For instance, the oxidative burst of immune cells is well known for its ability to inhibit the growth of invading pathogens. However, ROS also mediate redox signalling
Andrew G Manford et al.
Cell, 183(1), 46-61 (2020-09-18)
Metazoan organisms rely on conserved stress response pathways to alleviate adverse conditions and preserve cellular integrity. Stress responses are particularly important in stem cells that provide lifetime support for tissue formation and repair, but how these protective systems are integrated

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