Name: Sirtinol
Brand: Selleck Chemicals
SKU: S2804
Rating: 5 (44 reviews)

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Quality Control

Purity: >97%

Cited in Nature Medicine for its top-tier quality
COA
NMR
Datasheet
SDS

97

Related Targets	HDAC JAK BET Histone Methyltransferase PKC PARP HIF PRMT EZH2 AMPK
Other Sirtuin Inhibitors	SRT1720 HCl Selisistat (EX-527) Fisetin 3-TYP AGK2 SRT2104 (GSK2245840) OSS_128167 SirReal2 Thiomyristoyl NRD167

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
human MCF7 cells	Proliferation assay	30 μM	24-72 h	Antiproliferative activity against human MCF7 cells at 30 uM after 24 to 72 hrs	24340169
human MCF7 cells	Function assay	50 μM	24 h	Inhibition of SIRT1 in human MCF7 cells assessed as increase in acetylation of p53 at lys 382 at 50 uM after 24 hrs by Western blot analysis	24340169
human U937 cells	Apoptosis assay	50 μM	45 h	Induction of apoptosis in human U937 cells at 50 uM after 45 hrs by flow cytometry	23189967
Hs683	Antiproliferative assay		72 hrs	Antiproliferative activity against human Hs683 cells after 72 hrs by MTT assay, IC50=33.9μM	28475330
U373	Antiproliferative assay		72 hrs	Antiproliferative activity against human U373 cells after 72 hrs by MTT assay, IC50=39.3μM	28475330
Hs683	Cell cycle assay		24 to 48 hrs	Cell cycle arrest in human Hs683 cells assessed as accumulation at G1 phase at IC50 after 24 to 48 hrs by propidium iodide staining-based flow cytometry	28475330
Hs683	Cell cycle assay		24 to 48 hrs	Cell cycle arrest in human Hs683 cells assessed as accumulation at G2/M phase at IC50 after 24 to 48 hrs by propidium iodide staining-based flow cytometry	28475330
U373	Cell cycle assay		24 to 48 hrs	Cell cycle arrest in human U373 cells assessed as accumulation at G2/M phase at IC50 after 24 to 48 hrs by propidium iodide staining-based flow cytometry	28475330
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight	394.47	Formula	C₂₆H₂₂N₂O₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	410536-97-9	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC(C1=CC=CC=C1)NC(=O)C2=CC=CC=C2N=CC3=C(C=CC4=CC=CC=C43)O

Solubility

In vitro
Batch:

DMSO : 23 mg/mL (58.3 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Clear solution	2%DMSO 1 30%PEG300 2 5%Tween80 3 63%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.400mg/ml (1.01mM)	Taking the 1 mL working solution as an example, add 20 μL of 20 mg/ml clarified DMSO stock solution to 300 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 630 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

Features	Sirtinol does not inhibit class I and class II HDACs.
Targets/IC₅₀/Ki	SIRT2 (Cell-free assay) 38 μM SIRT1 (Cell-free assay) 131 μM
In vitro	Sirtinol potently inhibits recombinant yeast Sir2p activity in vitro with IC50 of 68 μM. Unlike TSA, this compound has shown no effect on human HDAC1, indicating that it is a selective Sirtuin inhibitor. Unlike TSA, treatment of human primary fibroblasts with this chemical does not cause global changes in acetylation of histones and tubulin, nor does it induce a morphological change in the HeLa tumour cell line. Treatment with this inhibitor at 100 μM for 24 hours causes a sustained growth arrest in MCF-7 and H1299 cells for up to 9 days after its withdrawal. This treatment induces increased SA-β-gal activity and expression of PAI-1 in both MCF-7 and H1299 cells, more potently than Splitomicin. It inhibits colony formation at concentrations of 33 μM and higher in MCF-7 and H1299 cells, more effectively compared with Splitomicin. This compound (100 μM) significantly attenuates both basal and EGF- or IGF-I-stimulated phosphorylation of ERK, JNK/SAPK and p38 MAPK in MCF-7 and H1299 cells. It blocks the basal and EGF-stimulated activation of Ras. Consistent, basal and EGF- or IGF-I-stimulated phosphorylation of Raf-1, MEK, SEK1/MKK4 and MKK7 is attenuated in cells treated with this inhibitor. Inhibition of Sirt1 by this chemical enhances UV- and H₂O₂-induced p53 acetylation to enhance cell death in cultured skin keratinocytes. Blocking of Sirt1 by this treatment results in a significant inhibition in the growth and viability of human PCa cells while having no effect on normal prostate epithelial cells.
Kinase Assay	Inhibition in vitro of human Sirt2 activity
Kinase Assay	1.5 μg of recombinant human GST-Sirt2 (amino acids 18-340) are incubated at 30°C for 2 hours in 50 μL of assay buffer (50 mM Tris-HCl, pH 8.8, 4 mM MgCl₂, 0.2 mM dithiothreitol with different concentrations of Sirtinol, 50 μM NAD, and tritiated acetylated HeLa histones (1000 cpm), purified by acid extraction. HDAC activity is determined by scintillation counting of the ethyl acetate-soluble [³H]acetic acid.
In vivo	Administration of Sirtinol at 1 mg/kg attenuates pro-inflammatory cytokine production and protects against hepatic injury following trauma-hemorrhage in male Sprague-Dawley rats.
References	[1] https://pubmed.ncbi.nlm.nih.gov/11483616/ [2] https://pubmed.ncbi.nlm.nih.gov/16302818/ [3] https://pubmed.ncbi.nlm.nih.gov/16170353/ [4] https://pubmed.ncbi.nlm.nih.gov/18419717/ [5] https://pubmed.ncbi.nlm.nih.gov/18573234/ [6] https://pubmed.ncbi.nlm.nih.gov/18681908/ [7] https://pubmed.ncbi.nlm.nih.gov/19075016/ [8] https://pubmed.ncbi.nlm.nih.gov/21454220/

Applications

Methods	Biomarkers	Images	PMID
Growth inhibition assay	Cell viability		25184156
Western blot	SIRT1 / p-AKT / Foxo3a / β-catenin Foxp3 / RORγt Ac-H3K9 / Fibrobectin / Collagen 1 / α-SMA		25184156