Home Tools

Longdaysin

Catalog No. T5358 CAS 1353867-91-0

Longdaysin is an inhibitor of CK1α and CK1δ (IC50s: 5.6/8.8 μM). It also can inhibit ERK2 (IC50: 52 μM).

All products from TargetMol are for Research Use Only. Not for Human or Veterinary or Therapeutic Use.

Longdaysin, CAS 1353867-91-0

Pack Size	Availability	Price/USD
1 mg	In stock	$ 31.00
5 mg	In stock	$ 72.00
10 mg	In stock	$ 117.00
25 mg	In stock	$ 237.00
50 mg	In stock	$ 378.00
100 mg	In stock	$ 572.00
1 mL * 10 mM (in DMSO)	In stock	$ 79.00

Bulk Inquiry

Select Batch

Purity: 99.74%

Biological Description

Chemical Properties

Storage & Solubility Information

Description	Longdaysin is an inhibitor of CK1α and CK1δ (IC50s: 5.6/8.8 μM). It also can inhibit ERK2 (IC50: 52 μM).
Targets&IC50	CDK7:29 μM (cell free), ERK2:52 μM (cell free), CKIα:5.6 μM (cell free), CKIδ:8.8 μM (cell free)
In vitro	Longdaysin inhibited CKIδ, CKIα, ERK2, and CDK7 activities (IC50?=?8.8, 5.6, 52, and 29 μM, respectively), while it had much less effect on p38α. The period of CKIδ deficient cells was 1.1 h longer than that of wild type cells. Longdaysin lengthened the period in a dose-dependent manner in CKIδ deficient cells as well as in wild type cells [1]. In breast cancer Hs578T and MDA-MB-231 cells, micromolar concentrations of longdaysin attenuated the phosphorylation of LRP6 and DVL2 and reduced the expression of active β-catenin and total β-catenin, leading to the downregulation of Wnt target genes Axin2, DKK1, LEF1, and Survivin [2].
In vivo	In MDA-MB-231 breast cancer xenografts, treatment with longdaysin suppressed tumor growth in association with inhibition of Wnt/β-catenin signaling [2].
Kinase Assay	The CKIδ, CKIα, CDK7, and ERK2 kinase assays were performed on 384-well plates (10 μl volume). The reaction mixture was as follows: for CKIδ, 2 ng/μl CKIδ, 50 μM peptide substrate RKKKAEpSVASLTSQCSYSS corresponding to human PER2 Lys659-Ser674, and CKI buffer (40 mM Tris, 10 mM MgCl2, 0.5 mM DTT, 0.1 mg/ml BSA, pH 7.5); for CKIα, 1 ng/μl CKIα, 50 μM CKI peptide substrate, and CKI buffer; for CDK7, 5 ng/μl CDK7, 100 μM Cdk7/9 peptide substrate, and CKI buffer; for ERK2, 1.5 ng/μl ERK2, 0.8 μg/μl MBP, and ERK buffer (50 mM Tris, 10 mM MgCl2, 0.5 mM DTT, 1 mM EGTA, pH 7.5). Five hundred nl of compound was added to the mixture (final 5% DMSO), and the reaction was started by adding ATP (final 5 μM). After incubation at 30°C for 3h, 10 μl of Kinase-Glo Luminescent Kinase Assay reagent was added, and the luminescence was detected to determine the remaining ATP amount. All of the tested compounds did not inhibit luciferase activity directly [1].
Cell Research	2×10^5 cells were suspended in 100 μL serum-free medium containing the indicated concentrations of longdaysin, and then seeded in 24-transwell chambers with 8 μm pore membrane. The lower chamber contained medium with 20% FBS. After incubation at 37°C for 6 hours, the unmigrated cells on the upper side of membrane were removed by a cotton swab, and the migrated cells were stained with crystal violet and stained cells were photomicrographed. For invasion assays, the transwell chambers with 8 μm pore membranes were coated with Matrigel [2].
Animal Research	MDA-MB-231 cells were injected s.c. into the right flank of nude mice (1×10^7 cells per mouse), and tumor growth was closely observed and measured every 3 days. When the tumors reached approximately 50 mm3, the mice were randomly divided into two groups (eight mice per group) and i.p. injected with the vehicle (0.8% DMSO/12% Cremophor/8% ethanol in normal saline) or 5 mg/kg longdaysin in vehicle every 3 days. This longdaysin dosage was selected based on results from preliminary experiments, and was well tolerated in the mouse model. Subsequently, tumor volumes were measured with a caliper and calculated as follows: 0.523×(length)×(width)2. After treatment for 3 weeks, the mice were sacrificed and the tumor tissues were collected and weighed before being fixed in buffered formalin [2].

Molecular Weight	335.33
Formula	C16H16F3N5
CAS No.	1353867-91-0

Storage

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

DMSO: 100 mg/mL (298.21 mM)

H2O: Insoluble

References and Literature

1. Hirota T, et al. High-throughput chemical screen identifies a novel potent modulator of cellular circadian rhythms and reveals CKIα as a clock regulatory kinase. PLoS Biol. 2010 Dec 14;8(12):e1000559. 2. Xiong Y, et al. Longdaysin inhibits Wnt/β-catenin signaling and exhibits antitumor activity against breast cancer. Onco Targets Ther. 2019 Feb 5;12:993-1005.

Related compound libraries

This product is contained In the following compound libraries：

Anti-Cancer Active Compound Library Inhibitor Library Metabolism Compound Library Anti-Prostate Cancer Compound Library Anti-Aging Compound Library Anti-Pancreatic Cancer Compound Library HIF-1 Signaling Pathway Compound Library Cancer Cell Differentiation Compound Library Anti-Ovarian Cancer Compound Library Kinase Inhibitor Library

Related Products

Related compounds with same targets

A-674563 Tauroursodeoxycholate dihydrate EF24 5α-Hydroxycostic acid BIX02189 Bohemine Saponarin Boehmenan

Dose Conversion

You can also refer to dose conversion for different animals. More

In vivo Formulation Calculator (Clear solution)

Step One: Enter information below

Dosage

mg/kg

Average weight of animals

Dosing volume per animal

Number of animals

Step Two: Enter the in vivo formulation

% DMSO+

% +

% Tween 80+

% ddH₂O

%DMSO+

Calculate Reset

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 add μL PEG300， mix and clarify, next add μL Tween 80，mix and clarify, next add μL ddH₂O, mix and clarify.

Note:

Be sure to add the solvent(s) in order. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.

Calculator

Molarity Calculator

Dilution Calculator

Reconstitution Calculation

Molecular Weight Calculator

Mass

Concentration

Volume

Molecular Weight

Molarity Calculator allows you to calculate the

Mass of a compound required to prepare a solution of known volume and concentration
Volume of solution required to dissolve a compound of known mass to a desired concentration
Concentration of a solution resulting from a known mass of compound in a specific volume

See Example

An example of a molarity calculation using the molarity calculator
What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?
Enter 197.13 into the Molecular Weight (MW) box
Enter 10 into the Concentration box and select the correct unit (millimolar)
Enter 10 into the Volume box and select the correct unit (milliliter)
Press calculate
The answer of 19.713 mg appears in the Mass box

Concentration (Start)

Volume (Start)

Concentration (End)

Volume (End)

Calculator the dilution required to prepare a stock solution

Calculate the dilution required to prepare a stock solution
The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

See Example

An example of a dilution calculation using the Tocris dilution calculator
What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 ml and V1 is the unknown:
Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
Enter 20 into the Volume (final) box and select the correct unit (milliliter)
Press calculate
The answer of 100 microliter (0.1 ml) appears in the Volume (start) box

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Calculate the volume of solvent required to reconstitute your vial.

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial.
Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

Molecule Formula

Molecular Weight g/mol

Enter the chemical formula of a compound to calculate its molar mass and elemental composition

Tip: Chemical formula is case sensitive: C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed n the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

bottom

Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc.

Keywords

Longdaysin 1353867-91-0 Cell Cycle/Checkpoint MAPK Metabolism Stem Cells Casein Kinase ERK CDK Cyclin dependent kinase inhibit Inhibitor Extracellular signal regulated kinases inhibitor

Products are chemical reagents for research use only and are not intended for human use. We do not sell to patients.