ETP-46321

Alias: ETP46321; ETP-46321; ETP 46321
Cat No.:V2910 Purity: ≥98%
ETP-46321 is a novel, potent and orally bioavailable inhibitor of PI3Kα and PI3Kδ with Kiappvalues of 2.3 nM and 14.2 nM, respectively inbiochemical assays.
ETP-46321 Chemical Structure CAS No.: 1252594-99-2
Product category: PI3K
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
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25mg
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

ETP-46321 is a novel, potent and orally bioavailable inhibitor of PI3Kα and PI3Kδ with Kiapp values of 2.3 nM and 14.2 nM, respectively in biochemical assays. PI3K is a crucial target for cancer therapeutics because a variety of human cancers exhibit deregulation of this signaling pathway. In a GEMM mouse tumor model fueled by a K-Ras(G12V) oncogenic mutation, TP-46321 PK/PD studies revealed time-dependent downregulation of AKT(Ser473) phosphorylation, which correlates with compound levels in tumor tissue. ETP-46321 therapy significantly slowed the growth of the tumor.

Biological Activity I Assay Protocols (From Reference)
Targets
p110α (Ki = 2.3 nM); PI3Kα-E545K (Ki = 1.77 nM); PI3Kα-E542K (Ki = 1.89 nM); ; p110δ (Ki = 14.2 nM); p110β (Ki = 170 nM); p110γ (Ki = 179 nM)
ln Vitro
The PI3K isoform ETP-46321 is chosen for screening. ETP-46321 has a higher Kiapp value (2.3 nM) than isoform. With regard to mTOR and 288 representative kinases, ETP-4632 has been profiled and demonstrated to be a potent PI3K α and δ inhibitor and kinase. ETP-46321 is also tested against three p110 mutant enzymes identified in human cancers (E542K, E545K, and H1047R), and it is equally potent against these mutants as the wild-type protein (Kiapp=2.33, 1.77, and 1.89 nM for PI3Kα-H1047R, PI3Kα-E545K, respectively). In the U2OS cell line, ETP-46321 has an IC50 of 8.3 nM, which inhibits the phosphorylation of AKT.
ln Vivo
ETP-46321, is selected for in vivo studies based on its appealing pharmacokinetic profile in BALB-C mice, low in vivo Clearance (0.6 L/h/Kg) and good oral bioavailability (90%). ETP-46321 exhibits a favorable pharmacokinetic profile in mice and is chosen for preliminary in vivo testing in a lung tumor mouse model driven by the K-RasG12V oncogenic mutation. PET imaging techniques show significant tumor growth inhibition and a decrease in tumor metabolic activity[1].
Animal Protocol
Mice; ETP-46321 (50 mg/kg, p.o.) is administered to BALB/C mice every day for three weeks. Four mice from each treatment group had their tumor volumes measured and compared to the initial volume at the start of the treatment.
References

[1]. Identification of ETP-46321, a potent and orally bioavailable PI3K α, δ inhibitor. Bioorg Med Chem Lett. 2012 May 15;22(10):3460-6.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C20H27N9O3S
Molecular Weight
473.55
Exact Mass
473.19576
Elemental Analysis
C, 50.73; H, 5.75; N, 26.62; O, 10.14; S, 6.77
CAS #
1252594-99-2
Related CAS #
1252594-99-2
Appearance
Solid powder
SMILES
CS(=O)(=O)N1CCN(CC1)CC2=CN3C=C(N=C(C3=N2)N4CCOCC4)C5=CN=C(N=C5)N
InChi Key
OHKDVDMWRKFZRB-UHFFFAOYSA-N
InChi Code
InChI=1S/C20H27N9O3S/c1-33(30,31)29-4-2-26(3-5-29)12-16-13-28-14-17(15-10-22-20(21)23-11-15)25-19(18(28)24-16)27-6-8-32-9-7-27/h10-11,13-14H,2-9,12H2,1H3,(H2,21,22,23)
Chemical Name
5-[2-[(4-methylsulfonylpiperazin-1-yl)methyl]-8-morpholin-4-ylimidazo[1,2-a]pyrazin-6-yl]pyrimidin-2-amine
Synonyms
ETP46321; ETP-46321; ETP 46321
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ≥33 mg/mL
Water: <1 mg/mL
Ethanol: N/A
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.1117 mL 10.5585 mL 21.1171 mL
5 mM 0.4223 mL 2.1117 mL 4.2234 mL
10 mM 0.2112 mL 1.0559 mL 2.1117 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
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