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HPK1-IN-55

Cat No.:V105008 Purity: ≥98%
HPK1-IN-55 (Compound 19) is a selective, oral hematopoietic progenitor kinase 1 (HPK1) inhibitor with IC50 less than 0.51 nM.
HPK1-IN-55
HPK1-IN-55 Chemical Structure CAS No.: 3048537-58-9
Product category: MAP4K
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes
Official Supplier of:
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Product Description
HPK1-IN-55 (compound 19) is a selective and orally active hematopoietic progenitor kinase 1 (HPK1) inhibitor with IC50 of <0.51 nM. HPK1-IN-55 shows excellent kinase selectivity (637-fold and 1022-fold selectivity for HPK1 over GCK kinase and LCK respectively). HPK1-IN-55 has anticancer effects.
Biological Activity I Assay Protocols (From Reference)
Targets
HPK1 <0.51 nM (IC50)
ln Vitro
HPK1-IN-55 (0.5-10000 nM, 5 h) exhibits HPK1 enzyme inhibition in human PBMCs with an IC50 of <0.51 nM and inhibits cellular IL-2 secretion with an EC50 of 43.3 nM[1]. HPK1-IN-55 (0.001-100 nM) stimulates the release of IL-2 and IFN-γ in human PBMCs with EC50 values of 38.8 and 49.2 nM, respectively[1]. HPK1-IN-55 (0.00457-10 μM, 72 h) can promote T cell proliferation at low, medium and high concentrations in human immune T cells[1].
ln Vivo
HPK1-IN-55 (1.5-12 mg/kg, po, bid, 5 weeks) has good antitumor effects as a monotherapy and shows additive effects in the CT26 model and synergistic effects in the MC38 model when used in combination with anti-PD-1[1]. HPK1-IN-55 (1 mg/kg, iv, 2 mg/kg, po) showed moderate clearance (Clp = 11.41 mL/min/kg), good oral exposure (DNAUC (0−24 h) =560.5 h•ng/mL) and bioavailability (F % = 42.0) in monkeys[1]. HPK1-IN-55 (1.5-12 mg/kg, po, bid, 5 weeks) showed good target engagement in the CT26 model[1]. In vivo pharmacokinetic parameters of HPK1-In-55 HPK1-IN-55 beagle dogs IV Clp (mL/min/kg) Vd (L/kg) 11.44 5.58 beagle dogs PO DNAUC (0-24 h) (h・ng/ml) t1/2 (h) F (%) 563 7.65 41.5 cyno monkeys IV Clp (mL/min/kg) Vd (L/kg) 11.41 5.07 cyno monkeys PO DNAUC (0-24 h) (h・ng/ml) t1/2 (h) F (%) 560.5 8.73 42
Cell Assay
Cell Proliferation Assay [1]
Cell Types: human pan T cells Tested
Tested Concentrations: 0.00457, 0.01372, 0.04115, 0.12346, 0.37037, 1.11111, 3.33333, 10 μM
Incubation Duration: 72 h
Experimental Results: Increased T cell proliferation at low, intermediate and high Tested Tested Concentrationss in human pan T cells.
Animal Protocol
Animal/Disease Models: Balb/c mice bearing the CT26 murine colorectal cancer tumor[1] .
Doses: 3, 10, or 30 mg/kg
Route of Administration: p.o., b.i.d, 24 h
Experimental Results: Animals receiving a 10 and 30 mg/kg dose exhibited a free plasma concentration that inhibited pSLP76 > 50% in the spleen for more than 6 h, whereas animals receiving the 3 mg/kg dose did not exhibit this sustained reduction.

Animal/Disease Models: Balb/c mice injected with CT26 cells[1] .
Doses: 1.5, 12 mg/kg
Route of Administration: p.o., b.i.d, 5weeks
Experimental Results: Exhibited a good antitumor response with a tumor growth inhibition (TGI) value of 64.3%.

Animal/Disease Models: Balb/c mice injected with MC38 cells[1] .
Doses: 3, 12 mg/kg
Route of Administration: p.o., b.i.d, 5weeks
Experimental Results: Demonstrated similar antitumor efficacy in the MC38 model with a TGI value of 34.9% for the 3 mg/kg group and 59.4% for the 12 mg/kg group.
References

[1]. Peng J, et.al. Discovery of Pyridine-2-Carboxamides Derivatives as Potent and Selective HPK1 Inhibitors for the Treatment of Cancer. J Med Chem. 2024 Dec 12;67(23):21520-21544.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C30H34N8O3
Molecular Weight
554.64
Exact Mass
554.275
CAS #
3048537-58-9
PubChem CID
172677409
Appearance
Typically exists as solids at room temperature
Hydrogen Bond Donor Count
2
Rotatable Bond Count
6
Heavy Atom Count
41
Complexity
945
Defined Atom Stereocenter Count
0
SMILES
CN1CC2=C(C13CCN(CC3)C4COC4)C=CC(=N2)NC5=CC(=C(N=C5C(=O)N)C6=C7C(=CC=C6)N(C=N7)C)OC
InChi Key
IKGOYMIPWBVCQZ-UHFFFAOYSA-N
InChi Code
InChI=1S/C30H34N8O3/c1-36-17-32-26-19(5-4-6-23(26)36)27-24(40-3)13-21(28(35-27)29(31)39)33-25-8-7-20-22(34-25)14-37(2)30(20)9-11-38(12-10-30)18-15-41-16-18/h4-8,13,17-18H,9-12,14-16H2,1-3H3,(H2,31,39)(H,33,34)
Chemical Name
5-methoxy-6-(1-methylbenzimidazol-4-yl)-3-[[6-methyl-1'-(oxetan-3-yl)spiro[7H-pyrrolo[3,4-b]pyridine-5,4'-piperidine]-2-yl]amino]pyridine-2-carboxamide
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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 1.8030 mL 9.0149 mL 18.0297 mL
5 mM 0.3606 mL 1.8030 mL 3.6059 mL
10 mM 0.1803 mL 0.9015 mL 1.8030 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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An example of molarity calculation using the molarity calculator is shown below:
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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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

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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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

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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:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in 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.
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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.

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