SBP-3264 is a valuable chemical probe for understanding the role of STK3 and STK4 in acute myeloid leukemia (AML).

Physicochemical Properties

Molecular Formula	C19H20CLN5O
Molecular Weight	369.848002433777
Exact Mass	369.135
CAS #	2869148-13-8
PubChem CID	162366980
Appearance	Off-white to light yellow solid powder
Density	1.38±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)
LogP	3.2
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	3
Heavy Atom Count	26
Complexity	498
Defined Atom Stereocenter Count	0
InChi Key	AYRVYPOFYQSRNH-UHFFFAOYSA-N
InChi Code	InChI=1S/C19H20ClN5O/c1-12(26)24-15-5-7-25(8-6-15)19-17-16(10-21-18(17)22-11-23-19)13-3-2-4-14(20)9-13/h2-4,9-11,15H,5-8H2,1H3,(H,24,26)(H,21,22,23)
Chemical Name	N-[1-[5-(3-chlorophenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]piperidin-4-yl]acetamide
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 Note: This product requires protection from light (avoid light exposure) during transportation and storage.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Inhibitors of the Hippo Pathway Kinases STK3/MST2 and STK4/MST1 Have Utility for the Treatment of Acute Myeloid Leukemia. J Med Chem. 2021 Nov 22.

Solubility Data

Solubility (In Vitro)

DMSO: 62.5 mg/mL (168.99 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.08 mg/mL (5.62 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.08 mg/mL (5.62 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. 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. Solubility in Formulation 3: ≥ 2.08 mg/mL (5.62 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.7038 mL	13.5190 mL	27.0380 mL
	5 mM	0.5408 mL	2.7038 mL	5.4076 mL
	10 mM	0.2704 mL	1.3519 mL	2.7038 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.