Alogabat (example 8) is a positive isomeric modulator (PAM) of the GABAA α5 receptor (information from patent WO2018104419A1).

Physicochemical Properties

Molecular Formula	C21H23N5O4
Molecular Weight	409.4384
Exact Mass	409.175
CAS #	2230009-48-8
PubChem CID	134588268
Appearance	White to off-white solid powder
LogP	1.5
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	6
Heavy Atom Count	30
Complexity	562
Defined Atom Stereocenter Count	0
SMILES	O1C([H])([H])C([H])([H])C([H])(C([H])([H])C1([H])[H])N([H])C(C1C([H])=C([H])C(=NN=1)OC([H])([H])C1=C(C([H])([H])[H])ON=C1C1=C([H])N=C(C([H])([H])[H])C([H])=C1[H])=O
InChi Key	ACZCJTHHWMBFKC-UHFFFAOYSA-N
InChi Code	InChI=1S/C21H23N5O4/c1-13-3-4-15(11-22-13)20-17(14(2)30-26-20)12-29-19-6-5-18(24-25-19)21(27)23-16-7-9-28-10-8-16/h3-6,11,16H,7-10,12H2,1-2H3,(H,23,27)
Chemical Name	6-[[5-methyl-3-(6-methylpyridin-3-yl)-1,2-oxazol-4-yl]methoxy]-N-(oxan-4-yl)pyridazine-3-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)

Biological Activity

References

[1]. New isoxazolyl ether derivatives as gaba a alpha5 pam. Patent WO2018104419A1.

Solubility Data

Solubility (In Vitro)

DMSO: 33.33 mg/mL (81.40 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (6.11 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 25.0 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: ≥ 2.5 mg/mL (6.11 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 25.0 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: ≥ 2.5 mg/mL (6.11 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 25.0 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	2.4424 mL	12.2118 mL	24.4236 mL
	5 mM	0.4885 mL	2.4424 mL	4.8847 mL
	10 mM	0.2442 mL	1.2212 mL	2.4424 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.