LP44 (HCl) is a selective 5-HT7 agonist with Ki of 0.22 nM. LP44 (HCl) induces hypothermic effects in a dose-dependent fashion by intracerebroventricular injection. LP44 (HCl) does not cause a significant hypothermic response when administered intraperitoneally.

Physicochemical Properties

Molecular Formula	C27H37N3OS.HCL
Molecular Weight	488.12812
Exact Mass	487.242
CAS #	824958-12-5
PubChem CID	11225543
Appearance	White to off-white solid powder
LogP	6.48
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	9
Heavy Atom Count	33
Complexity	565
Defined Atom Stereocenter Count	0
InChi Key	DWGKCWWWKHCVDH-UHFFFAOYSA-N
InChi Code	InChI=1S/C27H37N3OS.ClH/c1-32-26-15-7-6-14-25(26)30-20-18-29(19-21-30)17-8-2-3-16-27(31)28-24-13-9-11-22-10-4-5-12-23(22)24;/h4-7,10,12,14-15,24H,2-3,8-9,11,13,16-21H2,1H3,(H,28,31);1H
Chemical Name	6-[4-(2-methylsulfanylphenyl)piperazin-1-yl]-N-(1,2,3,4-tetrahydronaphthalen-1-yl)hexanamide;hydrochloride
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: Please store this product in a sealed and protected environment, avoid exposure to moisture.
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

ln Vivo	CBA mice respond to LP44 (HCl) (5.1, 10.3, 20.5, 41.0 nmol; icv) with a dose-dependent cooling effect [1].
References	[1]. On the role of brain 5-HT7 receptor in the mechanism of hypothermia: comparison with hypothermia mediated via 5-HT1A and 5-HT3 receptor. Neuropharmacology. 2011 Dec;61(8):1360-5.

Solubility Data

Solubility (In Vitro)

DMSO : ~100 mg/mL (~204.86 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (5.12 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 (5.12 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 (5.12 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	2.0486 mL	10.2432 mL	20.4863 mL
	5 mM	0.4097 mL	2.0486 mL	4.0973 mL
	10 mM	0.2049 mL	1.0243 mL	2.0486 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.