PeptideDB

K 01-162 677746-25-7

K 01-162 677746-25-7

CAS No.: 677746-25-7

K 01-162 (K162) inhibits the formation of Aβ peptide fibers and eliminates its neurotoxicity. K 01-162 binds to Aβ42 p
Data collection:peptidedb@qq.com

This product is for research use only, not for human use. We do not sell to patients.

K 01-162 (K162) inhibits the formation of Aβ peptide fibers and eliminates its neurotoxicity. K 01-162 binds to Aβ42 peptide with EC50 of 80 nM. K 01-162 binds directly to AβO with Kd of 19 μM. K 01-162 is able to penetrate the brain and could be used in Alzheimer's research.

Physicochemical Properties


Molecular Formula C15H14NBR
Molecular Weight 288.18236
Exact Mass 287.031
CAS # 677746-25-7
PubChem CID 24858056
Appearance White to off-white solid powder
LogP 4.086
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 1
Rotatable Bond Count 1
Heavy Atom Count 17
Complexity 278
Defined Atom Stereocenter Count 0
InChi Key KABXKWWJTYSDTD-UHFFFAOYSA-N
InChi Code

InChI=1S/C15H14BrN/c1-17(2)13-4-6-15-11(9-13)7-10-8-12(16)3-5-14(10)15/h3-6,8-9H,7H2,1-2H3
Chemical Name

7-bromo-N,N-dimethyl-9H-fluoren-2-amine
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


ln Vitro K 01-162 (1 μM; 24 hours) decreases intracellular AβO levels [2]. K 01-162 (0.78-50 μM; 5 minutes) blocks the synaptic binding activity of AβO in mouse hippocampus neurons [2].
ln Vivo K 01-162 (100 μM; 0.25 μL/h intracerebroventricular infusion for 2 weeks) can reduce the body's amyloid load [2].
Cell Assay Western Blot Analysis[2]
Cell Types: MC65 Cell Line
Tested Concentrations: 1 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: diminished levels of SDS-stabilized Aβ trimers and larger aggregates.
Animal Protocol Animal/Disease Models: 5xFAD mice with cerebral Aβ amyloidosis [2]
Doses: 100 μM
Route of Administration: intracerebroventricular infusion; 100 μM 0.25 μL/h; continued for 2 weeks
Experimental Results: No obvious toxicity was caused, and hippocampus The amyloid burden was Dramatically diminished to 50% of simulated treatment levels.
References

[1]. Alzheimer's disease drug candidates stabilize A-β protein native structure by interacting with the hydrophobic core. Biophys J. 2011 Feb 16;100(4):1076-82.

[2]. Candidate anti-A beta fluorene compounds selected from analogs of amyloid imaging agents. Neurobiol Aging. 2010 Oct;31(10):1690-9.


Solubility Data


Solubility (In Vitro) DMSO : ~14.29 mg/mL (~49.59 mM)
Solubility (In Vivo) Solubility in Formulation 1: 1.43 mg/mL (4.96 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 14.3 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: ≥ 1.43 mg/mL (4.96 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 14.3 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: ≥ 1.43 mg/mL (4.96 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 14.3 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 3.4701 mL 17.3503 mL 34.7005 mL
5 mM 0.6940 mL 3.4701 mL 6.9401 mL
10 mM 0.3470 mL 1.7350 mL 3.4701 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.