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PF-06446846

Alias: PF‑06446846; PF-6446846; PF6446846; PF 06446846; PF06446846;
Cat No.:V4983 Purity: ≥98%
PF‑06446846 (PF06446846; PF‑6446846) is a novel and potent PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor that inhibits the translation of PCSK9 by inducing the ribosome to stall around codon, mediated by the sequence of the nascent chain within the exit tunnel.
PF-06446846
PF-06446846 Chemical Structure CAS No.: 1632250-49-7
Product category: New7
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes

Other Forms of PF-06446846:

  • PF-06446846 hydrochloride
Official Supplier of:
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Top Publications Citing lnvivochem Products
Purity & Quality Control Documentation

Purity: ≥98%

Product Description

PF‑06446846 (PF06446846; PF‑6446846) is a novel and potent PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor that inhibits the translation of PCSK9 by inducing the ribosome to stall around codon, mediated by the sequence of the nascent chain within the exit tunnel. PF-06446846 reduces plasma PCSK9 and total cholesterol levels in rats following oral dosing. PF-06446846 is highly selective for the inhibition of PCSK9 translation. Inhibiting PCSK9 can potentiate CD8 + T cell antitumor activity by promoting LDLR-mediated TCR recycling and signaling. Thus PCSK9/LDLR may serve as a potential target for cancer immunotherapy as well.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
PF-06446846 suppresses Huh7 cells from secreting PCSK9, with an IC50 of 0.3 μM[1]. PCSK9(1-35)-luciferase expression is inhibited by PF-06446846, with an IC50 of 2 μM[1]. Rat bone marrow and human CD34+ toxicity are demonstrated by PF-06446846 (compound 7f) [2].
ln Vivo
In vivo, PF-06446846 lowers total plasma cholesterol and circulating PCSK9 levels without appearing to be harmful [1].
Cell Assay
Cytotoxicity assay[2]
Cell Types: rat myeloid lineage(−) cells and CD34+ cells
Tested Concentrations: 0-20 µM
Incubation Duration: 72 hrs (hours)
Experimental Results: demonstrated cytotoxicity against rat Lin(−) with an IC50 value of 2.9 µM and 2.7 µM and human CD34+, respectively.
Animal Protocol
Animal/Disease Models: Male SD (SD (Sprague-Dawley)) (Crl:CD [SD] rats, 5 per group; 6-8 weeks old at start of dosing) [1]
Doses: 5, 15, and 50 mg/kg
Route of Administration: Every Daily oral administration for 14 days.
Experimental Results: Reduce plasma PCSK9, plasma total cholesterol and LDL-C (low-density lipoprotein cholesterol) in a dose-dependent manner without obvious toxicity.
References

[1]. Selective stalling of human translation through small-molecule engagement of the ribosome nascent chain. PLoS Biol. 2018 Apr 17;16(4):e1002628.

[2]. Small Molecule Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Inhibitors: Hit to Lead Optimization of Systemic Agents. J Med Chem. 2018 Jul 12;61(13):5704-5718.

Additional Infomation
PF-06446846 is a triazolopyridine that is 3H-[1,2,3]triazolo[4,5-b]pyridine substituted by a 4-{(3-chloropyridin-2-yl)[(3R)-piperidin-3-yl]carbamoyl}phenyl group at position 3. It is a potent inhibitor of PCSK9. It has a role as an antilipemic drug and an EC 3.4.21.61 (kexin) inhibitor. It is a monochloropyridine, a member of piperidines, a tertiary carboxamide, a member of benzamides and a triazolopyridine.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H20CLN7O
Molecular Weight
433.893502235413
Exact Mass
433.141
CAS #
1632250-49-7
Related CAS #
PF-06446846 hydrochloride;1632250-50-0
PubChem CID
86271238
Appearance
Typically exists as solid at room temperature
LogP
3.1
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
4
Heavy Atom Count
31
Complexity
617
Defined Atom Stereocenter Count
1
SMILES
C1C[C@H](CNC1)N(C2=C(C=CC=N2)Cl)C(=O)C3=CC=C(C=C3)N4C5=C(C=CC=N5)N=N4
InChi Key
FDTXHWQFIXYHCL-QGZVFWFLSA-N
InChi Code
InChI=1S/C22H20ClN7O/c23-18-5-2-12-25-20(18)29(17-4-1-11-24-14-17)22(31)15-7-9-16(10-8-15)30-21-19(27-28-30)6-3-13-26-21/h2-3,5-10,12-13,17,24H,1,4,11,14H2/t17-/m1/s1
Chemical Name
(R)-4-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-N-(3-chloropyridin-2-yl)-N-(piperidin-3-yl)benzamide
Synonyms
PF‑06446846; PF-6446846; PF6446846; PF 06446846; PF06446846;
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 2.3047 mL 11.5237 mL 23.0473 mL
5 mM 0.4609 mL 2.3047 mL 4.6095 mL
10 mM 0.2305 mL 1.1524 mL 2.3047 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.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
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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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
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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