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PR-171 (Carfilzomib) Proteasome Inhibitor

Cat.No.: S2853

Carfilzomib (PR-171) is an irreversible proteasome inhibitor with IC50 of <5 nM in ANBL-6 cells, displayed preferential in vitro inhibitory potency against the ChT-L activity in the β5 subunit, but little or no effect on the PGPH and T-L activities. Carfilzomib activates prosurvival autophagy and induces cell apoptosis.

PR-171 (Carfilzomib) Proteasome Inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 719.91

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Quality Control

Batch: Purity: 99.75%

99.75

Related Targets	HDAC Caspase Secretase MMP HCV Protease Cysteine Protease Tyrosinase HIV Protease DPP Serine Protease
Other Proteasome Inhibitors	MG132 Epoxomicin (BU-4061T) ONX-0914 (PR-957) Oprozomib Delanzomib VR23 PI-1840 Marizomib (Salinosporamide A) KSQ-4279 (USP1-IN-1) MG-115

Solubility in DMSO or water

In vitro
Batch:

DMSO : 100 mg/mL (138.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 50 mg/mL

Water : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (138.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 50 mg/mL

Water : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (138.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (138.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (138.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	2%DMSO 1 30%PEG300 2 2%TWEEN80 3 66%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (1.39mM)	Taking the 1 mL working solution as an example, add 20 μL of 50 mg/ml clarified DMSO stock solution to 300 μL of PEG300, mix evenly to clarify it; add 20 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 660 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	2%DMSO 1 30%PEG300 2 2%Tween80 3 66%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (1.39mM)	Taking the 1 mL working solution as an example, add 20 μL of 50 mg/ml clarified DMSO stock solution to 300 μL of PEG300, mix evenly to clarify it; add 20 μL of Tween80 to the above system, mix evenly to make it clear; then continue to add 660 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.

Read more about PR-171 (Carfilzomib) solubility in DMSO or water

Search by Cell Line | Choose a Research Area to Find Working Concentrations

Read more about PR-171 (Carfilzomib) working concentrations for cell culture treatment

PR-171 (Carfilzomib) is a potent inhibitor of 20S immunoproteasome (iCP) (8.1 nM), 20S proteasome β5 subunit (6 nM), 20S proteasome β1 subunit (2400 nM), 20S proteasome β2 subunit (3600 nM), 20S proteasome catalytic subunit β1 (2400 nM), 20S proteasome catalytic subunit β2 (3600 nM), 20S proteasome catalytic subunit β5 (6 nM), 20S proteasome, 20S proteasome (chymotrypsin-like activity), Proteasome β5 subunit (CT-L activity) (6 nM), Proteasome β1 subunit (C-L activity) (2400 nM), Proteasome β2 subunit (T-L activity) (3600 nM), Relapsed/refractory multiple myeloma, Glioblastoma, Lung cancer, Refractory renal cancer, Metastatic prostate cancer, VD, CVAE, Cardiac failure, Ischemic heart disease, Hypertension, AF, CAD, TMA. PR-171 (Carfilzomib) exhibits the greatest inhibitory potency toward 20S proteasome β5 subunit (IC50 = 6 nM).

Selectivity & Specificity Details

Mechanism of Action

Information	PR-171 (Carfilzomib) is a potent, selective, and irreversible 20S proteasome inhibitor. It affects NF-κB and apoptotic signaling by binding to the β5 subunit to block polyubiquitinated protein degradation, effectively inducing apoptosis and inhibiting tumor cell proliferation.
Read more about PR-171 (Carfilzomib) IC50 for cell-based and cell-free assays
Primary Applications and Mechanism of Action

Read more about PR-171 (Carfilzomib) Mechanism of Action

Chemical Information, Storage & Stability

Molecular Weight	719.91	Formula	C₄₀H₅₇N₅O₇	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	868540-17-4	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC(C)CC(C(=O)C1(CO1)C)NC(=O)C(CC2=CC=CC=C2)NC(=O)C(CC(C)C)NC(=O)C(CCC3=CC=CC=C3)NC(=O)CN4CCOCC4

Read more about storage & stability

Read more comparative analysis about PR-171 (Carfilzomib)

Frequently Asked Questions

Question 1:
How should I prepare a solution of it for an ongoing in vivo study?

Answer:
It can be dissolved in 2% DMSO/30% PEG 300/dd H₂O at 10 mg/ml as a suspension, and can be dissolved in 2% DMSO/castor oil at 10 mg/ml as a clear solution.

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration _(start) x Volume _(start) = Concentration _(final) x Volume _(final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

Serial Dilutions

Concentration (start):

Dilution-folds:

Computed Result

C1=C0/X	C1:		LOG(C1):
C2=C1/X	C2:		LOG(C2):
C3=C2/X	C3:		LOG(C3):
C4=C3/X	C4:		LOG(C4):
C5=C4/X	C5:		LOG(C5):
C6=C5/X	C6:		LOG(C6):
C7=C6/X	C7:		LOG(C7):
C8=C7/X	C8:		LOG(C8):