1. Protein Tyrosine Kinase/RTK
  2. FGFR
  3. FIIN-1

FIIN-1  (Synonyms: FGFR irreversible inhibitor-1)

Cat. No.: HY-15813 Purity: 99.11%
COA Handling Instructions

FIIN-1 is a potent, irreversible, selective FGFR inhibitor. FIIN-1 binds to FGFR1/2/3/4 and Flt1/4 with Kds of 2.8/6.9/5.4/120 nM and 32/120 nM respectively. The biochemical IC50s of FIIN-1 are 9.2, 6.2, 11.9, and 189 nM against FGFR1/2/3/4, respectively.

For research use only. We do not sell to patients.

FIIN-1 Chemical Structure

FIIN-1 Chemical Structure

CAS No. : 1256152-35-8

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2 mg USD 130 In-stock
5 mg USD 260 In-stock
10 mg USD 420 In-stock
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Based on 1 publication(s) in Google Scholar

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Description

FIIN-1 is a potent, irreversible, selective FGFR inhibitor. FIIN-1 binds to FGFR1/2/3/4 and Flt1/4 with Kds of 2.8/6.9/5.4/120 nM and 32/120 nM respectively. The biochemical IC50s of FIIN-1 are 9.2, 6.2, 11.9, and 189 nM against FGFR1/2/3/4, respectively[1].

IC50 & Target[1]

FGFR1

2.8 nM (Kd)

FGFR2

6.9 nM (Kd)

FGFR3

5.4 nM (Kd)

FGFR4

120 nM (Kd)

FGFR1

9.2 nM (IC50)

FGFR2

6.2 nM (IC50)

FGFR3

11.9 nM (IC50)

FGFR4

189 nM (IC50)

In Vitro

FIIN-1 binds to BLK, ERK5, KIT, MET, PDGFRB and VEGFR2 with Kds of 65 nM, 160, 420, 1000, 480 and 210 nM, respectively. The IC50s for Blk and Flt1 are 381 nM and 661 nM respectively[1].
FIIN-1 (14 nM-46 μM; 72 hours) inhibits proliferation of FGF signaling-sensitive cancer cell lines[1].
FIIN-1 (20 nM) inhibits iFGFR1 autophosphorylation and its downstream Erk1/2 almost completely.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay[1]

Cell Line: Stomach KATO III, SNU-16 and FU97 cells; Bladder RT4 cells; Kidney G-401 and G-402 cells; Lung SBC-3 and H520 cells; Pancreas A2.1 cells; Ovary A2780 and PA-1 cells; Bone RD-ES cells
Concentration:
Incubation Time: 72 hours
Result: The EC50 of 70 nM for Bladder RT4 cell.
The EC50 of 230 nM for Pancreas A2.1 cell.
The EC50 of 2.3 μM for Bone RD-ES cell.
EC50s of 0.22 and 4.6 μM for Ovary A2780 and PA-1 cells, respectively.
EC50s of 0.08 and 4.5 μM for Lung SBC-3 and H520 cells, respectively.
EC50s of 0.14 and 1.65 μM for Kidney G-401 and G-402 cells, respectively.
EC50s of 0.014, 0.03 and 0.65 μM for Stomach KATO III, SNU-16, FU97 cells, respectively.

Western Blot Analysis[1]

Cell Line: Serum-starved MCF10A cells that stably express iFGFR1
Concentration: 20 nM
Incubation Time: 30 minutes
Result: Blocked activation of iFGFR1 and phosphorylation of downstream effectors Erk1/2.
Molecular Weight

656.60

Formula

C32H39Cl2N7O4

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C=CC(NC1=CC=CC(CN(C2=NC(NCCCCN(CC)CC)=NC=C2CN3C4=C(Cl)C(OC)=CC(OC)=C4Cl)C3=O)=C1)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (152.30 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.5230 mL 7.6150 mL 15.2300 mL
5 mM 0.3046 mL 1.5230 mL 3.0460 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
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C2

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Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (3.17 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.08 mg/mL (3.17 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.5230 mL 7.6150 mL 15.2300 mL 38.0749 mL
5 mM 0.3046 mL 1.5230 mL 3.0460 mL 7.6150 mL
10 mM 0.1523 mL 0.7615 mL 1.5230 mL 3.8075 mL
15 mM 0.1015 mL 0.5077 mL 1.0153 mL 2.5383 mL
20 mM 0.0761 mL 0.3807 mL 0.7615 mL 1.9037 mL
25 mM 0.0609 mL 0.3046 mL 0.6092 mL 1.5230 mL
30 mM 0.0508 mL 0.2538 mL 0.5077 mL 1.2692 mL
40 mM 0.0381 mL 0.1904 mL 0.3807 mL 0.9519 mL
50 mM 0.0305 mL 0.1523 mL 0.3046 mL 0.7615 mL
60 mM 0.0254 mL 0.1269 mL 0.2538 mL 0.6346 mL
80 mM 0.0190 mL 0.0952 mL 0.1904 mL 0.4759 mL
100 mM 0.0152 mL 0.0761 mL 0.1523 mL 0.3807 mL
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FIIN-1 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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FIIN-1
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