1. Cell Cycle/DNA Damage Cytoskeleton Apoptosis
  2. Microtubule/Tubulin Apoptosis
  3. Fosbretabulin disodium

Fosbretabulin disodium  (Synonyms: CA 4DP; CA 4P; Combretastatin A4 disodium phosphate)

Cat. No.: HY-17449 Purity: 99.47%
SDS COA Handling Instructions Technical Support

Fosbretabulin disodium (CA 4DP) is a tubulin destabilizing agent. Fosbretabulin disodium is the Combretastatin A4 proagent that selectively targets endothelial cells, induces regression of nascent tumour neovessels, reduces tumour blood flow and causes central tumour necrosis.

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

Fosbretabulin disodium Chemical Structure

Fosbretabulin disodium Chemical Structure

CAS No. : 168555-66-6

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10 mM * 1 mL in Water
ready for reconstitution
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Description

Fosbretabulin disodium (CA 4DP) is a tubulin destabilizing agent. Fosbretabulin disodium is the Combretastatin A4 proagent that selectively targets endothelial cells, induces regression of nascent tumour neovessels, reduces tumour blood flow and causes central tumour necrosis[1][3].

IC50 & Target

tubulin[1]

Cellular Effect
Cell Line Type Value Description References
A2780 GI50
0.32 μM
Compound: CA-4P; 3
Antiproliferative activity against human A2780 cells after 48 hrs by MTT assay
Antiproliferative activity against human A2780 cells after 48 hrs by MTT assay
[PMID: 30580241]
A-375 IC50
0.0016 μM
Compound: CA4P
Growth inhibition of human A375 cells measured after 48 hrs by MTS assay
Growth inhibition of human A375 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
A549 IC50
0.0234 μM
Compound: CA4P
Growth inhibition of human A549 cells by MTS assay
Growth inhibition of human A549 cells by MTS assay
[PMID: 27100701]
A549 GI50
0.16 μM
Compound: CA-4P; 3
Antiproliferative activity against human A549 cells after 48 hrs by MTT assay
Antiproliferative activity against human A549 cells after 48 hrs by MTT assay
[PMID: 30580241]
A549 IC50
0.4 μM
Compound: CA-4P
Antiproliferative activity against human A549 cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human A549 cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
Bel-7402 IC50
0.04 μM
Compound: CA-4p
Antiproliferative activity against human Bel-7402 cells measured after 48 hrs by SRB assay
Antiproliferative activity against human Bel-7402 cells measured after 48 hrs by SRB assay
[PMID: 32113125]
BXPC-3 GI50
0.23 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of human BxPC3 cells after 48 hrs by sulforhodamine B assay
Growth inhibition of human BxPC3 cells after 48 hrs by sulforhodamine B assay
[PMID: 22324723]
BXPC-3 GI50
0.23 μg/mL
Compound: CA4P
Antitumor activity against human BxPC3 cells by sulforhodamine B assay
Antitumor activity against human BxPC3 cells by sulforhodamine B assay
[PMID: 19228038]
Caov-3 cell line IC50
13.11 nM
Compound: CA4P
Antiproliferative activity against human Caov3 cells measured after 96 hrs by Celltiter-Glo assay
Antiproliferative activity against human Caov3 cells measured after 96 hrs by Celltiter-Glo assay
[PMID: 27718473]
CCRF-CEM IC50
0.011 μM
Compound: 7; CA-4P
Antiproliferative activity against human CEM cells measured after 96 hrs by Coulter counter method
Antiproliferative activity against human CEM cells measured after 96 hrs by Coulter counter method
[PMID: 30921759]
CCRF-CEM IC50
0.011 μM
Compound: 4; CA-4P
Antiproliferative activity against human CEM cells after 96 hrs by coulter counting method
Antiproliferative activity against human CEM cells after 96 hrs by coulter counting method
[PMID: 29471122]
CCRF-CEM IC50
95 nM
Compound: CA-4P, combretastatin A4P
Antiproliferative activity against human CEM cells after 96 hrs by Coulter counter method
Antiproliferative activity against human CEM cells after 96 hrs by Coulter counter method
[PMID: 25626146]
DU-145 GI50
0.0007 μg/mL
Compound: CA4P
Antitumor activity against human DU145 cells by sulforhodamine B assay
Antitumor activity against human DU145 cells by sulforhodamine B assay
[PMID: 19228038]
DU-145 IC50
0.0014 μM
Compound: CA4P
Growth inhibition of human DU145 cells measured after 48 hrs by MTS assay
Growth inhibition of human DU145 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
DU-145 GI50
0.00323 μM
Compound: CA-4P
Cytotoxicity against human DU145 cells assessed as growth inhibition measured after 48 hrs by SRB assay
Cytotoxicity against human DU145 cells assessed as growth inhibition measured after 48 hrs by SRB assay
[PMID: 31059248]
DU-145 GI50
0.00323 μM
Compound: CA4P
Cytotoxicity against human DU145 cells after 48 hrs by SRB assay
Cytotoxicity against human DU145 cells after 48 hrs by SRB assay
[PMID: 24183586]
DU-145 GI50
0.0072 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of human DU145 cells after 48 hrs by sulforhodamine B assay
Growth inhibition of human DU145 cells after 48 hrs by sulforhodamine B assay
[PMID: 22324723]
DU-145 GI50
0.016 μM
Compound: 3, CA4P
Cytotoxicity against human DU145 cells by SRB assay
Cytotoxicity against human DU145 cells by SRB assay
[PMID: 24016002]
HCT-116 IC50
0.0016 μM
Compound: CA4P
Growth inhibition of human HCT116 cells measured after 48 hrs by MTS assay
Growth inhibition of human HCT116 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
HCT-116 IC50
0.24 μM
Compound: CA-4P
Antiproliferative activity against human HCT116 cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human HCT116 cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
HeLa IC50
0.00043 μM
Compound: 2, CA4-P
Cytotoxicity against human HeLa cells by MTT assay
Cytotoxicity against human HeLa cells by MTT assay
[PMID: 19879758]
HeLa IC50
0.013 μM
Compound: 7; CA-4P
Antiproliferative activity against human HeLa cells measured after 3 days by Coulter counter method
Antiproliferative activity against human HeLa cells measured after 3 days by Coulter counter method
[PMID: 30921759]
HeLa IC50
0.013 μM
Compound: 4; CA-4P
Antiproliferative activity against human HeLa cells after 3 days by coulter counting method
Antiproliferative activity against human HeLa cells after 3 days by coulter counting method
[PMID: 29471122]
HeLa GI50
0.019 μM
Compound: CA-4P; 3
Antiproliferative activity against human HeLa cells after 48 hrs by MTT assay
Antiproliferative activity against human HeLa cells after 48 hrs by MTT assay
[PMID: 30580241]
HeLa IC50
0.56 μM
Compound: CA-4P
Antiproliferative activity against human HeLa cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human HeLa cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
HeLa IC50
79 nM
Compound: CA-4P, combretastatin A4P
Antiproliferative activity against human HeLa cells after 4 days by Coulter counter method
Antiproliferative activity against human HeLa cells after 4 days by Coulter counter method
[PMID: 25626146]
HepG2 IC50
0.002 μM
Compound: CA-4p
Antiproliferative activity against human HepG2 cells measured after 48 hrs by SRB assay
Antiproliferative activity against human HepG2 cells measured after 48 hrs by SRB assay
[PMID: 32113125]
HepG2 GI50
0.19 μM
Compound: CA-4P; 3
Antiproliferative activity against human HepG2 cells after 48 hrs by MTT assay
Antiproliferative activity against human HepG2 cells after 48 hrs by MTT assay
[PMID: 30580241]
HepG2 IC50
0.27 μM
Compound: CA-4P
Antiproliferative activity against human HepG2 cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human HepG2 cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
HMEC-1 IC50
0.0029 μM
Compound: 7; CA-4P
Antiproliferative activity against human HMEC1 cells measured after 4 days by Coulter counter method
Antiproliferative activity against human HMEC1 cells measured after 4 days by Coulter counter method
[PMID: 30921759]
HMEC-1 IC50
0.0029 μM
Compound: 4; CA-4P
Antiproliferative activity against human HMEC1 cells after 4 days by coulter counting method
Antiproliferative activity against human HMEC1 cells after 4 days by coulter counting method
[PMID: 29471122]
HMEC-1 IC50
2.9 nM
Compound: CA-4P, combretastatin A4P
Antiproliferative activity against human HMEC1 cells after 4 days by Coulter counter method
Antiproliferative activity against human HMEC1 cells after 4 days by Coulter counter method
[PMID: 25626146]
HT-29 GI50
0.062 μM
Compound: CA-4P; 3
Antiproliferative activity against human HT-29 cells after 48 hrs by MTT assay
Antiproliferative activity against human HT-29 cells after 48 hrs by MTT assay
[PMID: 30580241]
HUVEC GI50
8 nM
Compound: CA4P
Growth inhibition of HUVEC after 72 hrs by crystal violet staining-based assay
Growth inhibition of HUVEC after 72 hrs by crystal violet staining-based assay
[PMID: 27690431]
Jurkat EC50
15 nM
Compound: CA4P, Zybrestat
Cytotoxicity against human Jurkat cells assessed as cell viability after 48 hrs by trypan blue exclusion assay
Cytotoxicity against human Jurkat cells assessed as cell viability after 48 hrs by trypan blue exclusion assay
[PMID: 24387982]
K562 IC50
0.72 μM
Compound: 7
Cytotoxicity against human K562 cells assessed as growth inhibition after 5 days by MTT assay
Cytotoxicity against human K562 cells assessed as growth inhibition after 5 days by MTT assay
[PMID: 28143677]
KM-20L2 GI50
0.034 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of human KM20L2 cells after 48 hrs by sulforhodamine B assay
Growth inhibition of human KM20L2 cells after 48 hrs by sulforhodamine B assay
[PMID: 22324723]
KM-20L2 GI50
0.034 μg/mL
Compound: 1b, CA4P
Cytotoxicity against human KM20L2 cells after 48 hrs by sulforhodamine B assay
Cytotoxicity against human KM20L2 cells after 48 hrs by sulforhodamine B assay
[PMID: 16252907]
L1210 IC50
0.0021 μM
Compound: 4; CA-4P
Antiproliferative activity against mouse L1210 cells after 96 hrs by coulter counting method
Antiproliferative activity against mouse L1210 cells after 96 hrs by coulter counting method
[PMID: 29471122]
L1210 IC50
0.013 μM
Compound: 7; CA-4P
Antiproliferative activity against mouse L1210 cells measured after 96 hrs by Coulter counter method
Antiproliferative activity against mouse L1210 cells measured after 96 hrs by Coulter counter method
[PMID: 30921759]
L1210 IC50
82 nM
Compound: CA-4P, combretastatin A4P
Antiproliferative activity against mouse L1210 cells after 48 hrs by Coulter counter method
Antiproliferative activity against mouse L1210 cells after 48 hrs by Coulter counter method
[PMID: 25626146]
MCF7 IC50
0.002 μM
Compound: 2, CA4-P
Cytotoxicity against human MCF7 cells by MTT assay
Cytotoxicity against human MCF7 cells by MTT assay
[PMID: 19879758]
MCF7 IC50
0.011 μM
Compound: CA-4p
Antiproliferative activity against human MCF7 cells measured after 48 hrs by SRB assay
Antiproliferative activity against human MCF7 cells measured after 48 hrs by SRB assay
[PMID: 32113125]
MCF7 IC50
0.96 μM
Compound: CA-4P
Antiproliferative activity against human MCF7 cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human MCF7 cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
MDA-MB-231 IC50
0.0028 μM
Compound: CA4P
Growth inhibition of human MDA-MB-231 cells measured after 48 hrs by MTS assay
Growth inhibition of human MDA-MB-231 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
MDA-MB-231 GI50
0.065 μM
Compound: CA-4P; 3
Antiproliferative activity against human MDA-MB-231 cells after 48 hrs by MTT assay
Antiproliferative activity against human MDA-MB-231 cells after 48 hrs by MTT assay
[PMID: 30580241]
MDA-MB-231 IC50
173.3 nM
Compound: CA4P
Antiproliferative activity against human MDA-MB-231 cells measured after 96 hrs by Celltiter-Glo assay
Antiproliferative activity against human MDA-MB-231 cells measured after 96 hrs by Celltiter-Glo assay
[PMID: 27718473]
MDA-MB-435 IC50
8.75 nM
Compound: CA4P
Antiproliferative activity against human MDA-MB-435 cells measured after 96 hrs by Celltiter-Glo assay
Antiproliferative activity against human MDA-MB-435 cells measured after 96 hrs by Celltiter-Glo assay
[PMID: 27718473]
MGC-803 IC50
0.47 μM
Compound: CA-4P
Antiproliferative activity against human MGC803 cells after 72 hrs by CCK-8 assay
Antiproliferative activity against human MGC803 cells after 72 hrs by CCK-8 assay
[PMID: 30108925]
NCI-H460 GI50
0.0004 μg/mL
Compound: CA4P
Antitumor activity against human NCI-H460 cells by sulforhodamine B assay
Antitumor activity against human NCI-H460 cells by sulforhodamine B assay
[PMID: 19228038]
NCI-H460 GI50
0.00194 μM
Compound: CA-4P
Cytotoxicity against human NCI-H460 cells assessed as growth inhibition measured after 48 hrs by SRB assay
Cytotoxicity against human NCI-H460 cells assessed as growth inhibition measured after 48 hrs by SRB assay
[PMID: 31059248]
NCI-H460 GI50
0.00194 μM
Compound: CA4P
Cytotoxicity against human NCI-H460 cells after 48 hrs by SRB assay
Cytotoxicity against human NCI-H460 cells after 48 hrs by SRB assay
[PMID: 24183586]
NCI-H460 GI50
0.029 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of human NCI-H460 cells after 48 hrs by sulforhodamine B assay
Growth inhibition of human NCI-H460 cells after 48 hrs by sulforhodamine B assay
[PMID: 22324723]
NCI-H460 GI50
0.029 μg/mL
Compound: 1b, CA4P
Cytotoxicity against human NCI-H460 cells after 48 hrs by sulforhodamine B assay
Cytotoxicity against human NCI-H460 cells after 48 hrs by sulforhodamine B assay
[PMID: 16252907]
NCI-H460 GI50
0.066 μM
Compound: 3, CA4P
Cytotoxicity against human NCI-H460 cells by SRB assay
Cytotoxicity against human NCI-H460 cells by SRB assay
[PMID: 24016002]
P388 ED50
0.0004 μg/mL
Compound: 1b, CA4P
Cytotoxicity against mouse P388 cells after 48 hrs by sulforhodamine B assay
Cytotoxicity against mouse P388 cells after 48 hrs by sulforhodamine B assay
[PMID: 16252907]
P388 ED50
0.0004 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of mouse P388 cells after 48 hrs by Z1 Beckman/Coulter particle counter analysis
Growth inhibition of mouse P388 cells after 48 hrs by Z1 Beckman/Coulter particle counter analysis
[PMID: 22324723]
PBMC IC50
0.17 μM
Compound: CA4P
Growth inhibition of human PBMC cells measured after 48 hrs by MTS assay
Growth inhibition of human PBMC cells measured after 48 hrs by MTS assay
[PMID: 27100701]
PC-3 IC50
0.0062 μM
Compound: CA4P
Growth inhibition of human PC3 cells measured after 48 hrs by MTS assay
Growth inhibition of human PC3 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
SF-268 GI50
0.036 μg/mL
Compound: 1b, CA4P, Fosbretabulin
Growth inhibition of human SF268 cells after 48 hrs by sulforhodamine B assay
Growth inhibition of human SF268 cells after 48 hrs by sulforhodamine B assay
[PMID: 22324723]
SF-268 GI50
0.036 μg/mL
Compound: 1b, CA4P
Cytotoxicity against human SF268 cells after 48 hrs by sulforhodamine B assay
Cytotoxicity against human SF268 cells after 48 hrs by sulforhodamine B assay
[PMID: 16252907]
SK-OV-3 GI50
0.00119 μM
Compound: CA-4P
Cytotoxicity against human SKOV3 cells assessed as growth inhibition measured after 48 hrs by SRB assay
Cytotoxicity against human SKOV3 cells assessed as growth inhibition measured after 48 hrs by SRB assay
[PMID: 31059248]
SK-OV-3 GI50
0.00119 μM
Compound: CA4P
Cytotoxicity against human SKOV3 cells after 48 hrs by SRB assay
Cytotoxicity against human SKOV3 cells after 48 hrs by SRB assay
[PMID: 24183586]
SK-OV-3 IC50
0.0077 μM
Compound: CA4P
Growth inhibition of human SKOV3 cells measured after 48 hrs by MTS assay
Growth inhibition of human SKOV3 cells measured after 48 hrs by MTS assay
[PMID: 27100701]
TOV112D IC50
30.85 nM
Compound: CA4P
Antiproliferative activity against human TOV112D cells measured after 96 hrs by Celltiter-Glo assay
Antiproliferative activity against human TOV112D cells measured after 96 hrs by Celltiter-Glo assay
[PMID: 27718473]
In Vitro

Fosbretabulin disodium inhibits growth of leukemia P-388, pancreas BXPC-3,?neuroblast SK-N-SH, thyroid SW1736, lung-NSC NCI-H460, prostate DU-145, an pharynx FADU, with EC50s of 0.0029, 0.23, 0.00025, 0.00061, 0.00035, 0.00072, and 0.00045 μg/mL, respectively[2].

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

In Vivo

Fosbretabulin disodium (100 mg/kg; i.p.) increases the mean arterial blood pressure (MABP) at 1 and 6 h after administration and decreases the tumor blood flow in rats[3].

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

Animal Model: Male BD9 rats (7-9 weeks) bearing the s.c. implanted P22 tumor[3]
Dosage: 100 mg/kg
Administration: A single i.p. injections
Result: Significantly raised the MABP by about 30%, and reduced the heart rate at 1 h after administration.
Reduced the blood flow in the tumor.
Clinical Trial
Molecular Weight

440.29

Formula

C18H19Na2O8P

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

COC1=C(OC)C(OC)=CC(/C=C\C2=CC=C(OC)C(OP(O[Na])(O[Na])=O)=C2)=C1

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : 4.5 mg/mL (10.22 mM; Need ultrasonic and warming)

DMF : < 1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.2712 mL 11.3562 mL 22.7123 mL
5 mM 0.4542 mL 2.2712 mL 4.5425 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 14.29 mg/mL (32.46 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

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.
Calculation results:
Working 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).
Purity & Documentation

Purity: 99.47%

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 (sealed storage, away from moisture). 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
H2O 1 mM 2.2712 mL 11.3562 mL 22.7123 mL 56.7808 mL
5 mM 0.4542 mL 2.2712 mL 4.5425 mL 11.3562 mL
10 mM 0.2271 mL 1.1356 mL 2.2712 mL 5.6781 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Fosbretabulin disodium
Cat. No.:
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