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U-104

Alias: MST-104, SLC0111; SLC 0111; U-104;NSC 213841; MST104; MST 104; NSC-213841; NSC213841;SLC-0111; U104; U 104.
Cat No.:V0895 Purity: ≥98%
U-104 (MST-104; U104; SLC-0111; NSC-213841) is a novel and potent inhibitor of transmembrane carbonic anhydrase (CA) with potential antineoplastic activity.
U-104
U-104 Chemical Structure CAS No.: 178606-66-1
Product category: Carbonic Anhydrase
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

U-104 (MST-104; U104; SLC-0111; NSC-213841) is a novel and potent inhibitor of transmembrane carbonic anhydrase (CA) with potential antineoplastic activity. It inhibits CA IX and CA XII with Ki values of 45.1 nM and 4.5 nM respectively. U-104 shows high in vivo antitumor efficacy in Balb/c mice orthotopically implanted with 4T1 cells.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
U-104 (SLC-0111) is a strong inhibitor of exosomes[3]. For CA I (Ki=5080 nM) and CA II (Ki=9640 nM), U-104 exhibits modest inhibition[1]. Under hypoxic conditions, U-104 (50 μM) inhibits the mesenchymal phenotype in the population of cancer stem cells in 4T1 cells. This effect lasts for 72 hours. In metastatic MDA-MB-231 LM2 -4Luc+ cells, U-104 (<50 μM) markedly and dose-dependently decreases migration, causing the cells to develop as compact colonies resembling those of the parent MDA-MB-231 cells[2].
ln Vivo
In mice implanted orthotopically with MDA-MB-231 LM2-4Luc+ cells, U-104 (19, 38 mg/kg; daily; for 27 days) suppresses the formation of primary tumors. The 4T1 experimental metastatic mouse model exhibits inhibition of metastasis formation in response to U-104 (19 mg/kg; daily; for 27 days; 5 days)[1]. ?When MDA-MB-231 LM2-4Luc+ cells are orthotopically implanted in NOD/SCID mice, U-104 (38 mg/kg; ip; 11–27 days) dramatically suppresses the number of cancer stem cells and slows the formation of primary tumors[2]. ?Balb/c mice orthotopically implanted with 4T1 cells exhibit a substantial delay in tumor formation when U-104 (50 mg/kg; oral gavage; continuously for 4 days and halted for 1 day; from 10 to 30 days) is administered[2].
Animal Protocol
Dissolved in 55.6% PEG 400, 11.1% ethanol and 33% water; 5 mg/kg; oral gavage
Balb/c mice orthotopically implanted with 4T1 cells.
References

[1]. Targeting tumor hypoxia: suppression of breast tumor growth and metastasis by novel carbonic anhydrase IX inhibitors. Cancer Res. 2011 May 1;71(9):3364-76.

[2]. Targeting carbonic anhydrase IX depletes breast cancer stem cells within the hypoxic niche. Oncogene. 2013 Oct 31;32(44):5210-9.

[3]. Advances in the discovery of exosome inhibitors in cancer. J Enzyme Inhib Med Chem. 2020 Dec;35(1):1322-1330.

Additional Infomation
CAIX Inhibitor SLC-0111 is a sulfonamide carbonic anhydrase inhibitor with potential antineoplastic activity. Upon administration, CAIX inhibitor SLC-0111 inhibits tumor-associated carbonic anhydrase IX (CAIX), an hypoxia-inducible transmembrane glycoprotein that catalyzes the reversible reaction and rapid interconversion of carbon dioxide and water to carbonic acid, protons, and bicarbonate ions. This prevents both the acidification of the tumor's extracellular microenvironment and cytoplasmic alkalization. This increases cell death in CAIX-expressing, hypoxic tumors. CAIX is overexpressed in various tumors and plays a key role in intra- and extracellular pH regulation, cancer cell progression, survival, migration and invasion; it is also involved in resistance to both chemo- and radiotherapy.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H12FN3O3S
Molecular Weight
309.32
Exact Mass
309.058
CAS #
178606-66-1
Related CAS #
178606-66-1
PubChem CID
310360
Appearance
White to off-white solid powder
Density
1.5±0.1 g/cm3
Melting Point
242-243℃
Index of Refraction
1.673
LogP
2.12
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
3
Heavy Atom Count
21
Complexity
450
Defined Atom Stereocenter Count
0
InChi Key
YJQZNWPYLCNRLP-UHFFFAOYSA-N
InChi Code
InChI=1S/C13H12FN3O3S/c14-9-1-3-10(4-2-9)16-13(18)17-11-5-7-12(8-6-11)21(15,19)20/h1-8H,(H2,15,19,20)(H2,16,17,18)
Chemical Name
1-(4-fluorophenyl)-3-(4-sulfamoylphenyl)urea
Synonyms
MST-104, SLC0111; SLC 0111; U-104;NSC 213841; MST104; MST 104; NSC-213841; NSC213841;SLC-0111; U104; U 104.
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)
DMSO: 62 mg/mL (200.4 mM)
Water:< 1 mg/mL
Ethanol:< 1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (6.72 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% 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 20.8 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: ≥ 2.08 mg/mL (6.72 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 20.8 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.

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Solubility in Formulation 3: ≥ 2.08 mg/mL (6.72 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 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 30% PEG400+0.5% Tween80+5% propylene glycol:30mg/mL

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.2329 mL 16.1645 mL 32.3290 mL
5 mM 0.6466 mL 3.2329 mL 6.4658 mL
10 mM 0.3233 mL 1.6164 mL 3.2329 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT05025722 Completed Other: Non Interventional Pseudoxanthoma Elasticum Daiichi Sankyo August 30, 2021
NCT04459585 Completed Has Results Drug: Dabigatran Etexilate Mesylate
Drug: Quizartinib
Healthy Subjects
Drug-drug Interaction
Daiichi Sankyo Co., Ltd. August 28, 2020 Early Phase 1
Biological Data
  • U-104

    The metastatic 4T1 primary tumor is a valid preclinical model of hypoxia-induced CAIX expression.Cancer Res.2011 May 1;71(9):3364-76.
  • U-104

    Silencing CAIX expression in metastatic 4T1 cells inhibits cell survival and alters pHe in hypoxia.Cancer Res.2011 May 1;71(9):3364-76.
  • U-104

    Growth of primary breast tumors characterized by hypoxia requires the expression of CAIX.Cancer Res.2011 May 1;71(9):3364-76.
  • U-104

    Inhibition of CAIX expression or activity attenuates metastasis of 4T1 mouse mammary tumors.Cancer Res.2011 May 1;71(9):3364-76.
  • U-104

    Targeting CAIX activity with selective small molecule inhibitors of CAIX attenuates the growth of mouse and human breast tumors.Cancer Res.2011 May 1;71(9):3364-76.
  • U-104

    Novel selective small molecule inhibitors of CAIX inhibit metastasis formation by 4T1 mammary tumor cells.Cancer Res.2011 May 1;71(9):3364-76.
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