Ko 143 NEW
| Price | $39 | $64 | $113 |
| Package | 2mg | 5mg | 10mg |
| Supply Ability: | 10g |
| Update Time: | 2026-05-11 |
Product Details
| Product Name: Ko 143 | CAS No.: 461054-93-3 |
| Purity: 99.46% | Supply Ability: 10g |
| Release date: 2026/05/11 |
Product Introduction
Bioactivity
| Name | Ko 143 |
| Description | Ko 143 is a selective inhibitor of ATP-binding cassette sub-family G member 2 (ABCG2; BCRP). |
| Cell Research | Cells are plated at 400 or 1000/well in 96-well plates the night before the addition of drugs. A concentration series of the drug is applied along one plate axis and left for the duration of the assay. Plates are harvested after 4-5 days while untreated wells are still subconfluent. Relative cell proliferation is quantified with CyQuant or Sybr Green I fluorescent nucleic acid stains. Assays with human cell lines are performed in the presence of 0.1 μm PSC833 to inhibit confounding P-gp activity [2]. |
| Animal Research | Oral toxicity of FTC analogs in mice is tested by mixing 50 mg/mL stocks in DMSO 1:1 with Tween 80 (polyoxyethylene sorbitan mono-oleate) and diluting with 5% w/v glucose such that the final volume administered by oral gavage is 10 μL/g of body weight. Pairs of mice are administered oral doses of 50 mg/kg Ko132, Ko134, Ko143, or vehicle under light methoxyflurane anesthesia. Final tests of 50 mg/kg Ko134 or Ko143 are performed on additional pairs of unanesthetized animals to observe any behavioral effects. Further, another pair of mice receive a higher dose of 100 mg/kg Ko134. For i.p. toxicity tests, the FTC analog stocks in DMSO are dispersed in at least 10 volumes of sterile corn oil such that the injected volume is 5 μL/g of body weight. After pilot tests at lower doses show no adverse effects, mice (4 per group) are administered vehicle or 10 mg/kg i.p. of Ko132, Ko134, or Ko143. The mice are observed continuously during the first hour after administration and then at increasing intervals for 2 weeks, after which they are sacrificed for histological examination of major organs and structures [2]. |
| In vitro | In HEK G2 cells and mouse G2 cells, Ko143 (10 nM) significantly decreases the IC50 of MTX. Ko143 (1-100 μM) metabolite does not inhibit the function of ABC transporters [1]. Reversal of drug resistance in SKF 104864A-selected mouse MEF3.8/T6400 cells and human IGROV1/T8 cells by Ko143 [2]. Ko143 inhibits BCRP-mediated transport of ZD 4522 in Madin-Darby Canine Kidney (MDCK) 2-BCRP421CC (wild type) cells and MDCK2-BCRP421AA (mutant type) cells [3]. |
| In vivo | Ko143 (10 mg/kg, p.o.) increases the oral availability of SKF 104864A in mice [2]. |
| Storage | Store at low temperature Powder: -20°C for 3 years | In solvent: -80°C for 1 year Shipping with blue ice/Shipping at ambient temperature. |
| Solubility Information | H2O : Insoluble DMSO : 90 mg/mL (191.66 mM), Sonication is recommended. 10% DMSO+40% PEG300+5% Tween 80+45% Saline : 3.3 mg/mL (7.03 mM), Sonication is recommended. |
| Keywords | Ko-143 | Ko143 | Ko 143 | Inhibitor | inhibit | Breast cancer resistance protein | BCRP | ABCG2 |
| Inhibitors Related | Moxidectin | Thiethylperazine dimaleate | Prazosin hydrochloride | Glipizide | Vismodegib | Vigabatrin | Elacridar | Chlorpropamide | Probucol | DIDS sodium salt | Acridone | Isoxazole |
| Related Compound Libraries | Bioactive Compound Library | Membrane Protein-targeted Compound Library | Multi-Target Compound Library | Inhibitor Library | Bioactive Compounds Library Max | Anti-Cancer Compound Library |
Company Profile Introduction
Target Molecule Corp. (TargetMol) is a global high-tech enterprise, headquartered in Boston, MA, specializing in chemical and biological research product and service to meet the research needs of global customers.
TargetMol has evolved into one of the biggest global compound library and small molecule suppliers and a customer based on 40+ countries. TargetMol offers over 80 types of compound libraries and a wide range of high-quality research chemicals including inhibitors, activator, natural compounds, peptides, inhibitory antibodies, and novel life-science kits, for laboratory and scientific use. Besides, virtual screening service is also available for customers who would like to conduct the computer-aided drug discovery.
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