Physicochemical Properties
| Molecular Formula | C19H18N4O4S2 |
| Molecular Weight | 430.500621318817 |
| Exact Mass | 430.076 |
| CAS # | 1818427-07-4 |
| PubChem CID | 126511854 |
| Appearance | Off-white to light yellow solid powder |
| LogP | 2.1 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 7 |
| Heavy Atom Count | 29 |
| Complexity | 613 |
| Defined Atom Stereocenter Count | 0 |
| SMILES | S1C(=C2C3=C(C=NS3)CCC2=C1C(N)=O)OC1C=NC(C(NCCOC)=O)=CC=1 |
| InChi Key | NENJFZKQHYXRDQ-UHFFFAOYSA-N |
| InChi Code | InChI=1S/C19H18N4O4S2/c1-26-7-6-21-18(25)13-5-3-11(9-22-13)27-19-14-12(16(28-19)17(20)24)4-2-10-8-23-29-15(10)14/h3,5,8-9H,2,4,6-7H2,1H3,(H2,20,24)(H,21,25) |
| Chemical Name | 8-[6-(2-methoxyethylcarbamoyl)pyridin-3-yl]oxy-4,5-dihydrothieno[3,4-g][1,2]benzothiazole-6-carboxamide |
| 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) |
Biological Activity
| ln Vitro | CDK8/19-IN-1 (52h) is a highly effective dual CDK8/19 inhibitor with IC50 values of 0.46 nM, 0.99 nM, and 270 nM for CDK8, CDK19, and CDK9, respectively. CDK8/19-IN-1 modestly inhibits CDK2, with 62% inhibition at 1 μM. CDK8/19-IN-1 (1 μM) inhibits more than 50% of GSK3β, PLK1, ASK1, CK1δ, PKA, ROCK1, PKCθ, and CDC7. The Kd of CDK8/19-IN-1 for CDK19, CDK8, DYRK1B, HASPIN, YSK4, HIPK1, and EPHA3 is 25, 46, 81, 86, 97, 160, and >3000 nM, respectively. CDK8/19-IN-1 has significant anti-tumor action against colon, multiple myeloma, acute myeloid leukemia (AML), and lung cancer cells, with GI50 values ranging from 0.43 to 2.5 nM [1]. |
| ln Vivo | In mice harboring RPMI8226 human hematopoietic and lymphocyte cells, CDK8/19-IN-1 (52 hours; 1.25 mg/kg twice day or 2.5 mg/kg once daily orally) effectively reduces tumor formation [1]. |
| References |
[1]. Design and synthesis of selective CDK8/19 dual inhibitors: Discovery of 4,5-dihydrothieno[3',4':3,4]benzo[1,2-d]isothiazole derivatives. Bioorg Med Chem. 2017 Apr 15;25(8):2336-2350. |
Solubility Data
| Solubility (In Vitro) | DMSO : ~50 mg/mL (~116.14 mM) |
| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *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. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.3229 mL | 11.6144 mL | 23.2288 mL | |
| 5 mM | 0.4646 mL | 2.3229 mL | 4.6458 mL | |
| 10 mM | 0.2323 mL | 1.1614 mL | 2.3229 mL |