Physicochemical Properties
| Molecular Formula | C11H11N3O |
| Molecular Weight | 201.2245 |
| Exact Mass | 201.09 |
| CAS # | 87164-90-7 |
| PubChem CID | 6439810 |
| Appearance | Typically exists as solid at room temperature |
| Density | 1.22g/cm3 |
| Index of Refraction | 1.627 |
| LogP | 1.072 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 2 |
| Heavy Atom Count | 15 |
| Complexity | 290 |
| Defined Atom Stereocenter Count | 0 |
| SMILES | O=C1CCC(/C=C/C2=CC=NC=C2)=NN1 |
| InChi Key | NTIZSASEORJCSP-OWOJBTEDSA-N |
| InChi Code | InChI=1S/C11H11N3O/c15-11-4-3-10(13-14-11)2-1-9-5-7-12-8-6-9/h1-2,5-8H,3-4H2,(H,14,15)/b2-1+ |
| Chemical Name | 3-[(E)-2-pyridin-4-ylethenyl]-4,5-dihydro-1H-pyridazin-6-one |
| 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 Vivo | The oral phosphodiesterase inhibitor ICI 153110 is designed to treat congestive heart failure by virtue of its vasodilatory and inotropic characteristics. Fourteen animals perished as a direct or indirect consequence of ICI 153110 injection in the reversible group and the high-dose primary test group. Female rats given ICI 153110 at a dose of 10 mg/kg/day developed mild localized arteritis, which was characterized by early fibrous tissue development and a predominately diffuse adventitial infiltration of mixed cells. Endotracheal intubation of the given solution caused the untimely death of two rats dosed with 250 mg/kg/day ICI 153110. Medial necrosis, medial and adventitial inflammation, and mild localized arteritis were observed in the arteries of two more rats (doses 5 and 250 mg/kg/day, ICI 153110) [1]. |
| References |
[1]. Pathologic changes in blood vessels following administration of an inotropic vasodilator (ICI 153,110) to the rat. Fundam Appl Toxicol. 1990 May;14(4):797-809. |
Solubility Data
| Solubility (In Vitro) | May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples |
| 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 | 4.9697 mL | 24.8484 mL | 49.6968 mL | |
| 5 mM | 0.9939 mL | 4.9697 mL | 9.9394 mL | |
| 10 mM | 0.4970 mL | 2.4848 mL | 4.9697 mL |