embalaje : 200mg
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Synonyms: Sodium levothyroxine pentahydrate
| Description | L-Thyroxine sodium salt pentahydrate (Sodium levothyroxine pentahydrate) is a thyroid hormone with anticholesterol activity that inhibits the release of thyroid hormones from thyroid cancer nodules and is used in immune and endocrine disorders such as hypothyroidism, myxedema, cretinism and obesity. diseases, such as hypothyroidism, myxedema, cretinism and obesity. |
| In vivo | In experimental rats fed a 12-week iodine-free diet, levels of triiodothyronine and L-thyroxine were significantly decreased compared to controls on a standard diet. In the low-dose L-Thyroxine sodium salt pentahydrate-treated group, an increase in L-thyroxine levels was observed, while triiodothyronine levels were virtually indistinguishable from those of the control group. Rats receiving high-dose L-Thyroxine sodium salt pentahydrate treatment had significantly increased circulating concentrations of triiodothyronine and L-thyroxine compared to the untreated hypothyroid group, and L-thyroxine levels were significantly increased compared to the control group. [2] |
| Synonyms | Sodium levothyroxine pentahydrate |
| Molecular Weight | 888.93 |
| Formula | C15H20I4NNaO9 |
| Cas No. | 6106-07-6 |
| Smiles | IC(C=C1OC2=C(C=C(C=C2I)C[C@H](N)C([O-])=O)I)=C(C(I)=C1)O.[Na+].O.O.O.O.O |
| Relative Density. | 2.381 g/cm3 |
| Storage | Keep away from moisture,Keep away from direct sunlight Powder: -20°C for 3 years | In solvent: -80°C for 1 year Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||
| Solubility Information | H2O: < 0.1 mg/mL (insoluble) DMSO: 20 mg/mL (22.5 mM), Sonication is recommended. | |||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 2 mg/mL (2.25 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||
DMSO
Note : The dilution table applies only to solid products. For liquid products, please calculate the stock solution based on the stated concentration and/or density. | ||||||||||||||||||||||||||
For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, and a total of 10 animals are to be administered, using a formulation of 
10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH2O , the resulting working solution concentration would be 2 mg/mL.Dissolve 2 mg of the compound in 100 μL DMSO to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO stock solution to 400 µL PEG300 and mix thoroughly until the solution becomes clear.
2) Add 50 µL Tween 80 and mix well until fully clarified.
3) Add 450 µL Saline,PBS or ddH2O and mix thoroughly until a homogeneous solution is obtained.
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