China L-thyroxine(T4) powder

China L-thyroxine(T4) powder CAS NO: 51-48-9 Formula: C15H11I4NO4 Molecular weight: 776.87 Content:98% Packing: 1 kg/aluminum foil bag Package:according to customers' requirement Properties: white crystal. This product soluble in alkali solution, insoluble in water, ethanol and aether.

Mp235-236 (breakdown), than the optical rotations [alpha] 20 D 4.4 ° (3%, 0.13 mol/L sodium hydroxide, 70% alcohol), in 0.4 mol/L NaOH solution in a 325 nm wavelength place has the maximum absorption, 0.4 mol/L HCl in solution in a 295 nm wavelength place has the mostLarge absorption. USES: biochemical research; Thyroid hormone to drugs.

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