L-Thyroxine sodium salt pentahydrate；L-Thyroxine sodiumsalt

CAS No.: 6106-07-6

C15H10I4NNaO4 • 5H2O= 888.93

Grade: BR

Content: 97.0 ~ 102.0%

Loss on drying: ≤ 11.0%

Melting point: 207 ~ 210 ℃

Physicochemical properties: white or light milky yellow triclinic crystal or powder. Odorless and tasteless. Slightly hygroscopic. Stable in dry air and room temperature. Sensitive to light. At 25 ℃, the solubility in water is about 15mg/100ml, soluble in mineral acid, alkali hydroxide and alkali carbonate solutions, slightly soluble in ethanol, and very slightly soluble in chloroform and ether. The pH of saturated solution is 8.35 ~ 9.35. Relative density (d204) 2.381

Purpose: biochemical research.

Storage: 2 ~ 8 ℃, away from light