EINECS: 200-221-4
Molecular Formula: C₁₅H₁₀I₄NNaO₄
Synonyms: L-Tyrosine,O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, monosodium salt (9CI); Thyroxine,monosodium salt, L- (8CI); Berlthyrox; Dathroid; Droxine; Eferox; Elthyrone; Elthyroxine; Eltroxin; Euthyrox; Eutirox; L-Thyroxin Henning; L-Thyroxinemonosodium salt; L-Thyroxine sodium; L-Thyroxine sodium salt; Laevoxin; Letrox; Letter; Levaxin; Leventa; Levo-T; Levoroxine; Levothroid; Levothyrox; Levothyroxine sodium; Levotirox; Levotiroxina; Levoxyl; Monosodium thyroxine; NSC 259940; Oroxine; Puran T 4; Sodium L-thyroxine; Sodium levothyroxine; Sodium thyroxin; Sodium thyroxinate; Sodium thyroxine; Synthroid; Synthroidsodium; Synthrox; T 4KP; T4 Montpellier 100; Thevier; Throxinique; Thyradin; Thyradin S; Thyrax Duotab; Thyrex; Thyro 4; Thyrosit; Thyroxevan; Thyroxinesodium; Thyroxine sodium salt; Tiroidine;
Molecular Weight: 776.87002
Boiling Point:576.3 °C at 760 mmHg
Melting Point: 207-210 (dec.)(lit.)
Flash Point: 302.3 °C
Storage Temperature: 2-8°C
Solubility: cell culture medium: 0.1 mg/mL in water
Usage: One of the thyroid hormones involved in the maintenance of metabolic homeostasis. Synthesized and stored as amino acid residues of thyroglobulin, the major protein component of the thyroid follicular colloid. Synthesis and secretion are regulated by the pituitary hormone (TSH). Deiodinated in peripheral tissues to the active metabolite, liothyronine. The D-form has very little activity as a thyroid hormone, but has been used to treat hyperlipidemia.