Thyroxine

Molecular Structure:

IUPAC Name: 2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid
Molecular Weight: 776.87002 g/mol
Molecular Formula: C₁₅H₁₁I₄NO₄ 
Index of Refraction: 1.795
Molar Refractivity: 125.44 cm³
Molar Volume: 294.7 cm³
Polarizability: 49.73×10^-24cm³
Surface Tension: 79.6 dyne/cm
Density: 2.635 g/cm³
Flash Point: 302.3 °C
Enthalpy of Vaporization: 90.78 kJ/mol
Boiling Point: 576.3 °C at 760 mmHg 
XLogP3-AA: 2.4
H-Bond Donor: 3
H-Bond Acceptor: 5
Rotatable Bond Count: 5
Tautomer Count: 2
Exact Mass: 776.68668
MonoIsotopic Mass: 776.68668
Topological Polar Surface Area: 92.8
Heavy Atom Count: 24
Complexity: 420
InChI: InChI=1S/C15H11I4NO4/c16-8-4-7(5-9(17)13(8)21)24-14-10(18)1-6(2-11(14)19)3-12(20)15(22)23/h1-2,4-5,12,21H,3,20H2,(H,22,23)
InChIKey: XUIIKFGFIJCVMT-UHFFFAOYSA-N

The Thyronines (CAS NO.7488-70-2) act on nearly every cell in the body. They act to increase the basal metabolic rate, affect protein synthesis, help regulate long bone growth (synergy with growth hormone), neuronal maturation and increase the body's sensitivity to catecholamines (such as adrenaline) by permissiveness.

 Thyroxine (CAS NO.7488-70-2) is synthesized via the iodination of tyrosines(monoiodotyrosine) and the coupling of iodotyrosines (diiodotyrosine) in the thyroglobulin.

Human toxic effects at low oral doses. Human systemic effects by ingestion: EKG changes. An experimental teratogen. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of I⁻ and NO_x.

 Thyroxine (CAS NO.7488-70-2) is also known as 2-amino-3-[4-(4-hydroxy-3,5-diiodo-phenoxy)-3,5-diiodo-phenyl]-propanoic acid , 2-Amino-3-[4-(4-hydroxy-3,5-diiodphenoxy)-3,5-diiodphenyl]propansäure , 2-ammonio-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate , 3-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)alanine , 3,5,3',5'-Tetraiodothyronine .