L-Thyroxine

Synonyms: levothyroxine; l-t4; t4(hormone); o-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-l-tyrosin; o-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodotyrosine; tetraiodothyronine 

CAS: 51-48-9 

EINECS: 200-101-1 

Assay: 99% min. USP30   

Loss on dry:≤1%

Melting point:233℃-235℃ 

Heavy metal:≤10ppm

MF: C15H11I4NO4 

MW: 776.87 

MS:

Character: White Crystalline Solid. 

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 p. 

Packing: 1 kg /foil bag or tin.