CAS No. 55-03-8

Appearance	Light yellow to buff-colored
Identification	Conform
Specific rotation	Between -5° and -6°
Water(loss on Drying)	<11.0％
Iodides content	<0.08％
PH	8.5~9.5
Assay（ HPLC Analytical On the anhydrous basis）
Levothyroxine Sodium	>97.0％ and <103%
N-Acetyl-T4	<0.2％
Liothyronine	<1.0％

Molecular Formula: C15H10I4NNaO4
Molecular Weight: 798.86


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IP

Molecular Weight: 798.856
Molecular Formula: C15H10I4NNaO4
Canonical SMILES: O(C1=CC(I)=C(O)C(I)=C1)C2=C(I)C=C(C[C@@H](C(O)=O)N)C=C2I.[Na]
InChI: InChI=1S/C15H11I4NO4.Na/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);/t12-;/m0./s1
InChIKey: BRLSOHUOWVCKNI-YDALLXLXSA-N
Synonyms: L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, sodium salt (1:1); Thyroxine, monosodium salt, L-; L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, monosodium salt; Dathroid; Eltroxin; Laevoxin; Levoroxine; Sodium levothyroxine; Sodium thyroxin; Sodium L-thyroxine; Sodium thyroxine; Thyroxine sodium; L-Thyroxine sodium; L-Thyroxine monosodium salt; L-Thyroxine sodium salt; Monosodium thyroxine; Sodium thyroxinate; Thyroxine sodium salt
Description
Levothyroxine sodium is the hormone derived from thyroid gland.


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