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Chemical structure of Levothyroxine sodium

GC19702

Levothyroxine sodium

Also known as sodium (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate

Levothyroxine sodium (catalogue number GC19702) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 55-03-8. Molecular formula C15H10I4NNaO4, molecular weight 798.85. IUPAC name: sodium (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate. Supplied in 2 pack sizes, from 25mg at ₪126.45 to 100mg at ₪167.24; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS55-03-8MW798.85FormulaC15H10I4NNaO4
CAS number
55-03-8
Molecular weight
798.85
Formula
C15H10I4NNaO4
Solubility
>100mg/mL in DMSO;>3mg/mL in Ethanol;Insoluble in Water
InChIKey
YDTFRJLNMPSCFM-YDALLXLXSA-M
Catalogue number
GC19702
Brand
GLPBIO
Computed properties PubChem CID 23666112 · TPSA 95.6 Ų · H-bond donors 2 · H-bond acceptors 5
TPSA
95.6 Ų
H-bond donors
2
H-bond acceptors
5
Rotatable bonds
5
Heavy atoms
25

SMILES C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)[O-])N.[Na+]

Computed descriptors from PubChem (CID 23666112), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

Lead time
Ships from the manufacturer to your lab in 8–14 business days; customs and cold chain handled by LABO Scientific.
Pricing
Quoted in ILS, excl. VAT. Add the item to your quote and we confirm the final price, usually the same business day.
Documents
Lot certificate of analysis and manufacturer SDS are emailed with your order confirmation.
Who we serve
Universities, hospitals and biotech companies across Israel. Research use only — not for diagnostic or therapeutic use.