C15H12I4NNaO5
816.87 g/mol
APIDanger
Levothyroxine sodium monohydrate
CAS25416-65-3
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
Levothyroxine sodium monohydrate is a pharmaceutical raw material used as an active pharmaceutical ingredient. It is a synthetic form of the thyroid hormone thyroxine, supplied for use in pharmaceutical manufacturing.
pharmaceutical manufacturingactive pharmaceutical ingredient
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Levothyroxine sodium
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pharmaceutical raw material
StrongSame Parent
Levothyroxine sodium pentahydrate
CAS6106-07-6
pharmaceutical raw material
SimilarStructure SimilarSimilarity 0.75
Liothyronine sodium
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pharmaceutical raw material
ReferenceSame Category
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pharmaceutical raw material
ReferenceSame Category
1,3-Propanediol, 2-allyl-2-methyl-, dicarbamate
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pharmaceutical raw material
ReferenceSame Category
Sparsentan
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pharmaceutical raw material
ReferenceSame Category
Isoquinolin-3-amine
CAS25475-67-6
pharmaceutical raw material
Referencestereoisomer of
L-thyroxine zwitterion
CAS51-48-9
pharmaceutical raw material
Safety Reference
Danger
H361Suspected of damaging fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for Levothyroxine sodium monohydrate (CAS 25416-65-3) is 2937.90.
HS code (international, 6-digit)
2937.90
EU CN code (8-digit)
2937 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
sodium;(2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate;hydrate
InChIKey
ANMYAHDLKVNJJO-LTCKWSDVSA-M
SMILES
C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)[O-])N.O.[Na+]
Synonyms (29)
- Levothyroxine Sodium; Liothyronine Sodium EP Impurity A
- L-Thyroxin monosodium salt
- L-Thyroxine sodium hydrate
- L-Thyroxine sodium xhydrate
- Latequatro
- Letequatro
- Levo-Tiroxina Glaxo
- Levoroxin
- Levothyroxine sodium CRS
- Levothyroxine sodium hydrate
- Levotiron
- T4 (LIOTRIX)
- Tiroxina
- Tivoral
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