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
Sourcing Levothyroxine sodium monohydrate?
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Levothyroxine sodium pentahydrate
pharmaceutical raw material
Sourcing Levothyroxine sodium monohydrate?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
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.
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.
The international HS code for Levothyroxine sodium monohydrate (CAS 25416-65-3) is 2937.90.
2937.90
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.
sodium;(2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate;hydrate
ANMYAHDLKVNJJO-LTCKWSDVSA-M
C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)[O-])N.O.[Na+]