Liothyronine sodium

碘塞罗宁钠

Also known as: 3,3',5-Triiodo-L-thyronine sodium salt, 3,3',5-Triiodothyronine sodium salt, T3 sodium salt, Sodium T3, Sodium L-triiodothyronine, Liothyronine sodium salt, Cytomel, Triostat, Tertroxin, Sodium (2S)-2-amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]propanoate, Sodium 3,3',5-triiodo-L-thyronine, UNII:GCA9VV7D2N, MFCD00002594

Liothyronine sodium (CAS 55-06-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C15H11I3NNaO4 and a molecular weight of 672.955 g/mol. It is also known as 3,3',5-Triiodo-L-thyronine sodium salt, 3,3',5-Triiodothyronine sodium salt and T3 sodium salt. Key properties include a melting point of 205 °C (dec.)(lit.), a boiling point of 563.5ºC at 760 mmHg and a flash point of 294.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55-06-1
Jingsj CID: J-24506-7
Molecular Formula: C₁₅H₁₁I₃NNaO₄
Chinese Name: 碘塞罗宁钠
Molecular Weight: 672.955 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	205 °C (dec.)(lit.)
Boiling Point	563.5ºC at 760 mmHg
Flash Point	294.6ºC
Exact Mass	672.771973
PSA	95.61000
LogP	3.31830

Activity & Biological Data

Target	TRβ1[1][2]
Additional Information	[1]. Lin KH, et al. Stimulation of proliferation by 3,3',5-triiodo-L-thyronine in poorly differentiated human hepatocarcinoma cells overexpressing beta 1 thyroid hormone receptor. Cancer Lett. 1994 Oct 14;85(2):189-94. [2]. Bhat MK, et al. Conformational changes of human beta 1 thyroid hormone receptor induced by binding of 3,3',5-triiodo-L-thyronine. Biochem Biophys Res Commun. 1993 Aug 31;195(1):385-92.

Target

TRβ1[1][2]

Additional Information

[1]. Lin KH, et al. Stimulation of proliferation by 3,3',5-triiodo-L-thyronine in poorly differentiated human hepatocarcinoma cells overexpressing beta 1 thyroid hormone receptor. Cancer Lett. 1994 Oct 14;85(2):189-94. [2]. Bhat MK, et al. Conformational changes of human beta 1 thyroid hormone receptor induced by binding of 3,3',5-triiodo-L-thyronine. Biochem Biophys Res Commun. 1993 Aug 31;195(1):385-92.

Customs & Trade Information

HS Code	2922509090
Summary	2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Liothyronine sodium?

The CAS number of Liothyronine sodium is 55-06-1.

What are the molecular formula and molecular weight of Liothyronine sodium?

Liothyronine sodium has molecular formula C15H11I3NNaO4 and molecular weight 672.955 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Liothyronine sodium (CAS 55-06-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24506-7 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.