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L-Thyronine

Also known as: Thyronine, Desiodothyroxine, O-(4-Hydroxyphenyl)tyrosine, O-(4-Hydroxyphenyl)-L-tyrosine, H-4-(4-HYDROXYPHENOXY)-PHE-OH, H-BETA-[4-(4-HYDROXYPHENOXY)-PHENYL]-ALA-OH, H-THY-OH, H-TYR(4-HYDROXYPHENYL)-OH, MFCD00063070, EINECS 216-483-8

L-Thyronine (CAS 1596-67-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H15NO4 and a molecular weight of 273.284 g/mol. Key properties include a melting point of 259-260℃, a boiling point of 477.7±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 242.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1596-67-4
Jingsj CID
J-34819-6
Molecular Formula
C15H15NO4
Molecular Weight
273.284 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point259-260℃
Boiling Point477.7±45.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point242.7±28.7 °C
Exact Mass273.100098
PSA92.78000
LogP2.25
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.634
Storage Conditions-15°C

Activity & Biological Data

TargetHuman Endogenous Metabolite

Customs & Trade Information

HS Code2922509090
Summary2922509090. 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 L-Thyronine?

The CAS number of L-Thyronine is 1596-67-4.

What are the molecular formula and molecular weight of L-Thyronine?

L-Thyronine has molecular formula C15H15NO4 and molecular weight 273.284 g/mol.

What are the upstream and downstream products of L-Thyronine?

For L-Thyronine, Upstream Products: L-Thyroxine, 3,5-Diiodo-L-thyronine, Ethyl N-benzoyl-L-tyrosinate.

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

Last updated:

How to cite: Jingsj. "L-Thyronine (CAS 1596-67-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34819-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.