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3,5-Diiodo-L-thyronine

Also known as: 3,5-Diiodo-4-(4-hydroxyphenoxy)-L-phenylalanine, 3,5-T2, O-(4-Hydroxyphenyl)-3,5-diiodo-L-tyrosine, O-(4-Hydroxyphenyl)-3,5-diiodotyrosine, L-O-(4-hydroxyphenyl)-3,5-diiodo-tyrosine, L-Tyrosine, O-(4-hydroxyphenyl)-3,5-diiodo-, Alanine, 3-[4-(p-hydroxyphenoxy)-3,5-diiodophenyl]-, L-, L-(+)-3,5-Diiodothyronine, MFCD00064987, EINECS 213-867-7, (2S)-2-amino-3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propanoic acid

3,5-Diiodo-L-thyronine (CAS 1041-01-6) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C15H13I2NO4 and a molecular weight of 525.077 g/mol. Key properties include a melting point of 255-260 °C (dec.), a boiling point of 559.4±50.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 292.1±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1041-01-6
Jingsj CID
J-1517738-5
Molecular Formula
C15H13I2NO4
Molecular Weight
525.077 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point255-260 °C (dec.)
Boiling Point559.4±50.0 °C at 760 mmHg
Density2.1±0.1 g/cm3
Flash Point292.1±30.1 °C
Exact Mass524.893372
PSA92.78000
LogP3.78
Vapor Pressure0.0±1.6 mmHg at 25°C
Refractive Index1.726

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

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 3,5-Diiodo-L-thyronine?

The CAS number of 3,5-Diiodo-L-thyronine is 1041-01-6.

What are the molecular formula and molecular weight of 3,5-Diiodo-L-thyronine?

3,5-Diiodo-L-thyronine has molecular formula C15H13I2NO4 and molecular weight 525.077 g/mol.

Is 3,5-Diiodo-L-thyronine hazardous?

3,5-Diiodo-L-thyronine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 3,5-Diiodo-L-thyronine?

For 3,5-Diiodo-L-thyronine, Upstream Products: 3,5-Diiodo-L-tyrosine, 4-Hydroxybenzyl alcohol, L-Tyrosine; Downstream Products: L-Thyroxine, O-(4-Hydroxyphenyl)-3,5-diiodo-L-tyrosine methyl ester, L-Thyronine.

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

Last updated:

How to cite: Jingsj. "3,5-Diiodo-L-thyronine (CAS 1041-01-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517738-5 (accessed 2026-11-09).

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