3,3',5'-Triiodo-L-thyronine
Also known as: Reverse triiodothyronine, rT3, L-3,3',5'-Triiodothyronine, O-(4-Hydroxy-3,5-diiodophenyl)-3-iodo-L-tyrosine, 3,3',5'-Triiodo-L-thyronine (Reverse T3)
3,3',5'-Triiodo-L-thyronine (CAS 5817-39-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H12I3NO4 and a molecular weight of 650.974 g/mol. Key properties include a melting point of 234-238ºC(lit.), a boiling point of 534.6±50.0 °C at 760 mmHg, a density of 2.4±0.1 g/cm3 and a flash point of 277.1±30.1 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. It is listed by 1 supplier, from 136.00 to 136.00 CNY per 10mg. Record last updated Aug 21, 2026.
- CAS No.
- 5817-39-0
- Jingsj CID
- J-1957864-0
- Molecular Formula
- C15H12I3NO4
- Molecular Weight
- 650.974 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 97% 10mg | ¥1,360.00 | $20.35 /mgBest ¥136.00/mg CNY | CN China MOQ 10mg |
Physicochemical Properties
| Melting Point | 234-238ºC(lit.) |
|---|---|
| Boiling Point | 534.6±50.0 °C at 760 mmHg |
| Density | 2.4±0.1 g/cm3 |
| Flash Point | 277.1±30.1 °C |
| Exact Mass | 650.790039 |
| PSA | 92.78000 |
| LogP | 5.39 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.763 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Activity & Biological Data
| Additional Information | [1]. Nicod P, et al. Radioimmunoassay for 3,3',5'-triiodo-L-thyronine in unextracted serum: method and clinical results. J Clin Endocrinol Metab. 1976 May;42(5):823-9. [2]. Rebolledo RA, et al. Anti-Apoptotic Effects of 3,3',5-Triiodo-L-Thyronine in the Liver of Brain-Dead Rats. PLoS One. 2015 Oct 5;10(10):e0138749. |
|---|
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 3,3',5'-Triiodo-L-thyronine?
The CAS number of 3,3',5'-Triiodo-L-thyronine is 5817-39-0.
What are the molecular formula and molecular weight of 3,3',5'-Triiodo-L-thyronine?
3,3',5'-Triiodo-L-thyronine has molecular formula C15H12I3NO4 and molecular weight 650.974 g/mol.
Which suppliers offer 3,3',5'-Triiodo-L-thyronine?
1 supplier(s) listed; reference unit price ¥136.00–136.00 /mg.
Is 3,3',5'-Triiodo-L-thyronine hazardous?
3,3',5'-Triiodo-L-thyronine has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,3',5'-Triiodo-L-thyronine (CAS 5817-39-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1957864-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.