3-Nitro-L-tyrosine
3-硝基-L-酪氨酸
Also known as: 3-Nitrotyrosine, Nitrotyrosine, L-4-hydroxy-3-nitro-phenylalanine, H-Tyr(3-NO2)-OH, m-Nitro-L-tyrosine, 3-Nitro-Tyrosine, (S)-2-Amino-3-(4-hydroxy-3-nitrophenyl)propanoic acid, (S)-3-(3-Nitro-4-hydroxyphenyl)alanine
3-Nitro-L-tyrosine (CAS 621-44-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10N2O5 and a molecular weight of 226.186 g/mol. It is also known as 3-Nitrotyrosine, Nitrotyrosine and L-4-hydroxy-3-nitro-phenylalanine. Key properties include a melting point of 233-235ºC (dec.), a boiling point of 431.6±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 214.8±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 621-44-3
- Jingsj CID
- J-43502-4
- Molecular Formula
- C9H10N2O5
- Chinese Name
- 3-硝基-L-酪氨酸
- Molecular Weight
- 226.186 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 233-235ºC (dec.) |
|---|---|
| Boiling Point | 431.6±45.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 214.8±28.7 °C |
| Exact Mass | 226.058975 |
| PSA | 129.37000 |
| LogP | 0.60 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.651 |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Montoliu C, et al. 3-nitro-tyrosine as a peripheral biomarker of minimal hepatic encephalopathy in patients with liver cirrhosis. Am J Gastroenterol. 2011 Sep;106(9):1629-37. |
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-Nitro-L-tyrosine?
The CAS number of 3-Nitro-L-tyrosine is 621-44-3.
What are the molecular formula and molecular weight of 3-Nitro-L-tyrosine?
3-Nitro-L-tyrosine has molecular formula C9H10N2O5 and molecular weight 226.186 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Nitro-L-tyrosine (CAS 621-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43502-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.