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O-Phospho-L-tyrosine

L-磷酸酪氨酸

Also known as: L-Phosphotyrosine, Phospho-L-tyrosine, O-Phosphotyrosine, Phosphonotyrosine, Tyrosine O-phosphate, L-Tyrosine O-phosphate, L-Tyrosine-O-phosphate, O4-phospho-L-tyrosine, PHOSPHOTYROSINE, H-Tyr(PO3H2)-OH, H-TYR(P)-OH, H-TYR(PO3H2)-OH, H-Tyr(PO3)-OH, L-3-[4-HYDROXYPHENYL]ALANINE 4'-PHOSPHATE, L-TYROSINE O-PHOSPHATE, L-Tyr-phosphate, L-tyrosine phosphate, MFCD00002603, (2S)-2-amino-3-(4-phosphonooxyphenyl)propanoic acid

O-Phospho-L-tyrosine (CAS 21820-51-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H12NO6P and a molecular weight of 261.16800 g/mol. It is also known as L-Phosphotyrosine, Phospho-L-tyrosine and O-Phosphotyrosine. Key properties include a melting point of 226-227ºC, a boiling point of 590.1ºC at 760 mmHg, a density of 1.63g/cm3 and a flash point of 310.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21820-51-9
Jingsj CID
J-1958303-9
Molecular Formula
C9H12NO6P
Chinese Name
L-磷酸酪氨酸
Molecular Weight
261.16800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point226-227ºC
Boiling Point590.1ºC at 760 mmHg
Density1.63g/cm3
Flash Point310.7ºC

Frequently Asked Questions

What is the CAS number of O-Phospho-L-tyrosine?

The CAS number of O-Phospho-L-tyrosine is 21820-51-9.

What are the molecular formula and molecular weight of O-Phospho-L-tyrosine?

O-Phospho-L-tyrosine has molecular formula C9H12NO6P and molecular weight 261.16800 g/mol.

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

Last updated:

How to cite: Jingsj. "O-Phospho-L-tyrosine (CAS 21820-51-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958303-9 (accessed 2026-10-23).

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