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(S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid

(S)-2-氨基-3-(3,4-二甲氧基苯基)丙酸

Also known as: L-3,4-Dimethoxyphenylalanine, 3,4-Dimethoxy-L-phenylalanine, H-Phe(3,4-diMeO)-OH, (S)-3,4-Dimethoxyphenylalanine, O-Dimethyl dopa

(S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid (CAS 55-59-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H15NO4 and a molecular weight of 225.241 g/mol. It is also known as L-3,4-Dimethoxyphenylalanine, 3,4-Dimethoxy-L-phenylalanine and H-Phe(3,4-diMeO)-OH. Key properties include a melting point of 254-257ºC(lit.), a boiling point of 374.3±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 180.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55-59-4
Jingsj CID
J-1561551-4
Molecular Formula
C11H15NO4
Chinese Name
(S)-2-氨基-3-(3,4-二甲氧基苯基)丙酸
Molecular Weight
225.241 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point254-257ºC(lit.)
Boiling Point374.3±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point180.2±27.9 °C

Frequently Asked Questions

What is the CAS number of (S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid?

The CAS number of (S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid is 55-59-4.

What are the molecular formula and molecular weight of (S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid?

(S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid has molecular formula C11H15NO4 and molecular weight 225.241 g/mol.

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

Last updated:

How to cite: Jingsj. "(S)-2-Amino-3-(3,4-dimethoxyphenyl)propanoic acid (CAS 55-59-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1561551-4 (accessed 2026-10-25).

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