(S)-Boc-3-methyl-β-phenylalanine

S-Boc-3-甲基-β-苯丙氨酸

Also known as: (3S)-3-(3-methylphenyl)-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid, (3S)-3-{[(tert-butoxy)carbonyl]amino}-3-(3-methylphenyl)propanoic acid, (S)-3-(Boc-amino)-3-(3-methylphenyl)propionic acid, Boc-(S)-3-amino-3-(3-methylphenyl)propionic acid, Boc-β-Phe(3-Me)-OH, MFCD03427896

(S)-Boc-3-methyl-β-phenylalanine (CAS 499995-75-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H21NO4 and a molecular weight of 279.332 g/mol. It is also known as (3S)-3-(3-methylphenyl)-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid, (3S)-3-{[(tert-butoxy)carbonyl]amino}-3-(3-methylphenyl)propanoic acid and (S)-3-(Boc-amino)-3-(3-methylphenyl)propionic acid. Key properties include a melting point of 116 - 119 °C, a boiling point of 436.3±40.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 217.7±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
499995-75-4
Jingsj CID
J-25763-3
Molecular Formula
C15H21NO4
Chinese Name
S-Boc-3-甲基-β-苯丙氨酸
Molecular Weight
279.332 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point116 - 119 °C
Boiling Point436.3±40.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point217.7±27.3 °C

Frequently Asked Questions

What is the CAS number of (S)-Boc-3-methyl-β-phenylalanine?

The CAS number of (S)-Boc-3-methyl-β-phenylalanine is 499995-75-4.

What are the molecular formula and molecular weight of (S)-Boc-3-methyl-β-phenylalanine?

(S)-Boc-3-methyl-β-phenylalanine has molecular formula C15H21NO4 and molecular weight 279.332 g/mol.

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

Last updated:

How to cite: Jingsj. "(S)-Boc-3-methyl-β-phenylalanine (CAS 499995-75-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25763-3 (accessed 2026-10-24).

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