(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid

Also known as: Fmoc-(S)-3-Amino-3-phenylpropionic acid, (S)-N-Fmoc-3-Amino-3-phenylpropanoic acid, Fmoc-beta-L-Phe-OH, Fmoc-L-beta-phenylalanine, (S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-3-phenylpropionic acid, Fmoc-(S)-beta3-phenylalanine

(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid (CAS 209252-15-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C24H21NO4 and a molecular weight of 387.428 g/mol. Key properties include a melting point of 187.3 °C, a boiling point of 591.4±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 311.5±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 209252-15-3
Jingsj CID: J-10118-8
Molecular Formula: C₂₄H₂₁NO₄
Molecular Weight: 387.428 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	187.3 °C
Boiling Point	591.4±50.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	311.5±30.1 °C
Exact Mass	387.147064
PSA	75.63000
LogP	5.28
Vapor Pressure	0.0±1.7 mmHg at 25°C
Refractive Index	1.642

Frequently Asked Questions

What is the CAS number of (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid?

The CAS number of (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid is 209252-15-3.

What are the molecular formula and molecular weight of (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid?

(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid has molecular formula C24H21NO4 and molecular weight 387.428 g/mol.

What are the upstream and downstream products of (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid?

For (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid, Upstream Products: Fmoc-D-phenylglycine, DL-β-Phenylalanine, Fmoc-OSu.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-phenylpropanoic acid (CAS 209252-15-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10118-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.