Fmoc-L-4-cyanophenylalanine

Also known as: Fmoc-Phe(4-CN)-OH, (2S)-3-(4-Cyanophenyl)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}propanoic acid, (2S)-3-(4-cyanophenyl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid, (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-cyanophenyl)propanoic acid, (S)-2-(FLUORENYLMETHOXYCARBONYLAMINO)-3-(4-CYANOPHENYL)PROPANOIC ACID, (S)-N-FMOC-4-CYANOPHENYLALANINE, 3-(4-CYANO-PHENYL)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-PROPIONIC ACID, 4-Cyano-N-Fmoc-L-phenylalanine, 4-Cyano-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-phenylalanine, FMOC-L-4-CYANOPHENYLALANINE, L-Phenylalanine, 4-cyano-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, MFCD00672559, N-(9-FLUORENYLMETHOXYCARBONYL)-4-CYANOPHENYL-L-ALANINE, N-ALPHA-(9-FLUORENYLMETHOXYCARBONYL)-(4-CYANO)-L-PHENYLALANINE, N-ALPHA-FMOC-4-CYANO-L-PHENYLALANINE, N-FMOC-P-CYANO-L-PHENYLALANINE, RARECHEM BK PT 0159, fmoc-l-4-cyanophenylalanine

Fmoc-L-4-cyanophenylalanine (CAS 173963-93-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C25H20N2O4 and a molecular weight of 412.43700 g/mol. Key properties include a melting point of 189ºC, a boiling point of 678.7ºC at 760 mmHg and a flash point of 364.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 173963-93-4
Jingsj CID: J-1979551-8
Molecular Formula: C₂₅H₂₀N₂O₄
Molecular Weight: 412.43700 g/mol
Category: Organic Acids
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	189ºC
Boiling Point	678.7ºC at 760 mmHg
Flash Point	364.3ºC
Exact Mass	412.14200
PSA	99.42000
LogP	4.48358
Vapor Pressure	2.38E-19mmHg at 25°C
Refractive Index	1.672
Storage Conditions	2-8°C

Activity & Biological Data

Additional Information	[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-807.

Frequently Asked Questions

What is the CAS number of Fmoc-L-4-cyanophenylalanine?

The CAS number of Fmoc-L-4-cyanophenylalanine is 173963-93-4.

What are the molecular formula and molecular weight of Fmoc-L-4-cyanophenylalanine?

Fmoc-L-4-cyanophenylalanine has molecular formula C25H20N2O4 and molecular weight 412.43700 g/mol.

What are the upstream and downstream products of Fmoc-L-4-cyanophenylalanine?

For Fmoc-L-4-cyanophenylalanine, Upstream Products: Fmoc-OSu, L-4-Cyanophenylalanine, 4-Cyanobenzyl bromide.

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. "Fmoc-L-4-cyanophenylalanine (CAS 173963-93-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1979551-8 (accessed 2026-11-09).

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