Boc-L-3,4-difluorophenylalanine

Also known as: N-(tert-Butoxycarbonyl)-3,4-difluoro-L-phenylalanine, Boc-3,4-difluoro-L-phenylalanine, Boc-Phe(3,4-F2)-OH, BOC-L-3,4-Difluorophenylalanine, BOC-PHE(3,4-DIF)-OH, BOC-PHE(3,4-F2)-OH, Boc-L-3,4-difluorophenylalanine, Boc-L-Phe(3,4-F2)-OH, BOC-3,4-DIFLUORO-L-PHENYLALANINE, 3,4-Difluoro-N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-phenylalanine, MFCD00672518

Boc-L-3,4-difluorophenylalanine (CAS 198474-90-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H17F2NO4 and a molecular weight of 301.286 g/mol. Key properties include a melting point of 95-105ºC, a boiling point of 430.4±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 214.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 198474-90-7
Jingsj CID: J-17181-3
Molecular Formula: C₁₄H₁₇F₂NO₄
Molecular Weight: 301.286 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	95-105ºC
Boiling Point	430.4±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	214.1±28.7 °C
Exact Mass	301.112549
PSA	75.63000
LogP	2.98
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.506

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):1793-846.

Customs & Trade Information

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Boc-L-3,4-difluorophenylalanine?

The CAS number of Boc-L-3,4-difluorophenylalanine is 198474-90-7.

What are the molecular formula and molecular weight of Boc-L-3,4-difluorophenylalanine?

Boc-L-3,4-difluorophenylalanine has molecular formula C14H17F2NO4 and molecular weight 301.286 g/mol.

What are the upstream and downstream products of Boc-L-3,4-difluorophenylalanine?

For Boc-L-3,4-difluorophenylalanine, Upstream Products: 3,4-Difluorobenzyl bromide, Di-tert-butyl dicarbonate, 3,4-Difluoro-L-phenylalanine.

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. "Boc-L-3,4-difluorophenylalanine (CAS 198474-90-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17181-3 (accessed 2026-11-09).

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