3,4-Difluoro-L-phenylalanine

Name: 3,4-Difluoro-L-phenylalanine
Brand: ChemScene
Availability: InStock
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CAS No. 31105-90-5
Cat. No. CS-0011206
Purity≥95%
MDL No.MFCD01075125

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

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Structure of 31105-90-5

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Description

3,4-Difluoro-L-phenylalanine is a fluorinated analog of the essential amino acid L-phenylalanine, featuring two fluorine atoms at the meta and para positions of the aromatic ring. This substitution enhances metabolic stability and modulates electronic properties, making it valuable for probing protein folding, enzyme mechanisms, and peptide therapeutics in chemical biology and medicinal chemistry applications.

Application

3,4-Difluoro-L-phenylalanine serves as a fluorinated amino acid building block for peptide synthesis and medicinal chemistry campaigns. Its ortho-fluoro substitution enhances metabolic stability and modulates electronic properties of aromatic rings. The compound exhibits excellent bench stability, facilitates efficient coupling reactions, and functions as a key scaffold in the development of bioactive peptides and CNS-targeted therapeutics.

General Information

CAS No. 31105-90-5
Cat. No. CS-0011206
Purity ≥95%
MDL No. MFCD01075125
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₉F₂NO₂
Molecular Weight 201.17
Synonym(s) Alanine, 3-(3,4-difluorophenyl)-, L- (8CI)
SMILES OC([C@@H](N)CC1=CC(F)=C(F)C=C1)=O

Computational Chemistry Data

TPSA 63.32
LogP 0.9192
H_Acceptors 2
H_Donors 2
Rotatable_Bonds 3

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Other Classifications

Bioactive Molecules Peptides

Life Science Amino Acids and their Derivatives Phenylalanine and derivatives

Chemical Biology Peptide Chemistry Amino Acid Derivatives

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3,4-Difluoro-L-phenylalanine

CAS No. 31105-90-5

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