Fmoc-Tyr(3,5-Cl2)-OH

Name: Fmoc-Tyr(3,5-Cl2)-OH
Brand: ChemScene
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CAS No. 1391508-43-2
Cat. No. CS-0527293
Purity≥97%
MDL No.None

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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+

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General Information

CAS No. 1391508-43-2
Cat. No. CS-0527293
Purity ≥97%
MDL No. None
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₂₄H₁₉Cl₂NO₅
Molecular Weight 472.32
Synonym(s) FMOC-PHE(3,5-CL 2, 4-OH)-OH
SMILES ClC(C=C1C[C@@H](C(O)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)=C(C(Cl)=C1)O

Description

Fmoc-Tyr(3,5-Cl2)-OH features a tyrosine residue bearing dichloro substituents at the meta positions of the phenolic ring, enhancing electron-withdrawing character and metabolic stability. This derivative integrates readily into peptide chains under standard coupling conditions, offering improved solubility and resistance to oxidative degradation during synthesis.

Application

Fmoc-Tyr(3,5-Cl₂)-OH serves as a valuable building block for peptide synthesis, enabling the incorporation of a doubly chlorinated tyrosine residue with enhanced electron-withdrawing character. The ortho-chlorination improves metabolic stability and modulates hydrogen-bonding capacity, while the Fmoc group ensures efficient N-terminal protection and compatibility with standard solid-phase protocols. This derivative exhibits excellent bench stability, facile purification, and broad functional group tolerance in both solution- and solid-phase synthesis.

Safety Information

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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

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Computational Chemistry Data

TPSA 95.86
LogP 5.2334
H_Acceptors 4
H_Donors 3
Rotatable_Bonds 6

Other Classifications

Building Blocks Functional Group Fmoc

Building Blocks Skeleton Chiral compounds Chiral Building Blocks

Chemical Biology Peptide Chemistry Amine Protection

Chemical Biology Peptide Chemistry Unnatural Amino Acid Derivatives

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Fmoc-Tyr(3,5-Cl2)-OH

CAS No. 1391508-43-2

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