L-Alanyl-L-leucine

Name: L-Alanyl-L-leucine
Brand: ChemScene
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CAS No. 3303-34-2
Cat. No. CS-W020828
Purity≥98%
MDL No.MFCD00065106

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Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

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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.

*For research and further manufacturing use only, not for direct human use.

Structure of 3303-34-2

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Description

L-Alanyl-L-leucine is a dipeptide featuring a stable amide linkage between L-alanine and L-leucine, offering enhanced solubility and metabolic stability compared to free amino acids. This structural motif enables efficient incorporation into peptide synthesis workflows, particularly in the development of bioactive sequences requiring protease resistance and controlled degradation kinetics.

Application

L-Alanyl-L-leucine serves as a well-defined dipeptide building block for peptide synthesis, offering robust bench stability and straightforward purification. Its orthogonal side-chain functionality enables selective derivatization in multi-step sequences, while the N-terminal amine and C-terminal carboxylate support standard coupling protocols. Functions effectively in solid-phase and solution-phase methodologies for peptide library construction and fragment-based drug discovery.

General Information

CAS No. 3303-34-2
Cat. No. CS-W020828
Purity ≥98%
MDL No. MFCD00065106
Storage -20°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₁₈N₂O₃
Molecular Weight 202.25
Synonym(s) H-Ala-Leu-OH
SMILES CC(C)C[C@@H](C(O)=O)NC([C@H](C)N)=O

Computational Chemistry Data

TPSA 92.42
LogP -0.0509
H_Acceptors 3
H_Donors 3
Rotatable_Bonds 5

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-P330-P362+P364-P405-P501

Quality Control

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Other Classifications

Bioactive Molecules Natural Products

Life Science Amino Acids and their Derivatives Leucine and derivatives

Chemical Biology Peptide Chemistry Amino Acid Derivatives

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L-Alanyl-L-leucine

CAS No. 3303-34-2

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