Lot numbers can be found on the outside label of a product:
L-Alanyl-L-leucine
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CAS No. 3303-34-2
- Cat. No. CS-W020828
- Purity≥98%
- MDL No.MFCD00065106
*For research and further manufacturing use only, not for direct human use.
Structure of 3303-34-2
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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
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.
Synthesis
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Route1
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56-41-7 -
61-90-5 - ~%
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In-stock
3303-34-2
References
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EP1941896 A1, ; Page/Page column 6 ;
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Route2
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In-stock
15761-38-3 - ~%
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In-stock
3303-34-2
References
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Journal of the American Chemical Society, , vol. 107, # 14 p. 4249 - 4252
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Route3
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In-stock
4530-20-5 - ~%
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In-stock
3303-34-2
References
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Journal of the American Chemical Society, , vol. 107, # 14 p. 4249 - 4252
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Safety Information
Download SDS|
GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501
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Quality Control
Computational Chemistry Data
- TPSA 92.42
- LogP -0.0509
- H_Acceptors 3
- H_Donors 3
- Rotatable_Bonds 5
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Key Words
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