L-Valyl-L-leucyl-L-valyl-L-leucine structure

L-Valyl-L-leucyl-L-valyl-L-leucine

TL;DR: L-Valyl-L-leucyl-L-valyl-L-leucine (CAS 143303-20-2) is a chemical compound with molecular formula C22H42N4O5 and molecular weight 442.32 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-methylbutanoyl]amino]-4-methylpentanoyl]amino]-3-methylbutanoyl]amino]-4-methylpentanoic acid

Also Known As: L-Valyl-L-leucyl-L-valyl-L-leucine, J1.597.637C, (2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-3-methylbutanamido]-4-methylpentanamido]-3-methylbutanamido]-4-methylpentanoic acid

CAS: 143303-20-2
Molecular Formula C22H42N4O5
Molecular Weight 442.32 g/mol
LogP 1.2569
Topological Polar Surface Area 150.62 Ų
Hydrogen Bond Donors 5
Hydrogen Bond Acceptors 5
Rotatable Bonds 13
Exact Mass 442.31552
Heavy Atoms 31
Complexity 619.0225

Chemical Identifiers

CAS Number 143303-20-2
SMILES CC(C)C[C@@H](C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(C)C)C(=O)O)NC(=O)[C@H](C(C)C)N

Product Overview

L-Valyl-L-leucyl-L-valyl-L-leucine (CAS 143303-20-2), with molecular formula C22H42N4O5 and molecular weight 442.32 g/mol. IUPAC: (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-methylbutanoyl]amino]-4-methylpentanoyl]amino]-3-methylbutanoyl]amino]-4-methylpentanoic acid.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of L-Valyl-L-leucyl-L-valyl-L-leucine

XLogP
1.2569
TPSA (Topological Polar Surface Area)
150.62
Hydrogen Bond Donors
5
Hydrogen Bond Acceptors
5
Rotatable Bonds
13
Heavy Atoms
31
Complexity
619.0225
Exact Mass
442.31552
Monoisotopic Mass
442.31552
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of L-Valyl-L-leucyl-L-valyl-L-leucine

The XLogP value of 1.2569 suggests moderate lipophilicity, balancing water solubility and membrane permeability for L-Valyl-L-leucyl-L-valyl-L-leucine. The TPSA of 150.62 Ų indicates high polarity, suggesting L-Valyl-L-leucyl-L-valyl-L-leucine may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, L-Valyl-L-leucyl-L-valyl-L-leucine has 5 hydrogen bond donor(s) and 5 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of L-Valyl-L-leucyl-L-valyl-L-leucine?

The CAS number of L-Valyl-L-leucyl-L-valyl-L-leucine is 143303-20-2.

What is the molecular formula of L-Valyl-L-leucyl-L-valyl-L-leucine?

The molecular formula of L-Valyl-L-leucyl-L-valyl-L-leucine is C22H42N4O5.

What is the molecular weight of L-Valyl-L-leucyl-L-valyl-L-leucine?

The molecular weight of L-Valyl-L-leucyl-L-valyl-L-leucine is 442.32 g/mol.

Where can I buy L-Valyl-L-leucyl-L-valyl-L-leucine?

You can request a quote for L-Valyl-L-leucyl-L-valyl-L-leucine directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for L-Valyl-L-leucyl-L-valyl-L-leucine?

Yes, KEHONG BIO provides custom synthesis services for L-Valyl-L-leucyl-L-valyl-L-leucine and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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