(D-Ala2)-leucine enkephalin-arg structure

(D-Ala2)-leucine enkephalin-arg

TL;DR: (D-Ala2)-leucine enkephalin-arg (CAS 81733-79-1) is a chemical compound with molecular formula C35H51N9O8 and molecular weight 725.39 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

2-[[2-[[2-[[2-[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoylamino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid

Also Known As: Dalargin, (D-ALA2)-LEUCINE ENKEPHALIN-ARG, (D-ALA2)-LEUCINEENKEPHALIN-ARG, Dalargin; [DAla2, Leu5, Arg6] Enkephalin, 2-[[2-[[2-[[2-[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoylamino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid

CAS: 81733-79-1
Molecular Formula C35H51N9O8
Molecular Weight 725.39 g/mol
LogP -1.2357
Topological Polar Surface Area 293.45 Ų
Hydrogen Bond Donors 10
Hydrogen Bond Acceptors 9
Rotatable Bonds 21
Exact Mass 725.38605
Heavy Atoms 52
Complexity 1532.5613

Chemical Identifiers

CAS Number 81733-79-1
SMILES CC(C)CC(C(=O)NC(CCCN=C(N)N)C(=O)O)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)C(C)NC(=O)C(CC2=CC=C(C=C2)O)N

Product Overview

(D-Ala2)-leucine enkephalin-arg (CAS 81733-79-1), with molecular formula C35H51N9O8 and molecular weight 725.39 g/mol. IUPAC: 2-[[2-[[2-[[2-[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoylamino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic 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 (D-Ala2)-leucine enkephalin-arg

XLogP
-1.2357
TPSA (Topological Polar Surface Area)
293.45
Hydrogen Bond Donors
10
Hydrogen Bond Acceptors
9
Rotatable Bonds
21
Heavy Atoms
52
Complexity
1532.5613
Exact Mass
725.38605
Monoisotopic Mass
725.38605
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 (D-Ala2)-leucine enkephalin-arg

The XLogP value of -1.2357 indicates that (D-Ala2)-leucine enkephalin-arg is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 293.45 Ų indicates high polarity, suggesting (D-Ala2)-leucine enkephalin-arg may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, (D-Ala2)-leucine enkephalin-arg has 10 hydrogen bond donor(s) and 9 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

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 (D-Ala2)-leucine enkephalin-arg?

The CAS number of (D-Ala2)-leucine enkephalin-arg is 81733-79-1.

What is the molecular formula of (D-Ala2)-leucine enkephalin-arg?

The molecular formula of (D-Ala2)-leucine enkephalin-arg is C35H51N9O8.

What is the molecular weight of (D-Ala2)-leucine enkephalin-arg?

The molecular weight of (D-Ala2)-leucine enkephalin-arg is 725.39 g/mol.

Where can I buy (D-Ala2)-leucine enkephalin-arg?

You can request a quote for (D-Ala2)-leucine enkephalin-arg directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for (D-Ala2)-leucine enkephalin-arg?

Yes, KEHONG BIO provides custom synthesis services for (D-Ala2)-leucine enkephalin-arg and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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