Arg-Ser structure

Arg-Ser

TL;DR: Arg-Ser (CAS 70921-62-9) is a chemical compound with molecular formula C9H19N5O4 and molecular weight 261.14 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(2S)-2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxypropanoic acid

Also Known As: Arginyl-Serine, Arg-Ser, arginylserine, H-Arg-Ser-OH, RS dipeptide

CAS: 70921-62-9
Molecular Formula C9H19N5O4
Molecular Weight 261.14 g/mol
LogP -3.071
Topological Polar Surface Area 177.05 Ų
Hydrogen Bond Donors 6
Hydrogen Bond Acceptors 5
Rotatable Bonds 8
Exact Mass 261.1437
Heavy Atoms 18
Complexity 316.07986

Chemical Identifiers

CAS Number 70921-62-9
SMILES C(C[C@@H](C(=O)N[C@@H](CO)C(=O)O)N)CN=C(N)N

Product Overview

Arg-Ser (CAS 70921-62-9), with molecular formula C9H19N5O4 and molecular weight 261.14 g/mol. IUPAC: (2S)-2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxypropanoic 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 Arg-Ser

XLogP
-3.071
TPSA (Topological Polar Surface Area)
177.05
Hydrogen Bond Donors
6
Hydrogen Bond Acceptors
5
Rotatable Bonds
8
Heavy Atoms
18
Complexity
316.07986
Exact Mass
261.1437
Monoisotopic Mass
261.1437
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 Arg-Ser

The XLogP value of -3.071 indicates that Arg-Ser is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 177.05 Ų indicates high polarity, suggesting Arg-Ser may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Arg-Ser has 6 hydrogen bond donor(s) and 5 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 Arg-Ser?

The CAS number of Arg-Ser is 70921-62-9.

What is the molecular formula of Arg-Ser?

The molecular formula of Arg-Ser is C9H19N5O4.

What is the molecular weight of Arg-Ser?

The molecular weight of Arg-Ser is 261.14 g/mol.

Where can I buy Arg-Ser?

You can request a quote for Arg-Ser directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Arg-Ser?

Yes, KEHONG BIO provides custom synthesis services for Arg-Ser and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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