Basic Brown 4 structure

Basic Brown 4

TL;DR: Basic Brown 4 (CAS 5421-66-9) is a chemical compound with molecular formula C21H26Cl2N8 and molecular weight 460.17 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

4-[[3-[(2,4-diamino-5-methylphenyl)diazenyl]-4-methylphenyl]diazenyl]-6-methylbenzene-1,3-diamine;dihydrochloride

Also Known As: Bismarck Brown R, Bismark Brown R, Basic Brown 4, Bismarck Brown, Vesuvine

CAS: 5421-66-9
Molecular Formula C21H26Cl2N8
Molecular Weight 460.17 g/mol
LogP 6.62
Topological Polar Surface Area 154.0 Ų
Hydrogen Bond Donors 6
Hydrogen Bond Acceptors 8
Rotatable Bonds 4
Exact Mass 460.16574
Heavy Atoms 31
Complexity 581.0

Chemical Identifiers

CAS Number 5421-66-9
SMILES CC1=C(C=C(C=C1)N=NC2=C(C=C(C(=C2)C)N)N)N=NC3=C(C=C(C(=C3)C)N)N.Cl.Cl
InChIKey WLKAMFOFXYCYDK-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 1 IPC patent classification(s) across the SureChEMBL global patent database.

Pharmaceutical Intermediates (2 patents)

Product Overview

Basic Brown 4 (CAS 5421-66-9), with molecular formula C21H26Cl2N8 and molecular weight 460.17 g/mol. IUPAC: 4-[[3-[(2,4-diamino-5-methylphenyl)diazenyl]-4-methylphenyl]diazenyl]-6-methylbenzene-1,3-diamine;dihydrochloride.

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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 Basic Brown 4

XLogP
6.62
TPSA (Topological Polar Surface Area)
154.0
Hydrogen Bond Donors
6
Hydrogen Bond Acceptors
8
Rotatable Bonds
4
Heavy Atoms
31
Complexity
581.0
Exact Mass
460.16574
Monoisotopic Mass
460.16574
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 Basic Brown 4

The XLogP value of 6.62 indicates that Basic Brown 4 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 154.0 Ų indicates high polarity, suggesting Basic Brown 4 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Basic Brown 4 has 6 hydrogen bond donor(s) and 8 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 Basic Brown 4?

The CAS number of Basic Brown 4 is 5421-66-9.

What is the molecular formula of Basic Brown 4?

The molecular formula of Basic Brown 4 is C21H26Cl2N8.

What is the molecular weight of Basic Brown 4?

The molecular weight of Basic Brown 4 is 460.17 g/mol.

Where can I buy Basic Brown 4?

You can request a quote for Basic Brown 4 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Basic Brown 4?

Yes, KEHONG BIO provides custom synthesis services for Basic Brown 4 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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