Direct Brown 31 structure

Direct Brown 31

TL;DR: Direct Brown 31 (CAS 2429-81-4) is a chemical compound with molecular formula C46H30N10Na4O13S3 and molecular weight 1118.07 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

tetrasodium;5-[[4-[4-[[2,6-diamino-3-[[8-hydroxy-3,6-disulfonato-7-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalen-2-yl]diazenyl]-5-methylphenyl]diazenyl]phenyl]phenyl]diazenyl]-2-hydroxybenzoate

Also Known As: Direct Brown 31, Chocolate EMBL, Diazol cutch F, Diazol cutch FB, Triazol Brown B

CAS: 2429-81-4
Molecular Formula C46H30N10Na4O13S3
Molecular Weight 1118.07 g/mol
LogP -2.7
Topological Polar Surface Area 428.0 Ų
Hydrogen Bond Donors 4
Hydrogen Bond Acceptors 23
Rotatable Bonds 9
Exact Mass 1118.0747
Heavy Atoms 76
Complexity 2290.0

Chemical Identifiers

CAS Number 2429-81-4
SMILES CC1=CC(=C(C(=C1N)N=NC2=CC=C(C=C2)C3=CC=C(C=C3)N=NC4=CC(=C(C=C4)O)C(=O)[O-])N)N=NC5=C(C=C6C=C(C(=C(C6=C5)O)N=NC7=CC=C(C8=CC=CC=C87)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
InChIKey DWAUTGHCJRNULO-UHFFFAOYSA-J

Product Overview

Direct Brown 31 (CAS 2429-81-4), with molecular formula C46H30N10Na4O13S3 and molecular weight 1118.07 g/mol. IUPAC: tetrasodium;5-[[4-[4-[[2,6-diamino-3-[[8-hydroxy-3,6-disulfonato-7-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalen-2-yl]diazenyl]-5-methylphenyl]diazenyl]phenyl]phenyl]diazenyl]-2-hydroxybenzoate.

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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 Direct Brown 31

XLogP
-2.7
TPSA (Topological Polar Surface Area)
428.0
Hydrogen Bond Donors
4
Hydrogen Bond Acceptors
23
Rotatable Bonds
9
Heavy Atoms
76
Complexity
2290.0
Exact Mass
1118.0747
Monoisotopic Mass
1118.0747
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 Direct Brown 31

The XLogP value of -2.7 indicates that Direct Brown 31 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 428.0 Ų indicates high polarity, suggesting Direct Brown 31 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Direct Brown 31 has 4 hydrogen bond donor(s) and 23 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 Direct Brown 31?

The CAS number of Direct Brown 31 is 2429-81-4.

What is the molecular formula of Direct Brown 31?

The molecular formula of Direct Brown 31 is C46H30N10Na4O13S3.

What is the molecular weight of Direct Brown 31?

The molecular weight of Direct Brown 31 is 1118.07 g/mol.

Where can I buy Direct Brown 31?

You can request a quote for Direct Brown 31 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Direct Brown 31?

Yes, KEHONG BIO provides custom synthesis services for Direct Brown 31 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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