Direct Red 46 structure

Direct Red 46

TL;DR: Direct Red 46 (CAS 6548-29-4) is a chemical compound with molecular formula C32H18Cl2N6Na4O12S4 and molecular weight 967.88 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

tetrasodium;3-amino-4-[[4-[4-[(2-amino-3,6-disulfonatonaphthalen-1-yl)diazenyl]-3-chlorophenyl]-2-chlorophenyl]diazenyl]naphthalene-2,7-disulfonate

Also Known As: Direct Red 46, Fast purpurine, Diphenyl Red 8B, Acetopurpurine 8B, Direct Red 8BS

CAS: 6548-29-4
Molecular Formula C32H18Cl2N6Na4O12S4
Molecular Weight 967.88 g/mol
LogP -5.41
Topological Polar Surface Area 364.0 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 18
Rotatable Bonds 5
Exact Mass 967.88336
Heavy Atoms 60
Complexity 1730.0

Chemical Identifiers

CAS Number 6548-29-4
SMILES C1=CC(=C(C=C1C2=CC(=C(C=C2)N=NC3=C4C=CC(=CC4=CC(=C3N)S(=O)(=O)[O-])S(=O)(=O)[O-])Cl)Cl)N=NC5=C6C=CC(=CC6=CC(=C5N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
InChIKey CVJSWNBRXDCNDI-UHFFFAOYSA-J

Product Overview

Direct Red 46 (CAS 6548-29-4), with molecular formula C32H18Cl2N6Na4O12S4 and molecular weight 967.88 g/mol. IUPAC: tetrasodium;3-amino-4-[[4-[4-[(2-amino-3,6-disulfonatonaphthalen-1-yl)diazenyl]-3-chlorophenyl]-2-chlorophenyl]diazenyl]naphthalene-2,7-disulfonate.

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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 Red 46

XLogP
-5.41
TPSA (Topological Polar Surface Area)
364.0
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
18
Rotatable Bonds
5
Heavy Atoms
60
Complexity
1730.0
Exact Mass
967.88336
Monoisotopic Mass
967.88336
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 Red 46

The XLogP value of -5.41 indicates that Direct Red 46 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 364.0 Ų indicates high polarity, suggesting Direct Red 46 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Direct Red 46 has 2 hydrogen bond donor(s) and 18 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 Red 46?

The CAS number of Direct Red 46 is 6548-29-4.

What is the molecular formula of Direct Red 46?

The molecular formula of Direct Red 46 is C32H18Cl2N6Na4O12S4.

What is the molecular weight of Direct Red 46?

The molecular weight of Direct Red 46 is 967.88 g/mol.

Where can I buy Direct Red 46?

You can request a quote for Direct Red 46 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Direct Red 46?

Yes, KEHONG BIO provides custom synthesis services for Direct Red 46 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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