C.I.Direct Red 4 structure

C.I.Direct Red 4

TL;DR: C.I.Direct Red 4 (CAS 6420-43-5) is a chemical compound with molecular formula C35H25N6Na3O12S3 and molecular weight 886.04 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

trisodium;4-hydroxy-7-[[7-hydroxy-6-[(2-methyl-4-sulfonatophenyl)diazenyl]-5-sulfonatonaphthalen-2-yl]carbamoylamino]-3-[(2-methylphenyl)diazenyl]naphthalene-2-sulfonate

Also Known As: C.I.Direct Red 4, C.I. Direct Red 62, Trisodium 4-hydroxy-7-((((5-hydroxy-7-sulphonato-6-((o-tolyl)azo)-2-naphthyl)amino)carbonyl)amino)-3-((2-methyl-4-sulphonatophenyl)azo)naphthalene-2-sulphonate, Trisodium;4-hydroxy-7-[[7-hydroxy-6-[(2-methyl-4-sulfonatophenyl)diazenyl]-5-sulfonatonaphthalen-2-yl]carbamoylamino]-3-[(2-methylphenyl)diazenyl]naphthalene-2-sulfonate, 2-Naphthalenesulfonic acid, 4-hydroxy-7-((((5-hydroxy-6-((2-methylphenyl)azo)-7-sulfo-2-naphthalenyl)amino)carbonyl)amino)-3-((2-methyl-4-sulfophenyl)azo)-, trisodium salt

CAS: 6420-43-5
Molecular Formula C35H25N6Na3O12S3
Molecular Weight 886.04 g/mol
LogP -1.78
Topological Polar Surface Area 328.0 Ų
Hydrogen Bond Donors 4
Hydrogen Bond Acceptors 16
Rotatable Bonds 6
Exact Mass 886.0386
Heavy Atoms 59
Complexity 1740.0

Chemical Identifiers

CAS Number 6420-43-5
SMILES CC1=CC=CC=C1N=NC2=C(C=C3C=C(C=CC3=C2O)NC(=O)NC4=CC5=CC(=C(C(=C5C=C4)S(=O)(=O)[O-])N=NC6=C(C=C(C=C6)S(=O)(=O)[O-])C)O)S(=O)(=O)[O-].[Na+].[Na+].[Na+]
InChIKey MCQJGPAUAOMLNM-UHFFFAOYSA-K

Product Overview

C.I.Direct Red 4 (CAS 6420-43-5), with molecular formula C35H25N6Na3O12S3 and molecular weight 886.04 g/mol. IUPAC: trisodium;4-hydroxy-7-[[7-hydroxy-6-[(2-methyl-4-sulfonatophenyl)diazenyl]-5-sulfonatonaphthalen-2-yl]carbamoylamino]-3-[(2-methylphenyl)diazenyl]naphthalene-2-sulfonate.

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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 C.I.Direct Red 4

XLogP
-1.78
TPSA (Topological Polar Surface Area)
328.0
Hydrogen Bond Donors
4
Hydrogen Bond Acceptors
16
Rotatable Bonds
6
Heavy Atoms
59
Complexity
1740.0
Exact Mass
886.0386
Monoisotopic Mass
886.0386
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 C.I.Direct Red 4

The XLogP value of -1.78 indicates that C.I.Direct Red 4 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 328.0 Ų indicates high polarity, suggesting C.I.Direct Red 4 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, C.I.Direct Red 4 has 4 hydrogen bond donor(s) and 16 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 C.I.Direct Red 4?

The CAS number of C.I.Direct Red 4 is 6420-43-5.

What is the molecular formula of C.I.Direct Red 4?

The molecular formula of C.I.Direct Red 4 is C35H25N6Na3O12S3.

What is the molecular weight of C.I.Direct Red 4?

The molecular weight of C.I.Direct Red 4 is 886.04 g/mol.

Where can I buy C.I.Direct Red 4?

You can request a quote for C.I.Direct Red 4 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for C.I.Direct Red 4?

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

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