Acid red 128 structure

Acid red 128

TL;DR: Acid red 128 (CAS 6548-30-7) is a chemical compound with molecular formula C37H28N4Na2O12S3 and molecular weight 862.07 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

disodium;7-hydroxy-8-[[2-methoxy-4-[3-methoxy-4-[[4-(4-methylphenyl)sulfonyloxyphenyl]diazenyl]phenyl]phenyl]diazenyl]naphthalene-1,3-disulfonate

Also Known As: Acid red 128, C.I. Acid Red 128, C.I. Acid Red 128, disodium salt, Disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate, Disodium;7-hydroxy-8-[[2-methoxy-4-[3-methoxy-4-[[4-(4-methylphenyl)sulfonyloxyphenyl]diazenyl]phenyl]phenyl]diazenyl]naphthalene-1,3-disulfonate

CAS: 6548-30-7
Molecular Formula C37H28N4Na2O12S3
Molecular Weight 862.07 g/mol
LogP 1.95272
Topological Polar Surface Area 271.0 Ų
Hydrogen Bond Donors 1
Hydrogen Bond Acceptors 16
Rotatable Bonds 10
Exact Mass 862.0661
Heavy Atoms 58
Complexity 1660.0

Chemical Identifiers

CAS Number 6548-30-7
SMILES CC1=CC=C(C=C1)S(=O)(=O)OC2=CC=C(C=C2)N=NC3=C(C=C(C=C3)C4=CC(=C(C=C4)N=NC5=C(C=CC6=CC(=CC(=C65)S(=O)(=O)[O-])S(=O)(=O)[O-])O)OC)OC.[Na+].[Na+]
InChIKey XLBRYSLVZOQGLJ-UHFFFAOYSA-L

Product Overview

Acid red 128 (CAS 6548-30-7), with molecular formula C37H28N4Na2O12S3 and molecular weight 862.07 g/mol. IUPAC: disodium;7-hydroxy-8-[[2-methoxy-4-[3-methoxy-4-[[4-(4-methylphenyl)sulfonyloxyphenyl]diazenyl]phenyl]phenyl]diazenyl]naphthalene-1,3-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 Acid red 128

XLogP
1.95272
TPSA (Topological Polar Surface Area)
271.0
Hydrogen Bond Donors
1
Hydrogen Bond Acceptors
16
Rotatable Bonds
10
Heavy Atoms
58
Complexity
1660.0
Exact Mass
862.0661
Monoisotopic Mass
862.0661
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 Acid red 128

The XLogP value of 1.95272 suggests moderate lipophilicity, balancing water solubility and membrane permeability for Acid red 128. The TPSA of 271.0 Ų indicates high polarity, suggesting Acid red 128 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Acid red 128 has 1 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 Acid red 128?

The CAS number of Acid red 128 is 6548-30-7.

What is the molecular formula of Acid red 128?

The molecular formula of Acid red 128 is C37H28N4Na2O12S3.

What is the molecular weight of Acid red 128?

The molecular weight of Acid red 128 is 862.07 g/mol.

Where can I buy Acid red 128?

You can request a quote for Acid red 128 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Acid red 128?

Yes, KEHONG BIO provides custom synthesis services for Acid red 128 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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