Acid Red 40 structure

Acid Red 40

TL;DR: Acid Red 40 (CAS 12167-45-2) is a chemical compound with molecular formula C20H17N3Na2O8S2 and molecular weight 537.03 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

disodium;5-acetamido-3-[(3,4-dimethylphenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonate

Also Known As: Acid Red 40, Disodium 5-(acetylamino)-3-((dimethylphenyl)azo)-4-hydroxynaphthalene-2,7-disulphonate, Disodium 5-(acetylamino)-3-[(dimethylphenyl)azo]-4-hydroxynaphthalene-2,7-disulphonate, disodium;5-acetamido-3-[(3,4-dimethylphenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonate, Disodium 5-(acetylamino)-3-[(dimethylphenyl)azo]-4-hydroxynaphthalene-2,7-disulfonate

CAS: 12167-45-2
Molecular Formula C20H17N3Na2O8S2
Molecular Weight 537.03 g/mol
LogP -2.65
Topological Polar Surface Area 205.0 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 10
Rotatable Bonds 3
Exact Mass 537.02527
Heavy Atoms 35
Complexity 932.0

Chemical Identifiers

CAS Number 12167-45-2
SMILES CC1=C(C=C(C=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])NC(=O)C)O)C.[Na+].[Na+]
InChIKey IKDBCBTZCFSJJH-UHFFFAOYSA-L

Product Overview

Acid Red 40 (CAS 12167-45-2), with molecular formula C20H17N3Na2O8S2 and molecular weight 537.03 g/mol. IUPAC: disodium;5-acetamido-3-[(3,4-dimethylphenyl)diazenyl]-4-hydroxynaphthalene-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 Acid Red 40

XLogP
-2.65
TPSA (Topological Polar Surface Area)
205.0
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
10
Rotatable Bonds
3
Heavy Atoms
35
Complexity
932.0
Exact Mass
537.02527
Monoisotopic Mass
537.02527
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 40

The XLogP value of -2.65 indicates that Acid Red 40 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 205.0 Ų indicates high polarity, suggesting Acid Red 40 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Acid Red 40 has 2 hydrogen bond donor(s) and 10 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 40?

The CAS number of Acid Red 40 is 12167-45-2.

What is the molecular formula of Acid Red 40?

The molecular formula of Acid Red 40 is C20H17N3Na2O8S2.

What is the molecular weight of Acid Red 40?

The molecular weight of Acid Red 40 is 537.03 g/mol.

Where can I buy Acid Red 40?

You can request a quote for Acid Red 40 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Acid Red 40?

Yes, KEHONG BIO provides custom synthesis services for Acid Red 40 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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