Acid Red 131 structure

Acid Red 131

TL;DR: Acid Red 131 (CAS 70210-37-6) is a chemical compound with molecular formula C30H21N3Na2O9S2 and molecular weight 677.05 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

disodium;5-benzamido-4-hydroxy-3-[[2-(2-methylphenoxy)phenyl]diazenyl]naphthalene-2,7-disulfonate

Also Known As: Acid Red 131, Disodium 5-(benzoylamino)-4-hydroxy-3-[[2-(2-methylphenoxy)phenyl]azo]naphthalene-2,7-disulphonate, 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-4-hydroxy-3-(2-(2-(2-methylphenoxy)phenyl)diazenyl)-, sodium salt (1:2), 5-(benzoylamino)-4-hydroxy-3-2-(2-methylphenoxy)phenylazonaphthalene-2,7-disulphonate (sodium salt), disodium;5-benzamido-4-hydroxy-3-[[2-(2-methylphenoxy)phenyl]diazenyl]naphthalene-2,7-disulfonate

CAS: 70210-37-6
Molecular Formula C30H21N3Na2O9S2
Molecular Weight 677.05 g/mol
LogP 0.13002
Topological Polar Surface Area 214.0 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 11
Rotatable Bonds 6
Exact Mass 677.05145
Heavy Atoms 46
Complexity 1200.0

Chemical Identifiers

CAS Number 70210-37-6
SMILES CC1=CC=CC=C1OC2=CC=CC=C2N=NC3=C(C4=C(C=C(C=C4C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])NC(=O)C5=CC=CC=C5)O.[Na+].[Na+]
InChIKey UZSOSPUHRLUDJW-UHFFFAOYSA-L

Product Overview

Acid Red 131 (CAS 70210-37-6), with molecular formula C30H21N3Na2O9S2 and molecular weight 677.05 g/mol. IUPAC: disodium;5-benzamido-4-hydroxy-3-[[2-(2-methylphenoxy)phenyl]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 Acid Red 131

XLogP
0.13002
TPSA (Topological Polar Surface Area)
214.0
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
11
Rotatable Bonds
6
Heavy Atoms
46
Complexity
1200.0
Exact Mass
677.05145
Monoisotopic Mass
677.05145
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 131

The XLogP value of 0.13002 suggests moderate lipophilicity, balancing water solubility and membrane permeability for Acid Red 131. The TPSA of 214.0 Ų indicates high polarity, suggesting Acid Red 131 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Acid Red 131 has 2 hydrogen bond donor(s) and 11 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 131?

The CAS number of Acid Red 131 is 70210-37-6.

What is the molecular formula of Acid Red 131?

The molecular formula of Acid Red 131 is C30H21N3Na2O9S2.

What is the molecular weight of Acid Red 131?

The molecular weight of Acid Red 131 is 677.05 g/mol.

Where can I buy Acid Red 131?

You can request a quote for Acid Red 131 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Acid Red 131?

Yes, KEHONG BIO provides custom synthesis services for Acid Red 131 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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