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E129 structure
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E129

TL;DR: E129 (CAS 25956-17-6) is a chemical compound with molecular formula C18H14N2Na2O8S2 and molecular weight 495.9987 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.

disodium;6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate

Also Known As: Allura Red AC, Allura Red, Allura red AC dye, Curry red, Fancy Red

CAS Number
25956-17-6
Molecular Formula
C18H14N2Na2O8S2
Molecular Weight
495.9987 g/mol
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Application Areas

Top 5 of 3 IPC patent classification(s) from the SureChEMBL global patent database.

Coatings & Adhesives (1 patents) Pharmaceutical Intermediates (14 patents) Polymer Intermediates (4 patents)

Technical Specifications

Molecular FormulaC18H14N2Na2O8S2
Molecular Weight495.9987 g/mol
XLogP-2.91
Topological Polar Surface Area (TPSA)185.0 Ų
Hydrogen Bond Donors1
Hydrogen Bond Acceptors10
Rotatable Bonds3
Exact Mass495.9987 Da
Heavy Atoms32
Complexity809.0
SMILESCC1=CC(=C(C=C1S(=O)(=O)[O-])OC)N=NC2=C(C=CC3=C2C=CC(=C3)S(=O)(=O)[O-])O.[Na+].[Na+]
InChIKeyCEZCCHQBSQPRMU-UHFFFAOYSA-L

Chemical Property Profile of E129

XLogP
-2.91
TPSA (Topological Polar Surface Area)
185.0
Hydrogen Bond Donors
1
Hydrogen Bond Acceptors
10
Rotatable Bonds
3
Heavy Atoms
32
Complexity
809.0
Exact Mass
495.9987
Monoisotopic Mass
495.9987
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 E129

The XLogP value of -2.91 indicates that E129 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 185.0 Ų indicates high polarity, suggesting E129 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, E129 has 1 hydrogen bond donor(s) and 10 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the CAS number of E129?

The CAS number of E129 is 25956-17-6.

What is the molecular formula of E129?

The molecular formula of E129 is C18H14N2Na2O8S2.

What is the molecular weight of E129?

The molecular weight of E129 is 495.9987 g/mol.

Where can I buy E129?

You can request a quote for E129 directly from CoreyChem. Contact us or email [email protected] for pricing and availability.

Does CoreyChem offer custom synthesis for E129?

Yes, CoreyChem provides custom synthesis services for E129 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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