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FD&C Yellow No. 2 structure
Fine Chemical

FD&C Yellow No. 2

TL;DR: FD&C Yellow No. 2 (CAS 549-34-8) is a chemical compound with molecular formula C10H4K2N2O8S and molecular weight 389.89624 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.

dipotassium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate

Also Known As: Sulfur Yellow S, Naphthol Yellow S, Dipotassium flavianate, FD&C Yellow No. 2, FD and C Yellow No. 2

CAS Number
549-34-8
Molecular Formula
C10H4K2N2O8S
Molecular Weight
389.89624 g/mol
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Technical Specifications

Molecular FormulaC10H4K2N2O8S
Molecular Weight389.89624 g/mol
XLogP-5.36
Topological Polar Surface Area (TPSA)180.0 Ų
Hydrogen Bond Donors0
Hydrogen Bond Acceptors8
Rotatable Bonds0
Exact Mass389.89624 Da
Heavy Atoms23
Complexity519.0
SMILESC1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-].[K+].[K+]
InChIKeyJEAVZHPHDNESJD-UHFFFAOYSA-L

Product Description

Applications: FD&C Yellow No. 2 is used in organic synthesis and process chemistry. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton scale), with full analytical documentation (COA, MSDS, HPLC, NMR, MS).

FD&C Yellow No. 2 (CAS 549-34-8) is a fine chemical with the molecular formula C10H4K2N2O8S and a molecular weight of 389.9 g/mol. Synonyms include Sulfur Yellow S and Naphthol Yellow S.

Custom synthesis and full analytical documentation (COA/MSDS) are available from CoreyChem. Request a quotation with your required quantity and purity for current lead time and pricing.

Chemical Property Profile of FD&C Yellow No. 2

XLogP
-5.36
TPSA (Topological Polar Surface Area)
180.0
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
8
Rotatable Bonds
0
Heavy Atoms
23
Complexity
519.0
Exact Mass
389.89624
Monoisotopic Mass
389.89624
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 FD&C Yellow No. 2

The XLogP value of -5.36 indicates that FD&C Yellow No. 2 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 180.0 Ų indicates high polarity, suggesting FD&C Yellow No. 2 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, FD&C Yellow No. 2 has 0 hydrogen bond donor(s) and 8 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the CAS number of FD&C Yellow No. 2?

The CAS number of FD&C Yellow No. 2 is 549-34-8.

What is the molecular formula of FD&C Yellow No. 2?

The molecular formula of FD&C Yellow No. 2 is C10H4K2N2O8S.

What is the molecular weight of FD&C Yellow No. 2?

The molecular weight of FD&C Yellow No. 2 is 389.89624 g/mol.

What are the applications of FD&C Yellow No. 2?

FD&C Yellow No. 2 is used in organic synthesis and process chemistry. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton scale), with full analytical documentation (COA, MSDS, HPLC, NMR, MS).

Where can I buy FD&C Yellow No. 2?

You can request a quote for FD&C Yellow No. 2 directly from CoreyChem. Contact us or email [email protected] for pricing and availability.

Does CoreyChem offer custom synthesis for FD&C Yellow No. 2?

Yes, CoreyChem provides custom synthesis services for FD&C Yellow No. 2 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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