Naphthalenesulfonate

Naphthalenesulfonates

amaranth dye

amido black

congo red

suramin

trypan blue

Naphthalenesulfonates are derivatives of sulfonic acid which contain a naphthalene functional unit. A related family of compounds are the aminonaphthalenesulfonic acids. Of commercial importance are the alkylnaphthalene sulfonates, which are used as superplasticizers in concrete. They are produced on a large scale by condensation of naphthalenesulfonate or alkylnaphthalenesulfonates with formaldehyde.^[1][2]

Examples include:

• amaranth dye
• amido black
• armstrong's acid
• congo red
• Evans blue
• suramin
• trypan blue

References

1. Booth, Gerald (2005). "Naphthalene Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_009. ISBN 978-3527306732.
2. Collin, Gerd; Höke, Hartmut; Greim, Helmut (2003). "Naphthalene and Hydronaphthalenes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_001.pub2. ISBN 978-3527306732.

External links

• Naphthalenesulfonates at the U.S. National Library of Medicine Medical Subject Headings (MeSH)