Metanil yellow: Difference between revisions

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== Description ==
== Description ==


A orangish-yellow synthetic monoazo dye discovered independently by C.Rumpff in 1879 and Hepp in 1882. Metanil yellow is used to dye [http://cameo.mfa.org/materials/fullrecord.asp?name=leather leather], [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool], [http://cameo.mfa.org/materials/fullrecord.asp?name=silk silk], [http://cameo.mfa.org/materials/fullrecord.asp?name=nylon nylon], and [http://cameo.mfa.org/materials/fullrecord.asp?name=paper paper].
A orangish-yellow synthetic monoazo dye discovered independently by C.Rumpff in 1879 and Hepp in 1882. Metanil yellow is used to dye [[leather|leather]], [[wool|wool]], [[silk|silk]], [[nylon|nylon]], and [[paper|paper]].


== Synonyms and Related Terms ==
== Synonyms and Related Terms ==


CI 13065; Acid Yellow 36
Acid Yellow 36; CI 13065; CAS 587-98-4


{| class="wikitable"
==Risks==
|-
* Toxic causing nerve and enzyme damage
! scope="row"| CAS
* Illegal for food use although often found as an adulterant for turmeric
| 587-98-4
|}


== Authority ==
==Physical and Chemical Properties==
* Soluble in water
* Indicator = Red (below 1.2) and yellow (above 3.2)
* Composition = C18H14N3NaO3S
* Molecular weight = 375.4 g/mol
* Melting Pt = >250 C


==Resources and Citations==
* Wikipedia: [https://en.wikipedia.org/wiki/Metanil_Yellow Metanil Yellow] Accessed May 2026
* PubChem: [https://pubchem.ncbi.nlm.nih.gov/compound/Metanil_yellow Metanil Yellow]
* Colour Index International online at www.colour-index.org
* Colour Index International online at www.colour-index.org


Latest revision as of 10:11, 9 May 2026

Description

A orangish-yellow synthetic monoazo dye discovered independently by C.Rumpff in 1879 and Hepp in 1882. Metanil yellow is used to dye leather, wool, silk, nylon, and paper.

Synonyms and Related Terms

Acid Yellow 36; CI 13065; CAS 587-98-4

Risks

  • Toxic causing nerve and enzyme damage
  • Illegal for food use although often found as an adulterant for turmeric

Physical and Chemical Properties

  • Soluble in water
  • Indicator = Red (below 1.2) and yellow (above 3.2)
  • Composition = C18H14N3NaO3S
  • Molecular weight = 375.4 g/mol
  • Melting Pt = >250 C

Resources and Citations

Retrieved from "https://cameo.mfa.org/index.php?title=Metanil_yellow&oldid=106040"