Skip to content
EntityQ421256· pop 14· linked from 14 articles

pararosaniline

Sign in to save

Also known as basic fuchsin, Basic Red 9, 4-(4,4'-diamino-benzhydrylidene)-cyclohexa-2,5-dienone-imine

Pararosaniline, pararosaniline free base, Basic Red 9, or C.I. 42500 is an organic compound with the formula . It is the free base form of pararosaniline hydrochloride, , a magenta solid with a variety of uses as a dye. It is one of the four components of basic fuchsine. It is structurally related to other triarylmethane dyes called methyl violets (e.g. crystal violet) which feature methyl groups on nitrogen.

Wikidata facts

Mass
287.142
Show 3 more facts
canonical SMILES
C1=CC(=N)C=CC1=C(C2=CC=C(C=C2)N)C3=CC=C(C=C3)N
chemical formula
C₁₉H₁₇N₃
Commons category
Parafuchsine
Sources (2)

via Wikidata · CC0

~1 min read

Encyclopedic overview

4 sections
Contents
  • Uses
  • Related compounds
  • References
  • Further reading

Pararosaniline, pararosaniline free base, Basic Red 9, or C.I. 42500 is an organic compound with the formula . It is the free base form of pararosaniline hydrochloride, , a magenta solid with a variety of uses as a dye. It is one of the four components of basic fuchsine. It is structurally related to other triarylmethane dyes called methyl violets (e.g. crystal violet) which feature methyl groups on nitrogen.

It is prepared by the condensation of aniline and . Alternatively, it arises from the oxidation of 4,4'-bis(aminophenyl)methane in the presence of aniline.

Excerpted from Wikipedia’s “pararosaniline” article, available under the CC BY-SA 4.0 licence.