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pararosaniline

Structure via PubChem · Public domain (PubChem)

EntityQ421256· pop 14· linked from 14 articles

pararosaniline

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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.

Chemical data

Formula
C19H17N3
Molecular weight
287.4 g/mol
IUPAC name
4-[(4-aminophenyl)-(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]aniline
SMILES
C1=CC(=N)C=CC1=C(C2=CC=C(C=C2)N)C3=CC=C(C=C3)N
InChIKey
AFAIELJLZYUNPW-UHFFFAOYSA-N
XLogP
3.3
Polar surface area
75.9 Ų
H-bond donors
3
H-bond acceptors
3
Formal charge
0

via PubChem

Drug data · ChEMBL

Max clinical phase
Phase 2
Molecule type
Small molecule

via ChEMBL · EBI

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.