Basic information
- CAS
19379-19-2- Standard SMILES
CC1=CC(=C(c2ccc(N)c(S(=O)(=O)O)c2)c2ccc(N)c(S(=O)(=O)O)c2)C=C(S(=O)(=O)O)C1=N- InChIKey
FKDGKTNDRAXENR-UHFFFAOYSA-N- Molecular formula
- C20H19N3O9S3
- Average molar mass
- 541.6 g/mol
- Monoisotopic mass
- 541.02834271
Overview
Acid fuchsin (free acid form) is an arenesulfonic acid that is 3-[(4-amino-3-methylphenyl)(4-aminophenyl)methylidene]-6-iminocyclohexa-1,4-diene-1-sulfonic acid in which the hydrogens ortho to the amino functions are replaced by phenyl groups. The disodium salt is the biological stain 'acid fuchsin'. It is an imine, an arenesulfonic acid and a primary arylamine. It is a conjugate acid of an acid fuchsin(2-).
Names & identifiers
- Preferred name
- Acid fuchsine FB
- IUPAC
- 3-[bis(4-amino-3-sulfophenyl)methylidene]-6-imino-5-methylcyclohexa-1,4-diene-1-sulfonic acid
Names & synonyms
Acid fuchsine FBRefChem:552603Acidal fuchsineAcid fuchsinAcid fuschinAcid fuchsineAcidal magentaFuchsin acidp-Fuchsine acidAcid fuchsine NAcid fuchsine OAcid fuchsine S
Show more names
Kiton magenta AAcid magenta OAcid leather magenta A19379-19-22-Amino-5-((4-amino-3-sulfophenyl)(4-imino-3-sulfocyclohexa-2,5-dien-1-ylidene)methyl)-3-methylbenzenesulfonic acid3244-88-0C.I. Acid Violet 19Rubine S
Database identifiers
- CAS
19379-19-2- PubChem CID
- 72203
- ChEBI
CHEBI:87059- Nikkaji
- J312.384G
Properties
Computed structural properties
- XLogP
- 1.2
- Topological polar surface area
- 264 Ų
- Hydrogen bond donors
- 6
- Hydrogen bond acceptors
- 12
- Rotatable bonds
- 5
- Heavy atoms
- 35
- Formal charge
- 0
- Complexity
- 1,240
Chemistry & industry
Uses & manufacturing
Use ClassificationFood Additives -> COLOUR -> JECFA Functional Classes
Related reactions
0 records
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Compound notes
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