Acid fuchsin

Base Information

• Chemical Name: Acid fuchsin
• CAS No.: 3244-88-0
• Deprecated CAS: 6611-36-5,8052-89-9
• Molecular Formula: C20H17N3Na2O9S3
• Molecular Weight: 585.54
• Hs Code.: 32041200
• European Community (EC) Number: 221-816-5
• Wikipedia: Acid_fuchsin
• Mol file: 3244-88-0.mol

Synonyms:acid fuchsin;acid violet 19;acid-fuchsin;ammonium acid fuchsin;C.I. acid violet 19

Chemical Property of Acid fuchsin

Chemical Property:

• Appearance/Colour: dark green crystalline powder
• Vapor Pressure: 0Pa at 25℃
• Melting Point: > 130ºC
• PSA: 269.80000
• Density: 1.74[at 20℃]
• LogP: 5.63530
• Storage Temp.: Store at RT.
• Solubility.: H2O: soluble1mg/mL
• Water Solubility.: 14.3 g/100 mL
• Hydrogen Bond Donor Count: 4
• Hydrogen Bond Acceptor Count: 12
• Rotatable Bond Count: 3
• Exact Mass: 584.99223121
• Heavy Atom Count: 37
• Complexity: 1270

Purity/Quality:

99.8 % ^*data from raw suppliers

Acid Fuchsin ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-24/25

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Dyes -> Di- and Triaryl Dyes
• Canonical SMILES: CC1=CC(=C(C2=CC(=C(C=C2)N)S(=O)(=O)O)C3=CC(=C(C=C3)N)S(=O)(=O)[O-])C=C(C1=N)S(=O)(=O)[O-].[Na+].[Na+]
• Isomeric SMILES: CC1=C/C(=C(/C2=CC(=C(C=C2)N)S(=O)(=O)O)\C3=CC(=C(C=C3)N)S(=O)(=O)[O-])/C=C(C1=N)S(=O)(=O)[O-].[Na+].[Na+]
• Description: Fuchsin acid (Acid magenta) is a red, acid dye of the triphenylmethane series, consisting of the sodium salts of the sulphonic acids of basic fuchsin or of the individual dyes (pararosaniline, rosaniline and new fuchsin), of which the latter is a mixture. The composition of fuchsin acid, like fuchsin basic, can vary with the country of origin and from one manufacturer to another. Industrial uses of the dye include the colouring of crepe tissues, soap and photographic films and the dyeing of leather, which it penetrates easily. A 1 % solution of Microme No. 5 in deionized or distilled water (previously adjusted to pH 7-0 with alkali) has a pH of 5-0. Fuchsin acid is decolorized in solution by the addition of NaOH and in this form it is used as an indicator (known as Andrade's indicator) : this finds application in bacteriology for detecting acid-forming organisms. Very dilute aqueous solutions of the dye in London tap water (pH about 8-1) fade within two or three seconds. In deionized water they retain their colour considerably longer, however.
• Uses: As pH indicator; biological stain. Acid Fuchsin sodium salt is used as a pH indicator. It is one of the dyes used in Masson?s Trichome Stain where it is used to distinguish muscle from collagen. Acid Fuchsin has been used in tissue sections for Masson′s trichrome staining. It has been used as a marker to trace ingestion of solutions by green peach aphids.