Acid Funchsin
Name: Acid Funchsin
CAS Registry Number: 3244-88-0
CA Index Name: Benzenesulfonic acid, 2-amino-5-[(4-amino-3-sulfophenyl)(4-imino-3-sulfo-2,5-cyclohexadien-1-ylidene)methyl]-3-methyl-, sodium salt
Other Names: Benzenesulfonic acid, 2-amino-5-[(4-amino-3-sulfophenyl)(4-imino-3-sulfo-2,5-cyclohexadien-1-ylidene)methyl]-3-methyl-, disodium salt; C.I. Acid Violet 19; C.I. Acid Violet 19, disodium salt; Rubine S; Acid Fuchsine; Acid Fuchsine FB; Acid Fuchsine N; Acid Fuchsine O; Acid Fuchsine S; Acid Leather Magenta A; Acid Magenta; Acid Magenta O; Acid Violet 19; Acid fuchsin sodium salt; Acid rosein; Acid rubin; Acidal Fuchsine; Acidal Magenta; Albion Acid Magenta; Andradeindicator; C.I. 42685; Fuchine Acid Photo Grade; Fuchsin S; Fuchsin acid; Fuchsine acid; Kiton Magenta A; Triacid Magenta; p-Fuchsine acid
Merck Index Number: 107
Chemical / Dye Class: Triphenylmethane
Molecular Formula: C20H17N3Na2O9S3
Molecular Weight: 585.54
Physical Form: Olive to dark olive-green crystals or powder
Solubility: Very soluble in water; slightly soluble to insoluble in ethanol; insoluble in xylene
Melting Point: > 250 °C
pH Range: 12.0-14.0
Color Change at pH: Red (12.0) to colorless (14.0)
Absorption (λmax): 546 nm
Emission (λmax): 630 nm
Synthesis: Synthetic methods
Staining Applications: Antigen; bacteria; collagen; fungi; fats; neurons; paraffin sections; proteins; starch; processed food; tumor cells; decayed teeth; lips; hairs
Biological Applications: Detecting enzyme activity, proteins, tumor cells
Industrial Applications: Color filter; recording material; photographic film; inks; highlighters; paints; explosives; corrosion inhibitors; leathers; textiles
Safety / Toxicity: Acute oral toxicity; genotoxi-city; neurotoxicity
Certification / Approval: Certified by Biological Stain Commission (BSC)
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