Dark green crystalline powder
Carbol-fuchsin solution (Castellani’s paint) is an aqueous alcohol-acetone
solution containing phenol (4.5 g/100 mL), resorcinol (10 g/100 mL), and
basic fuschin (300 mg/100 mL). The basic fuschin appears as a dark purple
liquid that appears red on the skin and can stain. It has local anesthetic,
bactericidal, and fungicidal properties. It has also been reported to stimulate
granulation and epithelization. It is applied topically in the treatment of
subacute and chronic superficial fungal infection. It is particularly effective
in intertriginous areas.
Carbol-Fuschin is poisonous when ingested and is treated in the same
manner as phenol or resorcinol poisoning.
ChEBI: A hydrochloride that is the monohydrochloride of 4-[(4-aminophenyl)(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]-2-methylaniline. One of the minor constituents of Basic fuchsin, together with pararosanilin, rosanilin and new fuchsin.