Pararosaniline, pararosaniline free base, Basic Red 9, or C.I. 42500 is an organic compound with the formula (H2NC6H4)2C= (C6H4NH). [1] . It is the free base form of pararosaniline hydrochloride, [ (H2NC6H4)3C]+Cl−, a magenta solid with a variety of uses as a dye. [2][3] It is one of the four components of basic fuchsine. [4] .

Pararosaniline is a hydrochloride that is the monohydrochloride of 4,4'- [ (4-iminocyclohexa-2,5-dien-1-ylidene)methanediyl]dianiline. One of the major constituents of Basic fuchsin, together with rosanilin, magenta II and new fuchsin. It has a role as a histological dye and a fluorochrome. It contains a pararosaniline (1+).

p-Rosaniline Hydrochloride 90780 (Pararosaniline Hydrochloride, Pararosaniline Chloride, Basic Parafuchsin) (C.I. No. 42500)

Pararosaniline hydrochloride (P3750) is a dye in basic fuschin component for Schiff reagent preparation, staining cytology samples and tissue sections.

Pararosaniline Hydrochloride, also known as Basic Red 9 or p-rosaniline hydrochloride, is an organic compound and a magenta solid which is used as a dye. Ungraded products supplied by TCI America are generally suitable for common industrial uses or for research purposes but typically are not suitable for human consumption or therapeutic use.

2024年1月3日 · Pararosaniline hydrochloride is a pH-responsive basic dye, as a biological stain to track certain proteins. Pararosaniline hydrochloride has been used in the analysis of SO2 and formaldehyde and staining of bacteria or other organisms [1] [2].

Pararosaniline Hydrochloride; Product No: P0599; CAS RN: 569-61-9; Purity: >95.0%(HPLC); Synonyms: Parafuchsin, Basic Red 9; Appearance: 538.0 to 541.0 nm(H2O), min. 95.0 area%, Dark green to Dark blue to Black powder to crystal, min. 0.400(2mg/L, H2O, 538.0 to 541.0 nm)(calcd.on dried substance), max. 10.0 %, max. 0.5 %, to pass test, confirm ...

Fuchsine (sometimes spelled fuchsin) or rosaniline hydrochloride is a magenta dye with chemical formula C 20 H 19 N 3 ·HCl. [ 1 ] [ 2 ] There are other similar chemical formulations of products sold as fuchsine, and several dozen other synonyms of this molecule.

Hexazonium pararosaniline is a valuable reagent that has been used in enzyme activity histochemistry for 50 years. It is an aqueous solution containing the tris-diazonium ion derived from pararosaniline, an aminotriarylmethane dye, and it contains an excess of nitrous acid.

Part B. CAS : 569-61-9. Molecular Formula : C19H18N3Cl. Save as PDF. Specifications