What is P Rosaniline?
Pararosaniline, Basic Red 9, or C.I. 42500 is an organic compound with the formula [(H2NC6H4)3C]Cl. It is a magenta solid with a variety of uses as a dye. It is one of the four components of basic fuchsine. (The others are rosaniline, new fuchsine and magenta II.)
What is Pararosaniline hydrochloride?
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.
What is fuchsin solution?
Introduction. Basic Fuchsin is a fluorescent dye containing a mixture of rosaniline, pararosaniline, magenta II, and new fuchsine. The basic fuchsin is a cationic triphenylmethane dye used for the detection of acid-fast bacilli and is commonly used in the Ziehl Neelsen staining technique.
What type of dye used in coloring textile in staining bacteria and sometimes a disinfectant?
fuchsine
As well as dying textiles, fuchsine is used to stain bacteria and sometimes as a disinfectant.
What is the use of Schiff reagent?
Schiff’s reagent A reagent used for testing for aldehydes and ketones; it consists of a solution of fuchsin dye that has been decolorized by sulphur dioxide. Aliphatic aldehydes restore the pink immediately, whereas aromatic ketones have no effect on the reagent.
What is the formula of Rosaniline?
C20H20N3·HCl
Fuchsine/Formula
What does Fuchsin mean?
Definition of fuchsin : a dye that is produced by oxidation of a mixture of aniline and toluidines and yields a brilliant bluish red.
What is vat dyeing process?
Vat dyeing is a process that refers to dyeing that takes place in a bucket or vat. The original vat dye is indigo, once obtained only from plants but now often produced synthetically.
What is a Schiff?
A Schiff base (named after Hugo Schiff) is a compound with the general structure R1R2C=NR’ (R’ ≠ H). The term Schiff base is normally applied to these compounds when they are being used as ligands to form coordination complexes with metal ions.
What does Schiff’s test for?
The Schiff test is an early organic chemistry named reaction developed by Hugo Schiff, and is a relatively general chemical test for detection of many organic aldehydes that has also found use in the staining of biological tissues.
Which is the monohydrochloride of dianiline pararosaniline?
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+).
What kind of structure is found in rosaniline?
Compounds that contain the triphenylmethane aniline structure found in rosaniline. Many of them have a characteristic magenta color and are used as coloring agents. PHYSICAL STATE.
Which is the correct formula for pararosaniline red 9?
Pararosaniline, Basic Red 9, or C.I. 42500 is an organic compound with the formula [(H2NC6H4)3C]Cl. It is a magenta solid with a variety of uses as a dye. It is one of the four components of basic fuchsine.
What are the CAS No’s for pararosaniline hydrochloride?
CAS-No. : Pararosaniline Hydrochloride : 569-61-9 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Industrial & for professional use only. 1.3 Details of the supplier of the safety data sheet