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P3750

Sigma-Aldrich

Pararosaniline hydrochloride

>85% purity (HPLC), powder

Synonym(s):

Basic Fuchsin, Basic Parafuchsin, Basic Red 9, Magenta™ O, Parafuchsin hydrochloride, Paramagenta hydrochloride, Pararosaniline chloride

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About This Item

Linear Formula:
C19H18N3Cl
CAS Number:
569-61-9
Molecular Weight:
323.82
Colour Index Number:
42500
Beilstein:
4164603
EC Number:
209-321-2
MDL number:
MFCD00001657
UNSPSC Code:
12171500
PubChem Substance ID:
24898444
NACRES:
NA.47

product name

Pararosaniline hydrochloride, >85.0% (HPLC)

Quality Level

200

Assay

>85.0% (HPLC)

form

powder or crystals

color

green to very dark green

mp

268-270 °C

solubility

ethanol: 1 mg/mL

εmax

≥17000 at 286-292 nm in 50% ethanol at 0.003 g/L
≥80000 at 543-549 nm in 50% ethanol at 0.003 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cl.Nc1ccc(cc1)C(\c2ccc(N)cc2)=C3/C=CC(=N)C=C3

InChI

1S/C19H17N3.ClH/c20-16-7-1-13(2-8-16)19(14-3-9-17(21)10-4-14)15-5-11-18(22)12-6-15;/h1-12,20H,21-22H2;1H

InChI key

JUQPZRLQQYSMEQ-UHFFFAOYSA-N

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General description

Pararosaniline is a cationic triarylmethane dye and one of the components of basic fuchsin. It gives a brilliant red color after dyeing polyacrylonitrile fibers.

Application

Pararosaniline hydrochloride has been used:
  • to prepare Schiff reagent
  • to stain cow endometrial cytology samples
  • to counterstain Prussian blue sections of mice brains

Other Notes

This is the pure, principal component of mixtures commonly referred to as Basic Fuchsin.

Legal Information

Magenta is a trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H350

Hazard Classifications

Carc. 1B

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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