Pararosaniline hydrochloride CAS: 569-61-9
MF: C19H17N3•HCl
MW: 323.82
The primary component of Basic Fuchsin mixtures.

Pararosaniline hydrochloride (CAS 569-61-9)

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Alternate Names: Basic Red 9; Basic Parafuchsin
Application: Pararosaniline hydrochloride is the primary component of Basic Fuchsin mixtures
CAS Number: 569-61-9
Molecular Weight: 323.82
Molecular Formula: C19H17N3•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
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Pararosaniline hydrochloride is the main, pure component of Basic Fuchsin mixtures. It is used in acid-fast staining procedures that use carbol-fusion. It is used in Endo medium, a solution used in bacteriological analysis. It is used as Schiff's reagent in the Periodic Acid Schiff and Feulgen techniques, staining methods used in pathology and histology. It is also used in Gomori's aldehyde fuchsin method for hepatitis B surface antigen and pancreatic B cells.


1. Penney, D.P., et al. 2002. Biotech. Histochem. 77: 237-275. PMID: 12564600

Physical State :
Solubility :
Soluble in water (2-3 mg/ml), ethanol (2-25 mg/ml), ether, and diethyl ether.
Storage :
Store at room temperature
Melting Point :
268-270° C
Refractive Index :
n20D 1.33
pK Values :
pKb: 7.03
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
PubChem CID :
MDL Number :
EC Number :
Beilstein Registry :

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Certificate of Analysis

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Pararosaniline hydrochloride (CAS 569-61-9) Product Citations

See how others have used Pararosaniline hydrochloride (CAS 569-61-9). Click on the entry to view the PubMed entry .

Citations 1 to 4 of 4 total

PMID: # 19526318  Monda, M. et al. 2009. J. Muscle Res. Cell. Motil. 30: 139-144.

PMID: # 16551623  Kartvelishvily, E. et al. 2006. J. Biol. Chem. 281: 14151-14162.

PMID: # 12799492  Krishnan, S. et al. 2003. J. Biosci. 28: 455-469.

PMID: # 10889301  Leiro, J. et al. 2000. Vet. Immunol. Immunopathol. 75: 81-95.

Citations 1 to 4 of 4 total

What is the purity of pararoseaniline hydrochloride?

Asked by: Lo29
Thank you for your question. Each lot of this chemical comes with a lot-specific Certificate Of Analysis which typically describes the percent purity as well as the method used to determine the purity. You may request a lot-specific Certificate Of Analysis on our website. Alternatively, please contact our Technical Service Department to inquire about the purity of our most recent lot.
Answered by: Technical Support
Date published: 2017-09-11
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