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215945

Sigma-Aldrich

Pararosaniline acetate

Dye content 90 %

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Synonym(s):
Basic Parafuchsin, Basic Red 9, Magenta O
Empirical Formula (Hill Notation):
C19H17N3 · C2H4O2
CAS Number:
Molecular Weight:
347.41
Colour Index Number:
42500
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

solid

Quality Level

composition

Dye content, 90%

mp

203 °C (dec.) (lit.)

solubility

95% ethanol: 0.1%

λmax

545 nm

ε (extinction coefficient)

≥11000 at 235-241 nm in ethanol: water (1:1) at 0.004%
≥16000 at 286-292 nm in ethanol: water (1:1) at 0.004%
≥78000 at 543-549 nm in ethanol: water (1:1) at 0.004%

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

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

InChI

1S/C19H17N3.C2H4O2/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;1-2(3)4/h1-12,20H,21-22H2;1H3,(H,3,4)

InChI key

YIXIVOYGLPFDCY-UHFFFAOYSA-N

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Related Categories

Biochem/physiol Actions

Pararosaniline acetate is one of the components of basic fuchsin. It acts as a reversible, linear inhibitor of horse butyrylcholinesterase (BChE).

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

signalword

Warning

hcodes

Hazard Classifications

Carc. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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