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Merck
CN

215945

Pararosaniline acetate

Dye content 90 %

Synonym(s):

Basic Parafuchsin, Basic Red 9, Magenta™ O

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About This Item

Empirical Formula (Hill Notation):
C19H17N3 · C2H4O2
CAS Number:
6035-94-5
Molecular Weight:
347.41
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24852923
EC Number:
227-918-6
Colour Index Number:
42500
MDL number:
MFCD00012570

Key Documents

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InChI key

YIXIVOYGLPFDCY-UHFFFAOYSA-N

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)

SMILES string

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

form

solid

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

Quality Level

200

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
GHS08

signalword

Warning

hcodes

H351

Hazard Classifications

Carc. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT5665
SHBQ5431
SHBP6808
SHBN6954
MKCM4758

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Comparative effects of cationic triarylmethane, phenoxazine and phenothiazine dyes on horse serum butyrylcholinesterase.
Yucel YY
Archives of Biochemistry and Biophysics, 478, 201-205 (2008)
Michael D. Larra?aga, Richard J. Lewis, Robert A. Lewis
Hawley's Condensed Chemical Dictionary (2016)
C.I. Basic Red 9 monohydrochloride.
Report on carcinogens : carcinogen profiles, 11, III66-III67 (2004-01-01)
Determination of formaldehyde in indoor air by a solid sorbent technique.
P E Georghiou et al.
IARC scientific publications, (109)(109), 251-255 (1993-01-01)
Basic red 9 monohydrochloride.
Report on carcinogens : carcinogen profiles, 12, 59-60 (2011-08-13)
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