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Merck
CN

55838

Basic Red 9

analytical standard

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C19H17N3 · HCl
CAS Number:
569-61-9
Molecular Weight:
323.82
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329758164
EC Number:
209-321-2
Beilstein/REAXYS Number:
4164603
MDL number:
MFCD00001657

Key Documents

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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

SMILES string

[Cl-].Nc1ccc(cc1)C(\c2ccc(N)cc2)=C3/C=CC(=[NH2+])C=C3

grade

analytical standard

assay

≥98.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

mp

268-270 °C (dec.) (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

Quality Level

100

General description

Basic Red 9 (BR9) is a triphenylmethane dye, employed in textile, leather, paper, ink industries, for staining bacteria, antibody, in Feulgen reaction and Gomori′s aldehyde-fuchsin method of staining elastic tissues. BR9 is also utilized in the analysis of SO2 and formaldehyde in air and water. Under anaerobic conditions, these dyes can decompose into carcinogenic aromatic amines and thus reported to be toxic to the environment.

Application

Basic Red 9 may be used as an analytical standard for the determination of the analyte in toys by LC,coupled to UV/Vis spectrometry and tandem mass spectrometry, foodstuffs by ultra-high-performance liquid chromatography-tandem mass spectrometry and wastewater using polyurethane foam functionalized with tannic acid.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

Magenta is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H350

Hazard Classifications

Carc. 1B

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCBZ6823

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Degradation of pararosaniline (CI Basic Red 9 monohydrochloride) dye by ozonation and sonolysis
Martins A, et al.
Dyes and Pigments, 68(2-3), 227-234 (2006)
Determination of azine and triphenyl methane dye in wastewater using polyurethane foam functionalized with tannic acid
Moawed, Elhossein A and Alqarni, Yanallah
Preparative Biochemistry & Biotechnology, 1(2013), 18-27 (2013)
Determination of carcinogenic and allergenic dyestuffs in toys by LC coupled to UV/Vis spectrometry and tandem mass spectrometry
Ma Q, et al.
Chromatographia, 72(1-2), 85-93 (2010)
Weiguo Liu et al.
Food chemistry, 300, 125183-125183 (2019-07-25)
A reasonable, high sensitive and accurate analytical method for the determination of 20 allergenic disperse dyes in foodstuffs was developed and validated. The obtained results showed that an ultra high liquid performance chromatography system - equipped with tandem quadrupole mass
Determination of adsorptive properties of expanded vermiculite for the removal of CI Basic Red 9 from aqueous solution: kinetic, isotherm and thermodynamic studies
Duman O, et al.
Applied Clay Science, 109, 22-32 (2015)
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