59659
Toluidine Red
analytical standard
Synonym(s):
Pigment Red 3
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About This Item
Empirical Formula (Hill Notation):
C17H13N3O3
CAS Number:
Molecular Weight:
307.30
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
85151701
EC Number:
219-372-2
MDL number:
grade
analytical standard
Quality Segment
assay
≥98.0% (HPLC)
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
mp
270-272 °C (lit.)
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
SMILES string
Cc1ccc(\N=N\c2c(O)ccc3ccccc23)c(c1)[N+]([O-])=O
InChI
1S/C17H13N3O3/c1-11-6-8-14(15(10-11)20(22)23)18-19-17-13-5-3-2-4-12(13)7-9-16(17)21/h2-10,21H,1H3/b19-18+
InChI key
ZLFVRXUOSPRRKQ-VHEBQXMUSA-N
General description
Toluidine Red is a synthetic organic dye belonging to the class of azo dyes, widely used for restoring or providing color to processed food products.
Application
Toluidine Red may be used as a reference dye for the quantification of the analyte in food products using high-performance liquid chromatography with gel permeation chromatography clean-up procedure.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Simultaneous determination of fifteen illegal dyes in animal feeds and poultry products by ultra-high-performance liquid chromatography tandem mass spectrometry
Liu R, et al.
Journal of Chromatography A, 879(24), 2416-2422 (2011)
Ying Jiang et al.
Sexually transmitted diseases, 38(3), 244-245 (2010-09-28)
We retrospectively analyzed the Venereal Disease Research Laboratory test, Treponema pallidum particle agglutination test, and toluidine red unheated serum test (TRUST) in 41 cases of HIV-negative neurosyphilis and 34 non-neurologic syphilitic patient and found that serum-TRUST titers could be the
CI Pigment Red 3.
IARC monographs on the evaluation of carcinogenic risks to humans, 57, 259-267 (1993-01-01)