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199753

Sigma-Aldrich

Toluidine Red

Dye content 70 %

Synonym(s):

Pigment Red 3

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About This Item

Empirical Formula (Hill Notation):
C17H13N3O3
CAS Number:
2425-85-6
Molecular Weight:
307.30
Colour Index Number:
12120
EC Number:
219-372-2
MDL number:
MFCD00003910
UNSPSC Code:
12171500
PubChem Substance ID:
24851937
NACRES:
NA.47

form

powder

composition

Dye content, 70%

mp

270-272 °C (lit.)

λmax

398 nm
507 nm (2nd)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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

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Pictograms

CorrosionEnvironment
GHS05,GHS09

Signal Word

Danger

Hazard Statements

H318,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKBH6850V
14296TJ
05314BE
05731EO
3217TE

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CI Pigment Red 3.
IARC monographs on the evaluation of carcinogenic risks to humans, 57, 259-267 (1993-01-01)
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
V Badireenath Konkimalla et al.
Expert review of anticancer therapy, 7(3), 317-329 (2007-03-07)
Oral squamous cell carcinoma ranks among the top ten most common cancers worldwide. Despite the success in diagnosis and therapy during the past 30 years, oral squamous cell carcinoma still belongs to the tumor types with a very unfavorable prognosis.
C E Parham et al.
Journal of clinical microbiology, 20(3), 434-437 (1984-09-01)
The toluidine red unheated serum test (TRUST) antigen, a macroscopic flocculation test antigen developed by Pettit et al. (J. Clin. Microbiol. 18:1141-1145, 1983) by modifying the color-coded antigen of Kasatiya and Lambert (Appl. Microbiol. 28:317-318, 1974), was compared with the
S A Larsen et al.
Journal of clinical microbiology, 17(2), 341-345 (1983-02-01)
Both the rapid plasma reagin (RPR) 18-mm circle card test and the toluidine red unheated serum test (TRUST) were designed to be more rapid than the Venereal Disease Research Laboratory slide test for the serodiagnosis of syphilis. The RPR card
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