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Sigma-Aldrich

2-(2-Thiazolylazo)-p-cresol

97%

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About This Item

Empirical Formula (Hill Notation):
C10H9N3OS
CAS Number:
Molecular Weight:
219.26
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

assay

97%

mp

130-132 °C (lit.)

solubility

soluble 50 mg/mL, clear, red to red-brown (ethanol:CHCl3 (1:1))

SMILES string

Cc1ccc(O)c(c1)\N=N\c2nccs2

InChI

1S/C10H9N3OS/c1-7-2-3-9(14)8(6-7)12-13-10-11-4-5-15-10/h2-6,14H,1H3/b13-12+

InChI key

MZRKINSTWYZJLV-OUKQBFOZSA-N

Application

2-(2-Thiazolylazo)-p-cresol is a heterocyclic azo-dye2, has been used:
  • as iron binding ligand during determination of iron speciation in seawater by cathodic stripping voltammetry
  • in spectrophotometric determination of vanadium, titanium, lead, indium and nickel
  • as as a spectrophotometric reagent in the determination of uranium in mine drainage water samples

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

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


Certificates of Analysis (COA)

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Spectrophotometric determination of uranium using 2-(2-thiazolylazo)-p-cresol (TAC) in the presence of surfactants.
Teixeira LSG, et al.
Journal of the Brazilian Chemical Society, 10(6), 519-522 (1999)
Determination of Iron Speciation by Cathodic Stripping Voltammetry in Seawater Using the Competing Ligand 2-(2-Thiazolylazo)-p-cresol (TAC).
Croot PL and Johansson M.
Electroanalysis, 12(8), 565-576 (2000)

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