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294543

Sigma-Aldrich

2-(2-Thiazolylazo)-p-cresol

97%

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About This Item

Empirical Formula (Hill Notation):
C10H9N3OS
CAS Number:
1823-44-5
Molecular Weight:
219.26
MDL number:
MFCD00005323
UNSPSC Code:
12352100
PubChem Substance ID:
24857720
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
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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