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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

Quality Level

100

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV8094
MKCK9687
09326TH
11708BE
07623CE

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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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