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139432

Sigma-Aldrich

1,3,4-Thiadiazole-2,5-dithiol dipotassium salt

98%

Synonym(s):

Bismuthiol I dipotassium salt, 2,5-Dimercapto-1,3,4-thiadiazole dipotassium salt, Bismuththiol I dipotassium salt

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About This Item

Empirical Formula (Hill Notation):
C2K2N2S3
CAS Number:
4628-94-8
Molecular Weight:
226.43
Beilstein:
4917786
EC Number:
225-043-4
MDL number:
MFCD00003104
UNSPSC Code:
12352100
PubChem Substance ID:
24848411
NACRES:
NA.22

Quality Level

100

Assay

98%

mp

274-276 °C (dec.) (lit.)

SMILES string

[K]Sc1nnc(S[K])s1

InChI

1S/C2H2N2S3.2K/c5-1-3-4-2(6)7-1;;/h(H,3,5)(H,4,6);;/q;2*+1/p-2

InChI key

GPWLFGDMYSVEGN-UHFFFAOYSA-L

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General description

1,3,4-thiadiazole-2,5-dithiol undergoes copolymerization with 1+, 2+ and 3+ valent metals to form coordination polymers. It forms polymers with metals and can be useful in treatment of metal-polluted water.

Application

1,3,4-thiadiazole-2,5-dithiol (Bismuthiol I) was used in determination of tellurium in indium phosphide doped with cadmium telluride by electrothermal atomic absorption spectrometry.

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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Determination of tellurium in indium phosphide by electrothermal atomic absorption spectrometry and ultraviolet-visible spectrophotometry.
Taddia M, et al.
Journal of Analytical Atomic Spectrometry, 10(6), 433-437 (1995)
Synthesis of metallic azoderivatives of 2-amino-5-mercapto-1, 3, 4-thiadiazole.
Ortega-Luoni P, et al.
Journal of the Chilean Chemical Society, 52(1), 1120-1122 (2007)
Coordination polymers from 1, 3, 4-thiadiazole-2, 5-dithiol and metal ions.
Ortega P, etal.
Macromolecular Chemistry and Physics, 198(9), 2949-2956 (1997)
N N Ugarova et al.
Biokhimiia (Moscow, Russia), 45(12), 2243-2253 (1980-12-01)
The individual and combined oxidation of 5-mercapto-1,3,4-thiadiazolthione-2 (bismuthol I) and 3,3'-dimethoxybenzidine (o-dianisidine) by hydrogen peroxide catalyzed by horseradish peroxidase (pH 5,0) was studied. It was shown that bismuthol I is a substrate for peroxidase, which is competitive towards o-dianisidine. In
M Jamaluddin Ahmed et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 18(7), 805-810 (2002-07-26)
A simple spectrophotometric method is presented for the rapid determination of copper at a trace level using 2,5-dimercapto-1,3,4-thiadiazole (DMTD) as a new spectrophotometric reagent. The method is based on the reaction of non-absorbent DMTD in a slightly acidic (0.002-0.014 mol
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