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Sigma-Aldrich

Ammonium tetrathiotungstate

≥99.9% trace metals basis

Synonym(s):

Ammonium tungsten sulfide ((NH4 )2 WS4 ), Bis(ammonium) tetrathiotungstate(2-) , Diammonium tetrathiotungstate, Diammonium tetrathiotungstate(2-)

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About This Item

Linear Formula:
(NH4)2WS4
CAS Number:
13862-78-7
Molecular Weight:
348.18
MDL number:
MFCD00061410
UNSPSC Code:
12352300
PubChem Substance ID:
24860418
NACRES:
NA.23

Assay

≥99.9% trace metals basis

form

crystalline

density

2.71 g/mL at 25 °C (lit.)

SMILES string

N.N.S[W](S)(=S)=S

InChI

1S/2H3N.2H2S.2S.W/h2*1H3;2*1H2;;;/q;;;;;;+2/p-2

InChI key

MZSROLOWPFQNGM-UHFFFAOYSA-L

Related Categories

Application

This classic building block for transition metal sulfide cluster compounds was recently used in a low-temperature, solid state synthesis of a new series of heterometallic sulfide clusters stabilized with dppm [bis(diphenylphosphino)methane] ligands.

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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Kyung-Hee Park et al.
Chemical & pharmaceutical bulletin, 54(9), 1266-1270 (2006-09-02)
Tyrosinase requires two copper ions at the active site, in order to oxidize phenols to catechols. In this study, the inhibitory effect of the copper-chelating compound, ammonium tetrathiotungstate (ATTT), on the tyrosinase activity was investigated. ATTT was determined to inactivate
Guoqing Hou et al.
Translational research : the journal of laboratory and clinical medicine, 149(5), 260-264 (2007-05-01)
Tetrathiomolybdate (TM) is an anticopper drug under development for treating Wilson's disease. Its mechanism of action involves forming a tight tripartite complex in the blood with serum albumin and available copper. When available copper levels are lowered in animals with
Shu Min Tan et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(35), 8510-8519 (2017-04-28)
A multitude of research into the application of transition-metal dichalcogenides as earth-abundant hydrogen evolution reaction (HER) electrocatalysts has been conducted. However, current synthetic methods generally deploy environmentally harmful chemicals and energy-consuming reaction conditions, despite the primary intent to attain renewable
B W Young et al.
Journal of inorganic biochemistry, 16(2), 121-134 (1982-04-01)
The effects of dietary supplementation with ammonium tetrathiotungstate and dithiotungstate on copper metabolism in young rats have been investigated. The addition of WS4(2-) (4-32 mg W/kg diet) decreased growth rates and induced clinical and biochemical signs of Cu deficiency. These
J Mason et al.
Journal of inorganic biochemistry, 35(2), 115-126 (1989-02-01)
[185W]trithio- and tetrathiotungstates (0.5 mg W) were injected intravenously into sheep. The compounds circulated in plasma bound reversibly to plasma proteins, particularly to albumin. After the first few minutes, levels declined exponentially with a T 1/2 of 12-14 hr. The
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