Ammonium tetrathiomolybdate

Ammonium tetrathiomolybdate
Names
	Other names ammonium thiomolybdate
Identifiers
CAS Number	15060-55-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	10764593 ;
ECHA InfoCard	100.167.865
PubChem CID	15251598;
RTECS number	QA4668250;
UNII	4V6I63LW1E;
CompTox Dashboard (EPA)	DTXSID30895067 ;
	InChI InChI=1S/Mo.2H3N.4S/h;21H3;;;;/q;;;;;2-1/p+2 Key: PQNOIAHNKHBLRN-UHFFFAOYSA-P ; InChI=1S/Mo.2H3N.4S/h;21H3;;;;/q;;;;;2-1/p+2; Key: PQNOIAHNKHBLRN-UHFFFAOYSA-P;
	SMILES [NH4+].[NH4+].[S-][Mo]([S-])(=S)=S;
Properties
Chemical formula	(NH4)2MoS4
Molar mass	260.28 g/mol
Appearance	red crystals
Melting point	decomp ~ 155 °C
Basicity (pKb)	decomposes
Structure
Crystal structure
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	toxic
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Related compounds
Related compounds	(NH4)2[WS4],; MoS2
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Ammonium tetrathiomolybdate is the chemical compound with the formula (NH₄)₂MoS₄. This bright red ammonium salt is an important reagent in the chemistry of molybdenum and has been used as a building block in bioinorganic chemistry. The thiometallate (see metallate) anion has the distinctive property of undergoing oxidation at the sulfur centers concomitant with reduction of the metal from Mo(VI) to Mo(IV).

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