Ammonium Tetrathiomolybdate



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(2N) 99% Ammonium Tetrathiomolybdate AM-THMO-02 Request Quote
(3N) 99.9% Ammonium Tetrathiomolybdate AM-THMO-03 Request Quote
(4N) 99.99% Ammonium Tetrathiomolybdate AM-THMO-04 Request Quote
(5N) 99.999% Ammonium Tetrathiomolybdate AM-THMO-05 Request Quote


Compound Formula H8MoN2S4
Molecular Weight 260.28
Appearance Red. green, purple, or black powder
Melting Point >300 °C
Boiling Point N/A
Density N/A
Monoisotopic Mass 261.86244
Exact Mass 261.86244
Charge -6

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A


Ammonium Tetrathiomolybdate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Diammonium disulfido(dithioxo)molybdenum; Ammonium molybdenum sulfide; Diammonium tetrathioxomolybdate(2-); diammonium molybdenum tetrasulfide; Thiomolybdic acid, diammonium salt; Molybdate(2-), tetrathioxo-, diammonium, (T-4)-

Chemical Identifiers

Formula (NH4)2MoS4
CAS 15060-55-6
Pubchem CID 10106661
MDL MFCD00136013
EC No. N/A
IUPAC Name diazanium; molybdenum; tetrasulfide
Beilstein Registry No. N/A
SMILES [S-2].[S-2].[S-2].[S-2].[Mo].[NH4+].[NH4+]
InchI Identifier InChI=1S/Mo.2H3N.4S/h;2*1H3;;;;/q;;;4*-2/p+2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Molybdenum products. Molybdenum (atomic symbol: Mo, atomic number: 42) is a Block D, Group 6, Period 5 element with an atomic weight of 95.96. Molybdenum Bohr ModelThe number of electrons in each of molybdenum's shells is [2, 8, 18, 13, 1] and its electron configuration is [Kr] 4d5 5s1. The molybdenum atom has a radius of 139 pm and a Van der Waals radius of 209 pm. In its elemental form, molybdenum has a gray metallic appearance. Molybdenum was discovered by Carl Wilhelm in 1778 and first isolated by Peter Jacob Hjelm in 1781. Molybdenum is the 54th most abundant element in the earth's crust. Elemental MolybdenumIt has the third highest melting point of any element, exceeded only by tungsten and tantalum. Molybdenum does not occur naturally as a free metal, it is found in various oxidation states in minerals. The primary commercial source of molybdenum is molybdenite, although it is also recovered as a byproduct of copper and tungsten mining. The origin of the name Molybdenum comes from the Greek word molubdos meaning lead.

See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.

Recent Research

Alterations in trace element levels and mRNA expression of Hsps and inflammatory cytokines in livers of duck exposed to molybdenum or/and cadmium., Cao, Huabin, Gao Feiyan, Xia Bing, Zhang Mengmeng, Liao Yilin, Yang Zhi, Hu Guoliang, and Zhang Caiying , Ecotoxicol Environ Saf, 2016 Mar, Volume 125, p.93-101, (2016)

Aquatic acute toxicity assessments of molybdenum (+VI) to Daphnia magna., Wang, Chi-Wei, Liang Chenju, and Yeh Hui-Ju , Chemosphere, 2016 Mar, Volume 147, p.82-7, (2016)

Mitochondrial oxidative stress-induced hepatocyte apoptosis reflects increased molybdenum intake in caprine., Zhuang, Yu, Liu Ping, Wang Liqi, Luo Junrong, Zhang Caiying, Guo Xiaoquan, Hu Guoliang, and Cao Huabin , Biol Trace Elem Res, 2016 Mar, Volume 170, Issue 1, p.106-14, (2016)

Effects of Molybdenum or/and Cadmium on mRNA Expression Levels of Inflammatory Cytokines and HSPs in Duck Spleens., Cao, Huabin, Zhang Mengmeng, Xia Bing, Xiong Jin, Zong Yibo, Hu Guoliang, and Zhang Caiying , Biol Trace Elem Res, 2016 Mar, Volume 170, Issue 1, p.237-44, (2016)

The molybdenum cofactor biosynthesis complex interacts with actin filaments via molybdenum insertase Cnx1 as anchor protein in Arabidopsis thaliana., Kaufholdt, David, Baillie Christin-Kirsty, Bikker Rolf, Burkart Valentin, Dudek Christian-Alexander, von Pein Linn, Rothkegel Martin, Mendel Ralf R., and Hänsch Robert , Plant Sci, 2016 Mar, Volume 244, p.8-18, (2016)

Multiplicity of Sulfate and Molybdate Transporters and Their Role in Nitrogen Fixation in Rhizobium leguminosarum bv. viciae Rlv3841., Cheng, Guojun, Karunakaran Ramakrishnan, East Alison K., and Poole Philip S. , Mol Plant Microbe Interact, 2016 Jan 26, p.MPMI09150215R, (2016)

Separation of [(99m)Tc]pertechnetate and molybdate using polyethylene glycol coated C18 and C30 resins., Andersson, J D., Wilson J S., Romaniuk J A., McEwan A J. B., Abrams D N., McQuarrie S A., and Gagnon K , Appl Radiat Isot, 2016 Jan 19, Volume 110, p.193-199, (2016)

Molecular Epoxidation Reactions Catalyzed by Rhenium, Molybdenum, and Iron Complexes., Kück, Jens W., Reich Robert M., and Kühn Fritz E. , Chem Rec, 2016 Jan 18, (2016)