Molybdenum(VI) tetrachloride oxide

Synonym: Molybdenum chloride oxide, Molybdenum oxide chloride, Molybdenum oxytetrachloride, Molybdenum tetrachloride monoxide, Molybdenum(VI) oxychloride, Tetrachlorooxomolybdenum

CAS Number 13814-75-0 | MDL Number MFCD00014222  | EC Number 628-149-2

Product codeMO4750
CAS number13814-75-0
Assay (purity)99%
Purity methodby titration: %Мо=37.41
Molecular weight253.75 g/mol
Appearancegreen powder
Melting point100-101°C (212-213.8°F)
Storage temperature2-5°C
Molecular formulaMoOCl4
Linear formulaMoOCl4
Packagingglassware/metal containers/bubblers

Molybdenum(VI) tetrachloride oxideis used as a basis for a novel, binary catalyst for the living polymerization of substituted acetylenes. The synthesis of this product is described in the literature. See links below

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing MO4750 contact us at

Safety information

Hazardous class8
Packing groupII
Signal wordDANGER
Hazard statementsH314-H318
Precautionary statementsP260-P264-P280-P301 + P330 + P331-P303 + P361 + P353-P304 + P340-P305 + P351 + P338-P310
Transport descriptionCorrosive solid, acidic, inorganic, n.o.s. (Molybdenum(VI) tetrachloride oxide)
In TSCA registryYes

First Aid Measures

General adviceConsult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area.
Eye contactRinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Skin contactWash off with soap and plenty of water. Consult a physician.
InhalationIf breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician.
If swallowedDo NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.


Certificates of Analysis (CoA)

If you don’t see the needed lot of Molybdenum(VI) tetrachloride oxide below please contact customer support at

Lot# 134/R/1/MoPX/1218 Lot# 134/R/1.5/0620

External identifiers for Tetrachlorooxomolybdenum

Pubchem CID29320
IUPAC Nametetrachlorido-oxido-molybdenum
InchI IdentifierInChI=1S/4ClH.Mo.O/h4*1H;;/q;;;;+4;/p-4

Known applications and external links

With Molybdenum(VI) tetrachloride oxide other customers often ask:

Ereztech synthesizes and sells additional MO-compounds.

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