Bis(isopropylcyclopentadienyl)tungsten(IV) dihydride 

Synonym: WH2(iPrCp)2, Bis(i-propylcyclopentadienyl)tungstendihydride

CAS Number 64561-25-7 | MDL Number MFCD04126431 | EC Number 613-623-3

Bis(isopropylcyclopentadienyl)tungsten(IV)dihydride Chemical Structure

Product codeW1257
CAS number64561-25-7
Assay (purity)98%+
Purity methodby integration NMR H1
Molecular weight400.22
NMRconforms to structure
Appearancedark orange liquid
Boiling point122 – 125 °C (251 – 257 °F)
Flash point93.3 °C
Molecular formulaC16H24W
Linear formula(C3H7C5H4)2WH2
Packagingglassware/metal containers/bubblers

Bis(isopropylcyclopentadienyl)tungsten(IV) dihydride is a precursor used for atomic layer deposition by the semiconductor and related industries. It is also used in applications needing non-aqueous solubility. For example, for thin film deposition for modern water treatment equipment and solar PV panels. Recent research of this product has been reported (see the 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 Bis(isopropylcyclopentadienyl)tungsten(IV) dihydride contact us at

Safety information

Hazardous classNot a hazardous substance
In TSCA registryNo, Ereztech has a low volume exception

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 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 Bis(isopropylcyclopentadienyl)tungsten(IV) dihydride below please contact customer support at

Lot# 010/367 Lot# 010/368-1 Lot# 010/372 Lot# 010/373 Lot# 010/374 Lot# 010/375 Lot# 010/376 Lot# 010/377 Lot# 010/378 Lot# 010/381 Lot# 010/383

External identifiers for Bis(isopropylcyclopentadienyl)tungsten

Pubchem CID71317461
IUPAC Name2-propan-2-ylcyclopenta-1,3-diene;tungsten dihydride
InchI IdentifierInChI=1S/2C8H11.W.2H/c2*1-7(2)8-5-3-4-6-8;;;/h2*3,5,7H,4H2,1-2H3;;;/q2*-1;;;

Known applications and external links

With Bis(isopropylcyclopentadienyl)tungsten(IV) dihydride other customers often ask:

Ereztech synthesizes and sells additional W-compounds.

To purchase Bis(isopropylcyclopentadienyl)tungsten(IV)dihydride contact us at