Synonym: Copper bis(2,2,6,6-tetramethyl-3,5-heptanedionate), Bis(2,2,6,6-tetramethylheptane-3,5-dionato)copper, Cu(TMHD)2

CAS Number 14040-05-2 | MDL Number MFCD00058920 | EC Number 626-948-0

Cu(TMHD)2 Chemical Structure

Product codeCU0052
CAS number14040-05-2
Assay (purity)99%+
Purity methodby titration: 14.6 – 14.9% Cu (complexometric)
Molecular weight430.08 g/mol
Appearancedark violet crystalline powder or powder
Melting point198 °C (388 °F)
Boiling point100 °C (212 °F) @ 0.1 mm Hg – sublimation
Molecular formulaCuC22H38O4
Linear formulaCu[OCC(CH3)3CHCOC(CH3)3]2
Packagingglassware/metal containers/bubblers

Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) has been investigated for applicability to plasma-enhanced atomic layer deposition at low temperatures. 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 Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) contact us at

Safety information

UNNot regulated
Hazardous classNot regulated
Packing groupNot regulated
Signal wordWARNING
Hazard statementsH315-H319-H335
Precautionary statementsP261-P264-P271-P280
In TSCA registryNo (sold for research and development usage only)

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 Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) below please contact customer support at

Lot# 021/179 Lot# 007/1002 Lot# 019/306 Lot# 031/051

External identifiers for Cu(TMHD)2

Pubchem CID14534779
IUPAC Namecopper; (Z)-2,2,6,6-tetramethyl-5-oxohept-3-en-3-olate
InchI IdentifierInChI=1S/2C11H20O2.Cu/c2*1-10(2,3)8(12)7-9(13)11(4,5)6;/h2*7,12H,1-6H3;/q;;+2/p-2/b2*8-7-;

Known applications and external links

With Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) other customers often ask:

Ereztech synthesizes and sells additional CU-compounds.

To purchase Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) contact us at