Chromium(III) acetylacetonate
ALDRICH/202231 - 97%
Synonym: Chromium(III) 2,4-pentanedionate; Cr(acac)3
CAS Number: 21679-31-2
Empirical Formula (Hill Notation): C15H21CrO6
Molecular Weight: 349.32
EC Number: 244-526-0
MDL Number: MFCD00000015
Linear Formula: Cr(C5H7O2)3
Product Type: Chemical
| assay | 97% |
| bp | 340 °C (lit.) |
| form | solid |
| InChI | 1S/3C5H8O2.Cr/c3*1-4(6)3- |
| InChI key | JWORPXLMBPOPPU-LNTINUHCSA |
| mp | 210 °C (lit.) |
| Quality Level | 200 ![]() |
| reaction suitability | core: chromium |
| SMILES string | CC(=O)C=C(C)O[Cr](OC(C |
| Analysis Note: | Used to modify the surface properties of solid polyurethanes formed in its presence. |
| Application: | Chromium(III) acetylacetonate can be used as: • A precursor for the synthesis of chromium oxide (Cr₂O₃) nanoparticles, which are utilized in magnetic, catalytic, and electrochemical devices • A molecular precursor in chemical vapor deposition (CVD) and sol-gel processes to fabricate chromium-containing thin films for electrochromic and energy storage applications • A catalyst or catalyst precursor in selective oxidation and polymerization reactions, enabling efficient and sustainable organic transformations |
| General description: | Chromium(III) acetylacetonate (Cr(acac)₃) is a high-purity (≥97%) coordination complex that appears as a purple to very dark purple powder or in chunk form. It is a stable, air-insensitive compound, soluble in non-polar organic solvents. Its high thermal stability and well-defined molecular structure make it an excellent precursor for synthesizing advanced materials. Cr(acac)₃ is especially valued for applications in catalysis, thin film deposition, and as a molecular probe in spectroscopic studies. |
| Packaging: | 5, 100 g in poly bottle |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 22-26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 97% |
| bp | 340 °C (lit.) |
| mp | 210 °C (lit.) |
| UNSPSC | 12352103 |

