Manganese(II) acetate tetrahydrate
Manganese(II) acetate tetrahydrate (CAS: 6156-78-1) is a pink crystalline solid with the molecular formula (CH₃COO)₂Mn · 4H₂O and a molecular weight of 245.09 g/mol. It belongs to the family of manganese salts and is commonly employed as a catalyst in organic synthesis, particularly in oxidation reactions. Its reliable performance makes it a staple in research laboratories and industrial chemical processes requiring a source of manganese ions.
- IUPAC
- Manganous acetate
- Synonyms
- Manganous acetateAcetic acid, manganese(2+) salt, tetrahydrate

Catalysis in Organic Synthesis
Utilised as a catalyst in various oxidation reactions, facilitating transformations in organic chemistry. It is particularly effective in promoting reactions such as the aerobic oxidation of hydrocarbons.
Laboratory Reagent
A standard reagent in chemical research for studies involving manganese chemistry and as a precursor in the synthesis of other manganese compounds.
Precursor for Manganese Compounds
Serves as a starting material for the preparation of diverse manganese-based materials and coordination complexes.
| Molecular weight | 245.09 |
|---|---|
| Linear formula | (CH3COO)2Mn · 4H2O |
| Assay | ≥99% |
| Grade | purum p.a. |
| Density | 1.589 g/mL at 25 °C(lit.) |
| Melting point | >300 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality Level | PREMIUM |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Manganese(II) acetate tetrahydrate used for?
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Manganese(II) acetate tetrahydrate is primarily used as a catalyst in organic synthesis, particularly for oxidation reactions, and as a reagent in chemical research and the preparation of other manganese compounds.
What are the CAS number and formula for Manganese(II) acetate tetrahydrate?
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The CAS number is 6156-78-1 and the linear formula is (CH₃COO)₂Mn · 4H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Manganese(II) acetate tetrahydrate with a purity of ≥99%, conforming to the Purum p.a. grade. We do not represent this product as USP, BP, or EP.
How should Manganese(II) acetate tetrahydrate be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves. Avoid inhalation of dust and contact with eyes and skin, as it can cause irritation (H315, H319, H335).
How is Manganese(II) acetate tetrahydrate packed and shipped?
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Manganese(II) acetate tetrahydrate is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team through the website or by phone, providing the product name and CAS number (6156-78-1).
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