n-dimethylacetamide
- EASTCHEM
- China
- 15~20 days
- ≥99.9
- 127-19-5
N,N-Dimethylacetamide is a highly polar aprotic solvent,it is widely used as a solvent and a catalyst. The solvent, with high boiling point, flash point, thermal stability and chemical stability of the solvent, is used for polyacrylonitrile spinning solvent, synthetic resin and natural resins, formic acid vinyl ester resin, vinyl pyridine copolymer and aromatic carboxylic acid.

Product introduction
N,N- dimethylacetamide(DMAc or DMA) is the organic compound with the formula CH3C(O)N(CH3)2. This colorless, water-miscible, high-boiling liquid is commonly used as a polar solvent in organic synthesis. DMA is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbons.
Product specification
Product Name | Dimethyl Acetamide |
Other Name | |
CAS No | 127-19-5 |
EINECS No | 204-826-4 |
Molecular Formula | C4H9NO |
Molecular Weight | 87.12 g·mol-1 |
Flash Point | 63 °C (145 °F) |
Purity (%) | ≥99.9 |
Moisture (%) | ≤0.02 |
Amines ppm | ≤50 |
Appearance | Colorless and clear liquid |
Storage | Store in a tightly closed container. |
Product application
1. It is used as a raw material for synthetic fibers and an excellent polar solvent for organic synthesis; for organic synthesis, it is also used as a solvent, catalyst and paint remover.
2. DMAC is mainly used as a solvent for synthetic fibers (acrylonitrile) and polyurethane spinning and synthetic polyamide resins, and is also used as an extractive distillation solvent for separating styrene from C8 fractions, and is widely used in polymer films; coatings and pharmaceuticals etc. At present, it is widely used in medicine and pesticide to synthesize antibiotics and pesticides.
3. Can be used as catalyst for reaction; electrolytic solvent; paint scavenger and various crystalline solvent adducts and complexes.
4. Used as solvent, paint remover, catalyst and for organic synthesis.

Dimethylacetamide for Pharmaceutical Applications
Dimethylacetamide (DMAC), also known as N,N-Dimethylacetamide, is a high-performance polar aprotic solvent widely used in pharmaceutical synthesis and related chemical manufacturing. With strong solvency, good water miscibility and a high boiling point, DMAC can help dissolve difficult-to-handle raw materials and intermediates and provide a stable reaction environment.
For pharmaceutical manufacturers, DMAC solvent is mainly valuable when conventional solvents do not provide enough solubility or process stability. It can be used as a reaction solvent, processing solvent and, in specific pharmaceutical formulations, a co-solvent or vehicle.
DMAC in Pharmaceutical Synthesis
In drug manufacturing, many synthesis steps involve organic compounds with limited solubility. DMAC has strong dissolving power for a wide range of organic and inorganic substances, allowing raw materials, intermediates and reaction components to be mixed more uniformly.
Its polar aprotic nature is particularly useful in organic synthesis. Depending on the reaction system, DMAC can provide a suitable medium for reactions involving pharmaceutical intermediates and help maintain consistent reaction conditions.
For manufacturers, this means DMAC can be considered when the process requires:
Better dissolution of pharmaceutical intermediates
A stable high-boiling reaction solvent
Good compatibility with water and organic solvents
Consistent solvent performance during scale-up
A solvent suitable for demanding synthesis conditions
DMAC for Antibiotic Manufacturing
One established pharmaceutical application of Dimethylacetamide (DMAC) is in the manufacturing of cephalosporin antibiotics.
Cephalosporin production involves important intermediates such as 7-ADCA (7-aminodeacetoxycephalosporanic acid) and its derivatives. DMAC can be used as a solvent in related manufacturing processes, helping provide the required reaction environment for intermediate processing.
This makes DMAC relevant to pharmaceutical companies involved in:
Cephalosporin intermediates
β-lactam antibiotic manufacturing
Pharmaceutical intermediate production
Process development and scale-up
DMAC for X-Ray Contrast Media
DMAC is also used as a solvent in the production of certain X-ray contrast media.
The synthesis of contrast agents can involve compounds with demanding solubility and processing requirements. DMAC's strong solvency and high boiling point make it useful in selected synthesis and processing steps.
For manufacturers working with contrast-media intermediates, solvent purity and batch-to-batch consistency are important because impurities in the solvent can affect downstream processing and purification.
DMAC as a Co-Solvent in Pharmaceutical Formulation
Beyond chemical synthesis, DMAC has also been used as a co-solvent or vehicle in pharmaceutical formulations, particularly for compounds with poor water solubility.
Its strong polarity allows it to dissolve certain poorly soluble active pharmaceutical ingredients (APIs) or formulation components that are difficult to handle in water alone. Pharmaceutical literature and commercial pharmaceutical-solvent suppliers describe its use in oral and injectable formulation systems and as a vehicle for certain drug-delivery applications.
However, formulation use is highly dependent on the specific drug, dosage form, regulatory requirements and permitted residual-solvent limits. Therefore, the appropriate DMAC grade should always be selected according to the customer's final pharmaceutical process.
Why DMAC Works Well in Pharmaceutical Processes
The value of DMAC solvent comes down to several practical characteristics.
Strong solvency:
DMAC can dissolve a broad range of organic compounds, making it useful when pharmaceutical intermediates have limited solubility.
High boiling point:
With a boiling point around 165–166°C, DMAC can remain stable during many elevated-temperature processes and can be removed through controlled solvent recovery.
Water miscibility:
DMAC is completely miscible with water and compatible with many common organic solvents, providing flexibility when developing extraction, reaction or purification processes.
Stable process performance:
Its thermal and chemical stability makes DMAC suitable for continuous and multi-step manufacturing processes.
EastChem DMAC for Pharmaceutical Customers
EastChem supplies Dimethylacetamide (DMAC), CAS 127-19-5, with a standard purity of ≥99.9%. The product is supplied as a clear, colorless liquid and is supported by routine quality documentation such as COA and relevant product documents.
For pharmaceutical and fine-chemical customers, EastChem can support different purchasing requirements, including:
Bulk DMAC supply
Sample evaluation before regular orders
COA and product documentation
Export packaging and international logistics
Stable supply for continuous production
Technical communication for application requirements
If you are developing a pharmaceutical intermediate process and need a reliable DMAC solvent, you can send the target application, required purity, estimated quantity and destination market to EastChem. The team can then recommend a suitable specification and supply option.
packing

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