Dissolves difficult polymers
Polyacrylonitrile, spandex polymers, polyimide precursors, PVDF and polysulfones go into solution for spinning, casting and coating.
DMAC
N,N-Dimethylacetamide (DMAC) Supplier from China
N,N-Dimethylacetamide (DMAC) is a high-boiling polar aprotic solvent used to spin acrylic and spandex fibers, cast polyimide films and PVDF membranes, and as a reaction solvent in pharmaceutical and agrochemical synthesis. SUNCHEM supplies DMAC in drums or ISO tanks with a batch COA on every shipment.
CAS 127-19-5 · C₄H₉NO · N,N-Dimethylacetamide
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
DMAC dissolves polymers that few other solvents can — polyacrylonitrile, polyurethane-urea, polyimide precursors, PVDF and polysulfones — and it is stable to strong bases, which makes it a reaction solvent for pharmaceuticals such as antibiotics and for agrochemicals. Its main volume uses are fiber spinning, film casting, membrane making and wire enamels.
DMAC is classified as toxic for reproduction and is listed as a substance of very high concern in the EU, where its industrial use is restricted to set exposure limits. Tell us your market so we provide the documents you need.
Stable reaction medium
High boiling point and stability to bases suit pharmaceutical and agrochemical reactions.
Specified on your terms
We quote against your purity, water and amine limits and send the batch COA for each lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | N,N-Dimethylacetamide |
| Synonyms | DMAC; DMA; acetic acid dimethylamide |
| CAS No. | 127-19-5 |
| EC No. | 204-826-4 |
| Molecular formula | C₄H₉NO |
| Molecular weight | 87.12 |
| Appearance | Colorless liquid |
| Packing | Drums or ISO tank |
Purity, water, acetic acid, dimethylamine and color limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Industry
Where DMAC is used, and what to confirm before you switch supply.
Acrylic & spandex fiber spinning
The spinning solvent for acrylic fiber and for spandex (polyurethane-urea) fiber, recovered and recycled in the plant.
Check before trial
- Fiber type and recovery system
- Water and amine limits
- Monthly ISO-tank volume
Polyimide films, PVDF and PES membranes
Dissolves polyamic acid for polyimide film and wire enamel, and PVDF, PES or PSF for ultrafiltration and battery-separator coatings.
Check before trial
- Polymer and process
- Purity and metal ions
- Packaging
Pharmaceutical and agrochemical synthesis
A reaction and crystallization solvent in antibiotic, API and agrochemical synthesis.
Check before trial
- Synthesis step
- Impurity limits your QA needs
- Documents required
Selection & comparison
Choosing the right DMAC grade
| Your requirement | What usually works |
|---|---|
| Fiber spinning (acrylic, spandex) | Industrial-grade DMAC in ISO tank or drums; agree water and amine limits |
| Polyimide film, membranes, electronics | Specify purity, water and metal ions |
| Pharmaceutical synthesis | Specify purity and impurity limits your QA approves |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
Drums or ISO tank. Tell us which you need and your unloading set-up.
Storage
Keep containers closed in a cool, ventilated store; DMAC is hygroscopic and readily absorbed through skin — follow the SDS for protective equipment.
From first email to approved supply
Name the end use
Fiber, film, membrane or synthesis: water, amine and metal limits follow from it.
Compare the numbers that matter
Purity, water, acetic acid, dimethylamine and color — the same parameters as your incoming-inspection sheet.
Plan exposure control
Confirm closed handling and exposure limits for your market before the first delivery.
Trial, then lock the spec
Run a sample in your own process and keep the approved lot COA as the reference for contract limits.
Tell us your requirement. We match the grade.
Tell us the process you use DMAC in, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | Fiber spinning, film, membrane, synthesis |
| Required specification | Purity, water, amine, color |
| Packaging | Drums or ISO tank |
| Quantity | Sample / trial order / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS, REACH statement |
Related products
N,N-Dimethylacetamide (DMAC) FAQ
What is DMAC used for?
Mainly as a spinning solvent for acrylic and spandex fibers, a solvent for polyimide films, wire enamels and PVDF or PES membranes, and a reaction solvent in pharmaceutical and agrochemical synthesis.
Which parameters should I compare between offers?
Purity, water, acetic acid, dimethylamine and color; for electronics, also metal ions.
How is DMAC packed?
In drums or ISO tanks.
Is DMAC restricted?
In the EU it is classified as toxic for reproduction, listed as an SVHC, and subject to exposure-limit restrictions for industrial use. Check the rules in your market.
