Zhejiang Realsun Chemical Co., Ltd. is one of the most reliable manufacturers and suppliers of n,n-dimethylpropionamide in China. If you're going to buy high quality n,n-dimethylpropionamide, welcome to get pricelist and free sample from our factory. Good service and low price are available.
Basic Product Info
• Chemical Name：N,N-Dimethylpropionamide
• CAS No.：758-96-3
• Abbreviation: DMPA
• Molecular Formula：C5H11NO
• Molecular Weight：101.15
• Appearance：Colorless transparent liquid with slight pungent odor
• Available Grade：Industrial Grade (only mass-produced grade)
• Standard Purity：≥99.5%
• Density (25℃)：0.92 g/cm³
• Boiling Point：174–175℃
• Flash Point：62℃
• Core Feature：High-polarity aprotic amide solvent, key component for semiconductor photoresist stripper, also used for polymer synthesis & chemical reaction medium. Suitable for industrial applications regulated under EU standards.
Technical Parameters
|
Test Item |
Industrial Grade (Standard Mass Production) |
|
Main Purity |
≥99.5 wt% |
|
Water Content |
≤0.1 wt% |
|
Color APHA |
≤20 |
|
Appearance |
Colorless liquid |
|
Density 25℃ |
0.92 g/cm³ |
|
Boiling Range |
174–175℃ |
|
Flash Point |
62℃ |
|
Sealed Shelf Life |
12 months |
Parameter Advantage Explanation
1. High polarity enables strong dissolving capacity for photoresist resin, clean stripping without residual glue
2. Stable property under high temperature, low volatilization loss during polymer polymerization
3. Miscible with water and most organic solvents, wide compatibility for different formula systems
4. Strict water & color control, no adverse impact on product appearance and reaction yield
Product Position & Grade Distinction
1) Grade Introduction
RealSun Chem self-produces DMPA with independent continuous rectification workshop. Only industrial grade is available for mass production, with unified standard purity ≥99.5%. There is no mass-produced electronic grade or pharmaceutical injection grade; custom ultra-high purity lab samples are only available for small batch orders, not for long-term bulk supply.
The product adopts closed-loop synthesis + multi-stage rectification process, with strict control of moisture, residual amine and trace impurities, mainly serving semiconductor photoresist stripping, special polymer synthesis and fine chemical production scenarios.
2) Covered Downstream Industries
1. Semiconductor & Electronic Industry: Key component of photoresist stripping solution
2. Polymer Industry: Reaction solvent for high-performance resin synthesis
3. Fine Chemical Industry: Organic synthesis reaction medium & intermediate
4. Special Coating & Ink: High-performance resin system solvent
3) Stable Supply Guarantee
RealSun is equipped with dedicated DMPA continuous synthesis and rectification production line, with upstream raw materials self-matched inside the factory, no need to purchase crude products from outside, which is not affected by external raw material price increase and supply shortage. Independent cool storage tanks are set up in the plant area, with long-term reserved safety stock. We support 1–3 years annual price-locked framework contracts, with priority scheduling during peak demand seasons, and no long-term out-of-stock record for many years.
Overseas Buyers Core Pain Points Solved
1. Ordinary amide solvents have poor photoresist stripping effect, leaving residual glue on wafer surface → DMPA high polarity ensures clean stripping
2. Traders' sources have large batch fluctuations in purity and color, affecting product yield → Factory direct supply with stable batch indicators
3. Traditional high-toxic amide solvents are strictly regulated by EU, with high customs clearance risk → DMPA fully compliant with EU industrial regulations
4. Raw material market fluctuates greatly, with frequent price increases in peak seasons → Vertical integrated production, supporting long-term price locking
Industrial Application & Real Customer Cases
Semiconductor Photoresist Stripping
Application: Key raw material of photoresist stripping solution, used for removing positive/negative photoresist on wafer and PCB substrate
Pain Point: Low-purity solvents leave residual glue and ion contamination on wafer surface, leading to low product yield
Real Case: A domestic semiconductor packaging factory used our DMPA to formulate stripping solution, photoresist residual rate decreased from 4.2% to below 0.8%, and surface ion residue met process requirements.
01
Special Polymer Synthesis
Application: Reaction solvent for polyimide, engineering plastics and other high-performance polymer polymerization
Pain Point: Low boiling point solvents volatilize seriously during high-temperature polymerization, resulting in pinhole defects on resin film
Real Case: A domestic polyimide manufacturer adopted DMPA as polymerization solvent, workshop solvent loss reduced by 28%, and resin film forming uniformity was significantly improved.
02
Fine Chemical Synthesis
Application: High-polarity reaction medium for pharmaceutical and agrochemical intermediate synthesis, promoting condensation and cyclization reactions
Pain Point: Single ester/ketone solvent has insufficient polarity, low reaction conversion rate
DMPA high polarity improves reaction efficiency and product yield.
03
Special Coating & Ink
Application: Solvent for high-performance resin systems, improving resin solubility and coating leveling.
04
Production Capacity & Warehouse Stock
1. Production Line Scale: Dedicated continuous synthesis and rectification workshop for DMPA, fully automatic non-stop operation throughout the year, upstream raw materials are self-supplied in the group industrial chain, no outsourcing of crude products.
2. Inventory Management: Independent cool and ventilated storage tank area, stored in strict accordance with storage specifications, long-term reserved spot safety stock.
3. Long-term Contract Support: Sign 1–3 years price-locked framework agreement with written delivery delay compensation clause.
4. QC Traceability System: Three full GC inspections from raw material feeding → intermediate rectification → finished product filling, DCS automatic monitoring, 12 consecutive months of complete batch inspection records available for supplier qualification audit.
5. Delivery Lead Time: Domestic spot goods can be delivered within 3 working days; export full container can complete dangerous goods declaration and customs clearance within 7–10 working days, shipped from Zhejiang Linhai port to Europe, America, Southeast Asia, Japan and South Korea.
Packaging Specification & Sea Logistics Details
Standard Export Packaging
1. Lab Sample: 25kg HDPE plastic drum with double PE inner sealing liner
2. Regular Bulk Shipment: 190kg net weight anti-corrosion plastic drum (factory standard packaging)
3. Medium & Large Batch: 950kg IBC sealed tank (customizable)
Full Logistics Guarantee
1. Package Protection: Double-sealed barrel body with moisture-proof structure, 45-day ocean shipping will not cause obvious changes in purity and moisture indicators; barrels must be kept upright during transportation to prevent leakage.
2. Dangerous Goods Declaration: Professional internal DG team handles all maritime filing and export declaration one-stop.
3. Multi-transport Channel: Sea FCL/LCL, air sample delivery, with full dangerous goods cargo insurance covered.
4. Storage & Transportation Specification: Store in cool, dry and well-ventilated place; containers must be tightly sealed; opened containers must be carefully re-sealed and kept upright to prevent leakage. Sealed shelf life is 12 months.
Safety Operation Warning (GHS Standard)
Hazard Reminder
• Irritating to eyes, skin and respiratory tract; avoid direct contact and inhalation of vapor
• Flammable liquid, keep away from open fire and high temperature heat sources
Mandatory PPE During Operation
Chemical resistant gloves, splash-proof safety goggles, operate in a well-ventilated workshop, no open fire in the operation area
Emergency Handling
1. Skin contact: Rinse with plenty of clean water, seek medical attention if irritation persists
2. Eye contact: Rinse with running water for 15 minutes, seek medical attention immediately
3. Spill: Absorb with inert sand, avoid flowing into sewer and water body
4. Fire extinguishing medium: Foam, dry powder, carbon dioxide; water spray is not recommended for direct extinguishing
Waste Disposal: Dispose as hazardous waste in accordance with local environmental protection regulations, direct discharge is prohibited.
Trade & Business Terms (MOQ / Sample / Lead Time)
1. MOQ Minimum Order Quantity
Sample order: 1 barrel 25kg
Mass bulk order: 190kg standard drum, full pallet / 20GP / 40GP full container acceptable
2. Sample Policy
Sample fee is charged with freight collect; sample fee can be deducted from the first formal bulk order. Free technical support for formula adjustment after sample testing.
3. Lead Time
Domestic spot: 3 working days after deposit received
Export full container: 7–10 working days for DG declaration and customs clearance; maximum 15 working days in peak season
4. Payment Term: T/T 30% deposit before production, balance against copy of bill of lading; L/C acceptable for long-term cooperative clients
5. Custom Service: Custom private label drum sticker, small batch custom ultra-high purity samples can be arranged in advance
FAQ
Do you have electronic grade or semiconductor grade DMPA for bulk supply?
+
-
We only mass-produce 99.5% industrial grade DMPA, there is no large-scale production line for dedicated electronic grade. Ultra-high purity samples for laboratory use can only be customized in small quantities, which cannot be supplied stably in large batches. For conventional photoresist stripping, polymer synthesis and fine chemical production, our industrial grade can fully meet the process requirements.
Can DMPA be used directly to prepare photoresist stripping solution?
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Yes, DMPA is a key component of photoresist stripping solution, with strong dissolving capacity for most positive and negative photoresist resins. We can provide free samples for customers to do formula verification and stripping effect test.
What is the shelf life of DMPA? What should be paid attention to during storage?
+
-
The standard shelf life under sealed condition is 12 months. It should be stored in a cool, dry and well-ventilated place; the container must be tightly sealed; after opening, it must be re-sealed carefully and kept upright to prevent leakage and moisture absorption.
Is third-party re-inspection supported for different batches?
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-
Fully support SGS, Intertek and other third-party institutions for sample testing or on-site inspection. Our automatic continuous rectification process ensures very small batch fluctuation, and the test error conforms to the general international standard for amide solvents.
Quality Control & After-sales Guarantee
1. 100% full GC inspection for each batch before delivery, complete 12-month continuous batch inspection records can be provided for supplier qualification audit.
2. Full batch traceability: Each drum is printed with a unique batch number, which can be traced back to the corresponding production rectification section and full test COA file.
3. Abnormal goods handling mechanism: If the moisture, purity or color index exceeds the standard upon arrival, free replacement and corresponding freight compensation will be provided in accordance with the contract.
4. Permanent technical support: Free consultation on formula adjustment and process matching, and free cooperation with overseas factories for EHS on-site audit.
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