N-Isopropylacrylamide
N-Isopropylacrylamide (CAS 2210-25-5) is a chemical monomer with the linear formula H₂C=CHCONHCH(CH₃)₂ and a molecular weight of 113.16 g/mol. It is primarily used in the synthesis of poly(N-isopropylacrylamide) (pNIPA), a thermosensitive polymer known for forming hydrogels. These polymers exhibit a notable phase transition, shrinking significantly at temperatures above 33°C, making them valuable in various material science applications.
- IUPAC
- NIPAM
- Synonyms
- NIPAM

Thermosensitive Hydrogel Synthesis
N-Isopropylacrylamide serves as a key monomer for producing poly(N-isopropylacrylamide) (pNIPA) based hydrogels. These hydrogels exhibit a sharp volume phase transition in response to temperature changes.
Smart Polymer Development
The polymerisation of N-Isopropylacrylamide yields polymers that undergo dramatic shrinkage above a critical temperature, approximately 33°C. This characteristic is exploited in the design of 'smart' materials.
Materials Science Research
As a versatile monomer, N-Isopropylacrylamide is instrumental in advanced materials research, particularly in the field of stimuli-responsive polymers and their integration into novel devices and systems.
| Molecular weight | 113.16 |
|---|---|
| Linear formula | H2C=CHCONHCH(CH3)2 |
| Assay | 97% |
| Boiling point | 89-92 °C/2 mmHg(lit.) |
| Application | N-Isopropylacrylamide is used to produce poly(N-isopropylacrylamide) (pNIPA, pNIPAAm, pNIPAA or pNIPAm) thermosensitive polymer- or copolymer-based hydrogels. Polymers that contain NIPAM shrink dramatically above 33 °C. |
| Melting point | 60-63 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 N-Isopropylacrylamide used for?
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N-Isopropylacrylamide is used to produce poly(N-isopropylacrylamide) (pNIPA) thermosensitive polymer-based hydrogels. These polymers shrink significantly above 33°C, finding applications in smart materials and advanced polymer science.
What are the CAS number and formula for N-Isopropylacrylamide?
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The CAS number for N-Isopropylacrylamide is 2210-25-5, and its linear formula is H₂C=CHCONHCH(CH₃)₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N-Isopropylacrylamide with an assay of 97%. This product is supplied for research and development purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should N-Isopropylacrylamide be handled safely?
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N-Isopropylacrylamide is classified with Warning signal word, with hazards H302 (Harmful if swallowed) and H319 (Causes serious eye irritation). Recommended personal protective equipment includes a dust mask (N95), eyeshields, faceshields, and gloves. Handle in a well-ventilated area.
How is N-Isopropylacrylamide packed and shipped?
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N-Isopropylacrylamide is carefully packaged to ensure safe transit and is available for global export. Specific packaging details can be provided upon request.
How can I request a sample or quote for N-Isopropylacrylamide?
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To request a sample or a quote for N-Isopropylacrylamide, please contact our sales team through the website or by phone, providing your specific requirements.
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