• N-Phenylmaleimide CAS 941-69-5

N-Phenylmaleimide CAS 941-69-5

N-Phenylmaleimide (PMI) is supplied as a functional maleimide-based intermediate, widely used in polymer chemistry where reactive double bonds and imide structures are required. It is commonly incorporated into resin systems and polymer backbones to improve thermal stability, rigidity, and chemical resistance.

Typical applications include high-performance resins, copolymerization systems, and modification of engineering plastics such as ABS and other thermoplastic materials. It is generally supplied as a crystalline solid suitable for melting, dissolution, or direct reaction in polymer processing. Standard export packaging, bulk supply, and documentation such as COA, TDS, and SDS are available to support industrial use.

  • CAS: 941-69-5
  • Synonyms: N-Phenylmaleimide; PMI; 1-Phenyl-1H-pyrrole-2,5-dione
  • Einecs: 213-382-0
  • Molecular Formula: C10H7NO2
  • Grade: Industrial / polymer-grade intermediate
  • Package: Available in standard moisture-protected packaging for solid materials
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Product Description

Physicochemical Properties

ItemTypical Value
AppearanceWhite to light yellow crystalline solid
OdorSlight characteristic odor
Molecular Weight173.17 g/mol
Melting PointApprox. 89–92°C
SolubilitySoluble in organic solvents; limited solubility in water
ReactivityContains reactive double bond suitable for polymerization and copolymerization
Thermal StabilityGood thermal stability in polymer systems

Typical Applications

  • Comonomer in high-performance polymer systems to enhance heat resistance
  • Modification of engineering plastics such as ABS and related thermoplastics
  • Component in thermosetting resins and specialty coatings
  • Intermediate in functional materials requiring maleimide reactivity

Packaging

N-Phenylmaleimide is typically supplied as a solid packed in moisture-resistant bags or fiber drums with inner liners. Packaging is designed to protect the material from moisture and contamination while maintaining stability during storage and transportation. Packaging formats can be arranged according to order volume and handling requirements.

Storage

Store in a cool, dry, and well-ventilated area. Keep containers tightly sealed and protected from moisture and excessive heat. Avoid prolonged exposure to light and elevated temperatures to maintain product stability and reactivity.

FAQ

Are technical documents available?
Yes, COA, TDS, and SDS can be provided for industrial procurement and technical support.

What type of product is N-Phenylmaleimide?
It is a reactive maleimide intermediate used in polymer and resin systems.

What is its main function in polymers?
It is used to improve thermal stability, rigidity, and chemical resistance through copolymerization or modification.

In what form is it supplied?
It is supplied as a crystalline solid suitable for melting or dissolution in processing systems.

What industries use PMI?
It is used in polymer manufacturing, engineering plastics modification, and specialty resin production.

How is it packaged?
Typically in moisture-protected bags or drums for solid chemical handling.

FAQ - Technical & Supply Chain

Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

  • COA for batch-based quality reference
  • TDS for key physical and chemical information
  • SDS / MSDS for handling, storage, and safety reference
  • Packing information for sample, trial, and bulk orders
  • Technical communication based on application and specification requirements
Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

  • Product name and CAS number
  • Application or intended end use
  • Required purity, grade, or specification
  • Sample quantity, trial order, or bulk demand
  • Preferred packing form or net weight
  • Destination country or port
  • Required documents or compliance expectations
Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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