N-Methylmaleimide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 930-88-1 |
| Product name | N-Methylmaleimide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeElectronic Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for N-Methylmaleimide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N-Methylmaleimide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N-Methylmaleimide
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for drug synthesis | Used as a Michael acceptor to construct nitrogen-containing heterocyclic compounds |
| Polymers & Materials | Monomer modifier for polymerization | Copolymerized with styrene, acrylates, and similar monomers to enhance thermal stability and mechanical properties of the resulting polymers |
| Biotechnology | Protein crosslinking and modification | Selectively modifies thiol (–SH) groups in proteins to enable site-specific conjugation or labeling |
| Coatings | Component of high-temperature-resistant resins | Participates in the synthesis of polyimide or epoxy resin systems with superior heat resistance |
| Electronic Materials | Additive for encapsulation materials | Improves adhesion and thermal stability of electronic encapsulation resins |
Manufacturing Quality Control of N-Methylmaleimide
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies N-methylmaleimide by separation on a capillary column and flame ionization detection relative to a certified reference standard. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Determines trace water via electrochemical iodine generation and stoichiometric reaction with water in anhydrous methanol-based solvent. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measures non-volatile inorganic impurities by ashing at 700–800 °C and weighing the residual inorganic residue. |
| Heavy Metals (as Pb) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Quantifies total heavy metals (e.g., Pb, Cd, Hg, As) after acid digestion by atomic emission at element-specific wavelengths. |
| Acid Value | Acid-Base Titration (with NaOH in toluene–isopropanol mixture) | Measures free carboxylic acid impurities via neutralization with standardized sodium hydroxide using phenolphthalein or potentiometric endpoint detection. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement (430 nm) | Evaluates yellowness intensity by matching sample absorbance at 430 nm to APHA platinum-cobalt standard scale. |
| Melting Point | Capillary Melting Point Apparatus | Determines solid–liquid phase transition temperature range using controlled heating and optical observation of meniscus collapse. |
| Residual Solvents (e.g., Toluene, Acetone) | Headspace Gas Chromatography (HS-GC) with FID | Quantifies volatile organic solvents by equilibrium headspace sampling followed by GC separation and FID detection. |
| Related Substances (Impurity Profile) | High-Performance Liquid Chromatography (HPLC) with UV detection | Separates and quantifies structurally related impurities (e.g., maleimide, N-methylmaleamic acid) using reversed-phase C18 column and UV absorbance at 210–230 nm. |
Technical Specifications of N-Methylmaleimide
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 76–79°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of N-Methylmaleimide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of N-Methylmaleimide
Packaging of N-Methylmaleimide
Industrial N-Methylmaleimide Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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