Molekula
1,1'-(Methylenedi-4,1-phenylene)bismaleimide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1,1'-(Methylenedi-4,1-phenylene)bismaleimide is a high-performance chemical used primarily in the synthesis of advanced polymers, adhesives, and composites for aerospace, electronics, and high-temperature applications. This rigid, thermally stable compound enhances mechanical strength and chemical resistance in formulated products. CAS 13676-54-5, molecular formula C21H14N2O4, molecular weight 358.35 g/mol. Store at ambient conditions. Hazard classification: Danger (signal word). Molekula supplies 1,1'-(Methylenedi-4,1-phenylene)bismaleimide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Pale yellow powder |
| Melting Point | 152 - 160 Deg C |
| Identification | Conforms to reference |
| Assay | ≥98% |
| Acid Value (mg KOH/g) | ≤1mg KOH/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 51390082 |
| CAS Number | 13676-54-5 |
| IUPAC Name | 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione |
| EC Number | 237-163-4 |
| Molecular Formula | C21H14N2O4 |
| Molecular Weight | 358.35 |
| Exact Mass | 358.0954 |
| SMILES | C1=CC(=CC=C1CC2=CC=C(C=C2)N3C(=O)C=CC3=O)N4C(=O)C=CC4=O |
| InChIKey | XQUPVDVFXZDTLT-UHFFFAOYSA-N |
| InChI | InChI=1S/C21H14N2O4/c24-18-9-10-19(25)22(18)16-5-1-14(2-6-16)13-15-3-7-17(8-4-15)23-20(26)11-12-21(23)27/h1-12H,13H2 |
| PubChem CID | 83648 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2925.19.4200 |
| Tariff Code | 2925199590 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H330 Fatal if inhaled
- H335 May cause respiratory irritation
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1,1'-(Methylenedi-p-phenylene)bismaleimide
- 1H-Pyrrole-2,5-dione, 1,1'-(methylenedi-4,1-phenylene)bis-
- 4,4'-Bismaleimidodiphenylmethane
- 4,4'-Methylenebis(N-phenylmaleimide)
- Bis(4-maleimidophenyl)methane
- Bismaleimide
- Bismaleimide S
- Diphenylmethanebismaleimide
- p,p'-Dimaleimidodiphenylmethane
- p,p'-Methylenebis(N-phenylmaleimide)
Frequently asked questions
What is 1,1'-(Methylenedi-4,1-phenylene)bismaleimide used for?
This compound is primarily used as the monomer for bismaleimide (BMI) thermoset resins, which cure through their maleimide double bonds, for example with diamines or diallylbisphenol A. These resins are used in high-performance adhesives, composites, and electronics because of their thermal stability and mechanical strength. It is also used as a crosslinking agent for rubbers and other polymers.
What is the chemical formula and molecular weight?
The chemical formula is C21H14N2O4, and the molecular weight is 358.35 g/mol.
How should this product be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible materials.
What grades or purities are available for this product?
Molekula supplies this product in technical grade purity, suitable for industrial applications requiring high-performance resins.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options—please contact our sales team for specific quantities and pricing.
What documentation comes with an order of this product?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.