Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Basic Information
Product Name: Dimethyldicyane
Alias: DMDC; MACM; 4,4'-Methylenebis(2-methylcyclohexylamine); 3,3'-Dimethyl-4,4'-diaminodicyclohexylmethane
CAS No. : 6864-37-5
Molecular Formula: C??H??N?
Molecular Weight: 238.42 g/mol
Classification: Alicyclic diamine; Epoxy curing agent; Polyamide monomer; Organic synthesis intermediate
Physical & Chemical Properties
- Appearance: Colorless to light orange transparent viscous liquid
- Odor: Mild amine odor
- Melting Point: -7 °C
- Boiling Point: 347 °C
- Density: 0.945 g/mL at 25 °C
- Refractive Index: n??/D 1.499
- Flash Point: 173 °C
- Solubility: 3.6 g/L in water (20 °C); soluble in organic solvents
- Stability: Stable under normal conditions; strong alkaline, avoid strong acids/oxidants; hygroscopic
- pH: 11 (3.6 g/L, H?O, 20 °C)
Specification Table
| Item | Specification | Unit | Remarks |
| Product Name | Dimethyldicyane (DMDC) | — | Alicyclic diamine |
| CAS No. | 6864-37-5 | — | Industrial grade |
| Appearance | Colorless to pale yellow liquid | — | Viscous liquid |
| Molecular Formula | C??H??N? | — | — |
| Molecular Weight | 238.42 | g/mol | — |
| Purity | ≥99.0 | % | GC |
| Moisture | ≤0.2 | % | — |
| Color (Pt-Co) | ≤50 | — | — |
Main Uses
- Epoxy curing agent: Low viscosity, high reactivity; for high-performance coatings, adhesives, sealants, composites, and electronic encapsulation.
- Polyamide monomer: Produce transparent, heat-resistant, high-Tg polyamides for optical and high-temperature applications.
- Polyimide synthesis: Building block for fully aliphatic polyimides and polyimide-siloxanes.
- Adhesives & sealants: Curing agent for epoxy/polyurethane systems; improves bond strength and durability.
- Organic synthesis: Intermediate for isocyanates, UV coatings, PU elastomers, and fine chemicals.
Packaging & Storage
- Packaging: 0.9 kg glass bottle; 180 kg steel drum
- Storage: Below 30 °C; sealed, dry, dark; away from acids/oxidants
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