Product name: Pyromellitic dianhydride
Alias: Pyromellitic dianhydride; 1,2,4,5-Benzenetetracarboxylic dianhydride; benzene-1,2:4,5-tetracarboxylic dianhydride; PMDA; 1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone
CAS RN: 89-32-7
Molecular formula: C₁₀H₂O₆
Molecular weight: 218.12
Purity: ≥98.0%
MDL No.: MFCD00005005
Beilstein No.: 213583
EINECS No.: 201-898-9

Pyromellitic dianhydride is white or yellowish crystal. It is soluble in dimethyl sulfoxide, dimethylformamide, acetone, and other organic solvents, insoluble in diethyl ether, trichloromethane, and benzene. The product mainly functions as raw material for polyimide. It can be used in producing curing matting agent for epoxy resin and cross-linking agent for polyester resin.

Uses:
The product mainly functions as raw material for polyimide. It can be used in producing curing matting agent for epoxy resin and cross-linking agent for polyester resin.
In producing polyimide films, polyimide resins, matting agents for powdery coating, and advanced electrical insulating materials.
In producing polyimide resin, heat-resistant insulation varnish, PVC plasticizer, cross-linking agent for synthetic resin, curing agent for epoxy resin, and etc.

Notes: the product is irritant to eyes, respiratory system, and skin. Wear rubber gloves, goggles, mask, and other protective articles.
Keep away from fire, source, and damp.