Terephthalonitrile CAS No. 623-26-7

【Chemical Name】
Terephthalonitrile

【Chemical Synonyms】
1,4-Dicyanobenzene; p-Phthalodinitrile

【CAS No.】
623-26-7

【Molecular Formula】
C₈H₄N₂

【Molecular Weight】
128.13

【Product Properties】
White acicular crystals or powder. Corrosive substance – strongly irritates skin and mucous membranes and may cause sensitization.

【Storage】
Store in a cool, dry place. Keep away from moisture and direct sunlight.

【Packing】
Paper-plastic composite bags (25 kg net) and FIBCs (500 kg net).

【Application】
Key intermediate for pesticides and pharmaceuticals. Also used in hydrogenation to produce p‑phenylenediamine (polyamide raw material and epoxy curing agent), hydrolysis to terephthalic acid (for polyester resins, fibers, films, insulating paints, engineering plastics, plasticizers), and chlorination to tetrachloroterephthalonitrile (for herbicides, insecticides, and drugs).

【Product Specification】
Purity ≥ 99% (assay)
Appearance: white acicular crystals or powder
Conforms to toxic chemical handling and transportation regulations.