Physical Property
CAS No: 1459-93-4
Molecular formula:C10H10O4
Molecular Weight 194
Physical State White, flake solid
Flash Point, C.O.C. ℃,                        345
Melting Point,℃                                  68 Min
Boiling Point, ℃@ 10 mm Hg          156
Specific Gravity                                  1.1477 @ 85℃(molten)

One of the principals uses of Dimethyl Isophthalate is as an intermediate in the synthesis of polyesters. In order to obtain the structural strength needed in fibers and films, the polyester must be of high molecular weight. The most efficient route to these high molecular weights is through transesterification of methyl ester with a glycol. A specially purified methyl ester is needed in this application.

It is used primarily to improve the clarity and strength of PET carbonated drink bottles. Another significant applicant area is in optical resin, Thermoplastic elastomer, engineering plastics.


Specs: Standards Typical Test Results
Appearance White, flake solid White flake solid
Color 15 Max <10
Content, GC 99.8% Min 99.98%
Moisturer 0.10% Max 0.039
Acid Value(mgKOH/g) 0.10 Max 0.043

Packed in 25kg PP woven bags, or 500kg Flexible big bag.