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About product and suppliers:
        Alibaba.com offers 237 isophthalic acid products. About 19% of these are organic acid, 14% are syntheses material intermediates, and 12% are pharmaceutical intermediates. 

A wide variety of isophthalic acid options are available to you, such as industrial grade, electron grade, and agriculture grade. You can also choose from sulfonic acid, carboxylic acid, and chloride. As well as from free samples. 

There are 213 isophthalic acid suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 83%, 6%, and 5% of isophthalic acid respectively. 

Isophthalic acid products are most popular in South Asia, Southern Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 101 with ISO9001, 8 with Other, and 3 with ISO14001 certification.