Shanghai Photosensitive Materials Co., Ltd. specializes in prodution of series of photosensitive materials of o-diazo-naphthoquinone, including Diazo-2,1,4-chloride(CAS 36451-09-9); Diazo-2,1,5-chloride(CAS 3770-97-6); Diazo-2,1,4-sulfonic acid sodium salt(CAS 64173-96-2); Diazo-2,1,5-sulfonic acid sodium salt(CAS 2657-00-3); the polyphenolic photosensitive resins of the printing grade and Diazo-2,1,4-chloride(CAS 36451-09-9); Diazo-2,1,5-chloride(CAS 3770-97-6) of the electronic grade. These products of the electronic grade can be used to produce the photoresist for integrated circuit, LCD. More than 70% of our products are for export.