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4-4 Diamino Sulfanilide Market - Global Industry Analysis 2026 Dye intermediates are the building blocks for modern dyes. Dye intermediates include processed petrochemical products. 4-4 Diamino Sulfanilide (DASA) is one of the important dye intermediates. It is used in the production of dyes for various end-use industries such as textile, leather dyes, and printing inks. Most dye intermediates are manufactured from petrochemical downstream products. Therefore, any change in prices of crude oil affects the 4-4 Diamino Sulfanilide (DASA) market.