DSD Acid CAS#81-11-8
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- Appearance: Light yellow powder
- Assay: 95.0% min
- Packaging: 25kg/bag
- Sample: Available
DSD Acid: The Complete Guide
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Quality Control of DSD Acid
Quality Control & MSDS
Packing of Bretazenil
Description of DSD Acid
4,4′-Diamino-2,2′-stilbenedisulfonic acid is the organic compound with the formula (H2NC6H3SO3H)2C2H2. It is a white, water-soluble solid. Structurally, it is a derivative of trans-stilbene, containing amino and sulfonic acid functional groups on each of the two phenyl rings. The compound is a popular optical brightener for use in laundry detergents. It is produced by reduction of 4,4′-dinitro-2,2′-stilbenedisulfonic acid with iron powder.
Basic Info of DSD Acid
4,4′-diamino-stilbene-2,2′-disulfonic acid;tinopalbhs;DSD ACID;4,4‘-Diamino-2,2‘-stilbenedisulfonic acid;DASDA;Expand
Appearance & Physical State
White to Yellowish Crystalline Powder
Stable. Combustible. Incompatible with iron, strong oxidizing agents.
What is DSD Acid?
Part I: Introduction
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is DSD Acid which has developed particularly rapidly in recent years. Do you know about DSD Acid?
The official answer: DSD acid is a chemical substance with the appearance of a light brownish-yellow powder that deepens to a teal color under light. Also known as 4,4′-Diamino-2,2′-stilbenedisulfonic acid, its sodium salt is a common intermediate dye used in dyestuffs.
What’s the application of DSD Acid?
Part 2: In-depth development
Used in the production of fluorescent brighteners, direct freeze yellow G and direct yellow R, and as an insecticide.
Intermediates such as dyes and fluorescent brighteners.
Produced by the sulfonation of p-nitrotoluene to p-nitrotoluene o-sulfonic acid, followed by catalytic oxidation to DSD acid, and then by reduction.
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