Description

4-Amino-4'-Hydrazino-2,2'-Stilbenedisulfonic Acid is a specialized, high-purity sulfonated stilbene derivative that serves as a critical intermediate in advanced chemical synthesis. Its bifunctional amino and hydrazino groups, combined with strong sulfonic acid moieties, make it a versatile building block for creating functional dyes, optical brighteners, and analytical reagents. This compound is essential for manufacturers and R&D laboratories in the fine chemicals, specialty dyes, and life science sectors seeking to develop products with specific chromophoric or chelating properties.

Application

• Key Intermediate for Fluorescent Brightening Agents (FBAs): Used in the synthesis of high-performance optical brighteners for paper, textiles, and detergents.
• Precursor for Functional Dyes: Serves as a building block for creating reactive and acid dyes with enhanced water solubility and fiber affinity.
• Chelating Agent Synthesis: Utilized in the production of specialized ligands and chelating agents for metal ion binding applications.
• Analytical Reagent Development: Acts as a starting material for synthesizing chromogenic and fluorogenic probes used in biochemical assays and diagnostic kits.
• Polymer Modification: Employed to introduce sulfonic acid groups and reactive sites into polymers for ion-exchange resins or functional materials.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new photochemical and coordination compounds.

Basic Information

Product Name	4-Amino-4'-Hydrazino-2,2'-Stilbenedisulfonic Acid
CAS No.	858804-80-5
Molecular Formula	C14H16N4O6S2
Molecular Weight	400.43 g/mol
Synonyms	4,4'-Diamino-2,2'-stilbenedisulfonic acid, 4-hydrazino derivative; 4-Amino-4'-hydrazinostilbene-2,2'-disulfonic acid; Stilbene disulfonic acid, 4-amino-4'-hydrazino-; 2,2'-Stilbenedisulfonic acid, 4-amino-4'-hydrazino-; DASD hydrazino derivative; FBAS intermediate; Optical brightener intermediate 858804-80-5
EINECS	Contact for details

Quality Control

Our production of 4-Amino-4'-Hydrazino-2,2'-Stilbenedisulfonic Acid adheres to a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment. We support compliance with relevant global chemical inventory regulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to brownish powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.