Description

4,4'-Diazidostilbene-2,2'-Disulfonic Acid Disodium Salt is a high-purity, photosensitive organic compound primarily utilized as a key intermediate in specialized chemical syntheses. Its unique diazido and sulfonic acid functional groups make it a valuable building block for creating advanced materials with specific light-responsive or cross-linking properties. This product is essential for research and development laboratories and industrial manufacturers in sectors such as polymer chemistry, photoresist formulation, and specialty chemical production.

Application

• Photoresist and Photopolymer Precursor: Acts as a critical photoactive cross-linking agent in the formulation of advanced photoresists for microelectronics and printing plates.
• Polymer Modification: Used to introduce azide functional groups into polymer backbones, enabling subsequent "click chemistry" reactions for creating specialty polymers and hydrogels.
• Bioconjugation and Probe Synthesis: Serves as a versatile linker in the synthesis of photoaffinity labels and fluorescent probes for biochemical and pharmaceutical research.
• Cross-linking Agent: Employed in the production of cross-linked materials where controlled, light-induced curing is required.
• Research & Development: A fundamental reagent in academic and industrial R&D for exploring new photochemical reactions and material properties.
• Specialty Dye and Pigment Intermediate: Used in the synthesis of complex chromophores and functional dyes.

Basic Information

Product Name	4,4'-Diazidostilbene-2,2'-Disulfonic Acid Disodium Salt
CAS No.	2718-90-3
Molecular Formula	C14H8N6Na2O6S2
Molecular Weight	466.35 g/mol
Synonyms	DASD Disodium Salt; 4,4'-Diazido-2,2'-stilbenedisulfonic Acid Disodium Salt; Disodium 4,4'-diazidostilbene-2,2'-disulfonate; Stilbene-2,2'-disulfonic acid, 4,4'-diazido-, disodium salt; 4,4'-Diazidostilbene-2,2'-disulfonate disodium; DAS
EINECS	220-312-7

Quality Control

Every batch of 4,4'-Diazidostilbene-2,2'-Disulfonic Acid Disodium Salt is manufactured and tested under strict quality management protocols to ensure consistency and reliability. Our products undergo rigorous quality testing, including chromatographic purity analysis and functional group verification, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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