Description

4,4'-Diisothiocyanatodihydrostilbene-2,2'-Disulfonicaciddisodiumsalt is a high-purity, water-soluble stilbene derivative containing reactive isothiocyanate groups. This compound is a critical intermediate and functional reagent for the covalent labeling and crosslinking of biomolecules, particularly proteins and antibodies. It is essential for researchers and manufacturers in the fields of bioconjugation, immunoassay development, and diagnostic kit production, where reliable and specific protein modification is required.

Application

• Bioconjugation Reagent: For the covalent coupling of proteins, peptides, or antibodies to various surfaces, particles, or other biomolecules.
• Immunoassay Development: Used in the preparation of enzyme-labeled antibodies (e.g., HRP conjugates) for ELISA and other diagnostic assays.
• Fluorescent Probe Synthesis: Acts as a linker for attaching fluorophores to targeting molecules for cellular imaging and flow cytometry.
• Affinity Chromatography: Immobilization ligand for the preparation of specific affinity columns used in protein purification.
• Diagnostic Kit Manufacturing: A key raw material in the production of consistent and high-sensitivity lateral flow tests and other in-vitro diagnostics (IVD).
• Crosslinking Agent: For studying protein-protein interactions or creating stable protein complexes.

Basic Information

Product Name	4,4'-Diisothiocyanatodihydrostilbene-2,2'-Disulfonicaciddisodiumsalt
CAS No.	150321-88-3
Molecular Formula	C₁₆H₁₀N₂Na₂O₆S₄
Molecular Weight	516.46 g/mol
Synonyms	DIDS (Disodium salt); 4,4'-Diisothiocyanato-2,2'-stilbenedisulfonic Acid Disodium Salt; Dihydro-4,4'-diisothiocyanatostilbene-2,2'-disulfonic Acid Disodium Salt; H₂DIDS (Disodium salt); STIL-DIDS; NSC 76812; 4,4'-DIDS; 4,4'-Diisothiocyanatostilbene-2,2'-disulfonate (Disodium Salt)
EINECS	Contact for details

Quality Control

Our 4,4'-Diisothiocyanatodihydrostilbene-2,2'-Disulfonicaciddisodiumsalt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets the stringent requirements for research and diagnostic applications. Certificates of Analysis (COA) with detailed specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive). Allow the container to reach room temperature before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility	Soluble in water, DMSO

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