Description

8-Quinolinesulfonic Acid, 2-(1,3-Dihydro-1,3-Dioxo-2H-Inden-2-Ylidene)-1,2-Dihydro- (9Ci) is a specialized organic compound featuring a quinoline core functionalized with a sulfonic acid group and an indenedione moiety. This unique molecular architecture makes it a valuable intermediate and functional component in advanced chemical synthesis. It is primarily sought by pharmaceutical research, agrochemical development, and specialty dye manufacturing sectors for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel quinoline-based drug candidates with potential biological activity.
• Agrochemical Research: Used in developing advanced crop protection agents, including fungicides and herbicides, leveraging its complex heterocyclic structure.
• Functional Dye & Pigment Synthesis: Acts as a precursor for creating specialized dyes, pigments, and optical brighteners due to its conjugated system and sulfonic acid group.
• Organic Electronic Materials: Investigated as a potential component in the development of organic semiconductors or charge-transport materials.
• Chemical Research & Development: Employed as a versatile reagent in organic synthesis for constructing complex polycyclic frameworks.
• Analytical Chemistry: May be used as a chelating agent or a fluorescent probe precursor in certain analytical methodologies.

Basic Information

Item	Details
Product Name	8-Quinolinesulfonic Acid, 2-(1,3-Dihydro-1,3-Dioxo-2H-Inden-2-Ylidene)-1,2-Dihydro- (9Ci)
CAS No.	83440-72-6
Molecular Formula	C₁₈H₁₁NO₅S
Molecular Weight	353.35 g/mol
Synonyms	2-(1,3-Dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-8-quinolinesulfonic acid; 2-(2,3-Dihydro-1,3-dioxo-1H-inden-2-yl)-8-quinolinesulfonic acid; 8-Quinolinesulfonic acid, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-; 2-(1,3-Dioxoinden-2-ylidene)-1,2-dihydroquinoline-8-sulfonic acid; Quinoline-8-sulfonic acid, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-; 83440-72-6; (2Z)-2-(1,3-Dioxo-2,3-dihydro-1H-inden-2-ylidene)-1,2-dihydroquinoline-8-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 8-Quinolinesulfonic Acid, 2-(1,3-Dihydro-1,3-Dioxo-2H-Inden-2-Ylidene)-1,2-Dihydro- (9Ci) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Standard Grade)
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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