Description

4,5-Dihydro-1H-Benzo[G]Indazole-3-Carboxylic Acid CAS NO 856257-31-3 is a high-purity, advanced pharmaceutical intermediate characterized by its fused heterocyclic structure. This compound is of significant commercial value as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex molecular scaffolds. It is primarily sought after by research institutions and manufacturers in the global pharmaceutical and biotechnology sectors for drug discovery and development programs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Organic Synthesis Building Block: Used in medicinal chemistry for constructing complex fused indazole derivatives through various coupling and cyclization reactions.
• Research & Development (R&D): Essential for academic and industrial research in exploring new chemical entities and structure-activity relationships (SAR).
• Agrochemical Research: Potential application as an intermediate in the development of new crop protection agents with specific biological activity.
• Material Science Precursor: Investigated for use in synthesizing organic electronic materials and ligands for catalytic systems.

Basic Information

Product Name	4,5-Dihydro-1H-Benzo[G]Indazole-3-Carboxylic Acid
CAS No.	856257-31-3
Molecular Formula	C₁₆H₁₂N₂O₂
Molecular Weight	264.28 g/mol
Synonyms	1H-Benzo[g]indazole-3-carboxylic acid, 4,5-dihydro-; 4,5-Dihydro-1H-benzo[g]indazole-3-carboxylic acid; Benzo[g]indazole-3-carboxylic acid, 4,5-dihydro-1H-; 856257-31-3; 3-Carboxy-4,5-dihydro-1H-benzo[g]indazole; 4,5-Dihydrobenzo[g]indazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4,5-Dihydro-1H-Benzo[G]Indazole-3-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS), to ensure it meets the high standards required for pharmaceutical R&D. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability, consistency, and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This material may be hygroscopic; keep the container tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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