Description

5-Chloro-1H-Indazole-3-Carboxylic Acid Ethyl Ester is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of kinase inhibitors, receptor antagonists, and other biologically active small molecules.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators.
• Material Science: Building block for creating advanced polymers, liquid crystals, and organic electronic materials.
• Chemical Biology: Employed as a scaffold or probe in medicinal chemistry and drug discovery programs.
• Custom Synthesis: Serves as a starting material for contract research organizations (CROs) and CDMOs for client-specific projects.

Basic Information

Product Name	5-Chloro-1H-Indazole-3-Carboxylic Acid Ethyl Ester
CAS No.	1081-05-6
Molecular Formula	C10H9ClN2O2
Molecular Weight	224.64 g/mol
Synonyms	Ethyl 5-Chloro-1H-indazole-3-carboxylate; 5-Chloro-1H-indazole-3-carboxylic acid ethyl ester; 5-Chloroindazole-3-carboxylic Acid Ethyl Ester; 1081-05-6; 5-Chloro-3-(ethoxycarbonyl)-1H-indazole; Ethyl 5-chloroindazole-3-carboxylate; 1H-Indazole-3-carboxylic acid, 5-chloro-, ethyl ester
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Standard quality parameters include purity (HPLC), identity confirmation (IR, NMR), and control of related substances. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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