Description

Ethyl 5-Chloro-3-Oxo-2,3-Dihydro-1H-Indazole-1-Carboxylate is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. This compound matters as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, enabling critical structural modifications. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory conditions.
• Agrochemical Synthesis: Serves as a key building block for developing new-generation herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Used in academic and industrial R&D for exploring novel heterocyclic chemistry and creating compound libraries for screening.
• Active Pharmaceutical Ingredient (API) Manufacturing: Employed in the scalable production of specific APIs where the indazole core is a required pharmacophore.
• Material Science: Potential intermediate for synthesizing specialty polymers or organic electronic materials with unique properties.

Basic Information

Product Name	Ethyl 5-Chloro-3-Oxo-2,3-Dihydro-1H-Indazole-1-Carboxylate
CAS No.	89438-38-0
Molecular Formula	C10H9ClN2O3
Molecular Weight	240.64 g/mol
Synonyms	1H-Indazole-1-carboxylic acid, 5-chloro-2,3-dihydro-3-oxo-, ethyl ester; Ethyl 5-chloro-3-oxo-2,3-dihydroindazole-1-carboxylate; 5-Chloro-1-(ethoxycarbonyl)indazol-3(2H)-one; 89438-38-0; 5-Chloro-3-oxo-2,3-dihydro-1H-indazole-1-carboxylic acid ethyl ester; Ethyl 5-chloro-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate; 1-Carbethoxy-5-chloro-3-hydroxyindazole
EINECS	Contact for details

Quality Control

Our Ethyl 5-Chloro-3-Oxo-2,3-Dihydro-1H-Indazole-1-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for pharmaceutical and agrochemical synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment.

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). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials.

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.