Description

4-Chloro-1-Methyl-1H-Indazole-3-Carbaldehyde is a high-purity, synthetically versatile heterocyclic building block. This compound is a critical intermediate in modern pharmaceutical and agrochemical research, enabling the construction of complex molecular architectures. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced material sectors for the synthesis of novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors, anticancer agents, and other biologically active small molecules targeting indazole-based scaffolds.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators where the indazole core provides specific bioactivity.
• Material Science: Serves as a building block for organic ligands in catalysis and for creating functional polymers with specialized properties.
• Chemical Synthesis: The aldehyde and chloro functional groups offer versatile handles for further derivatization via cross-coupling, condensation, and nucleophilic substitution reactions.
• Academic & Contract Research: Essential for medicinal chemistry programs and discovery research in academic institutions and CROs (Contract Research Organizations).

Basic Information

Product Name	4-Chloro-1-Methyl-1H-Indazole-3-Carbaldehyde
CAS No.	1033693-09-2
Molecular Formula	C9H7ClN2O
Molecular Weight	194.62 g/mol
Synonyms	4-Chloro-1-methyl-1H-indazole-3-carboxaldehyde; 1-Methyl-4-chloroindazole-3-carbaldehyde; 3-Formyl-4-chloro-1-methylindazole; 4-Chloro-1-methylindazole-3-carbaldehyde; 1033693-09-2; 4-Chloro-1-methyl-1H-indazole-3-carboxaldehyde; 4-Chloro-1-methylindazole-3-carboxaldehyde
EINECS	Contact for details

Quality Control

Every batch of 4-Chloro-1-Methyl-1H-Indazole-3-Carbaldehyde is manufactured under strict quality management protocols. We guarantee high chemical purity and consistency, supported by comprehensive analytical testing including HPLC, NMR, and MS. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to ensure it meets your research and development specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is easily oxidized and should be handled under an inert atmosphere for long-term storage or when opening a new container to maintain purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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