Description

Benzeneethanehydrazonoyl Chloride, 4-Methyl-α-Oxo- (9Ci) is a specialized organic intermediate with the CAS registry number 277298-59-6. This compound is valued for its reactive hydrazonoyl chloride functional group, which makes it a versatile building block for synthesizing heterocyclic compounds and complex molecular architectures. It is primarily sought by research chemists and process development scientists in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of nitrogen-containing heterocycles like pyrazoles, isoxazoles, and triazoles, which are core structures in many active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its ability to introduce specific functional groups into lead compounds.
• Material Science: Serves as a precursor for creating specialized polymers, dyes, and photoactive materials where its unique structure can impart specific properties.
• Academic & R&D Laboratories: Employed in methodological studies and as a reagent for constructing complex molecules in synthetic organic chemistry research.
• Chemical Biology: Potential use in the synthesis of molecular probes and bioconjugates for studying biological processes.

Basic Information

Product Name	Benzeneethanehydrazonoyl Chloride, 4-Methyl-α-Oxo- (9Ci)
CAS No.	277298-59-6
Molecular Formula	C9H9ClN2O
Molecular Weight	196.63 g/mol
Synonyms	4-Methyl-α-oxobenzeneethanehydrazonoyl chloride; 2-(4-Methylbenzoyl)-2-chloroacetohydrazonoyl chloride; N'-(4-Methylbenzoyl)chloroacetohydrazonoyl chloride; Acetic acid, 2-chloro-2-[(4-methylbenzoyl)hydrazono]-, chloride; (4-Methylbenzoyl)chloroacetic hydrazonoyl chloride; Hydrazonoyl chloride, 4-methyl-α-oxobenzeneethane-; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of Benzeneethanehydrazonoyl Chloride, 4-Methyl-α-Oxo- (9Ci) adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Each lot is characterized by advanced analytical techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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