Description

4-Chloro-2-(Z)-Methoxycarbonylmethoxyimino-3-Oxobutyric Acid is a high-purity chemical intermediate with the CAS number 95759-10-7. This compound is valued for its role as a key synthon in the synthesis of advanced pharmaceutical actives, particularly in the production of β-lactam antibiotics. It is primarily required by manufacturers in the pharmaceutical, agrochemical, and fine chemical industries for research, development, and commercial-scale production.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of cephalosporin and penicillin antibiotic derivatives.
• Fine Chemical Synthesis: Used in the preparation of complex organic molecules requiring the introduction of a functionalized oxyimino butyric acid moiety.
• Agrochemical Research: Serves as a precursor in the development of novel active ingredients with specific biological activity.
• Academic & Industrial R&D: Employed in chemical research for studying reaction mechanisms and developing new synthetic pathways.
• Custom Synthesis: Utilized by contract manufacturing organizations (CMOs) for producing tailored intermediates for client projects.

Basic Information

Product Name	4-Chloro-2-(Z)-Methoxycarbonylmethoxyimino-3-Oxobutyric Acid
CAS No.	95759-10-7
Molecular Formula	C7H8ClNO6
Molecular Weight	237.60 g/mol
Synonyms	4-Chloro-2-(Z)-methoxycarbonylmethoxyimino-3-oxobutanoic acid; (Z)-4-Chloro-2-(methoxycarbonylmethoxyimino)-3-oxobutyric acid; 4-Chloro-2-[(methoxycarbonyl)methoxyimino]-3-oxobutanoic acid; 95759-10-7; 4-Chloro-2-(methoxycarbonylmethoxyimino)-3-oxobutyric acid; Butanoic acid, 4-chloro-2-[(methoxycarbonyl)methoxyimino]-3-oxo-; (Z)-isomer of 4-Chloro-2-(methoxycarbonylmethoxyimino)-3-oxobutyric acid
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-(Z)-Methoxycarbonylmethoxyimino-3-Oxobutyric Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.