Description

4-Chloro-Isatoic Anhydride is a versatile and reactive heterocyclic building block used in advanced organic synthesis. This compound is valued for its role as a key precursor in the development of pharmacologically active molecules, particularly in medicinal chemistry. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to synthesize complex heterocyclic scaffolds.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of quinazolinone and quinoline derivatives, which are core structures in various drug candidates.
• Agrochemical Synthesis: Used in the development of novel herbicides and pesticides, leveraging its reactive anhydride moiety.
• Dye and Pigment Manufacturing: Serves as a building block for creating specialized colorants and functional dyes.
• Material Science Research: Employed in the synthesis of organic semiconductors and polymers with specific electronic properties.
• Chemical Biology Probes: Utilized to create labeled compounds and molecular probes for biochemical research.
• Custom Synthesis and Contract Manufacturing: A key starting material for custom synthesis projects requiring functionalized isatoic anhydride frameworks.

Basic Information

Product Name	4-Chloro-Isatoic Anhydride
CAS No.	40928-13-0
Molecular Formula	C8H4ClNO3
Molecular Weight	197.57 g/mol
Synonyms	4-Chloro-1H-benzo[d][1,3]oxazine-2,4-dione; 4-Chloro-2H-3,1-benzoxazine-2,4(1H)-dione; 4-Chloro-1H-2,3-benzoxazine-1,3(4H)-dione; 4-Chloroisatoic anhydride; 4-Chloro-1,3-dihydro-2,1,3-benzoxadiazin-4-one 2-oxide; Isatoic Anhydride, 4-chloro-; 4-Chloro-2,1,3-benzoxadiazin-4(3H)-one 3-oxide
EINECS	Contact for details

Quality Control

Our 4-Chloro-Isatoic Anhydride is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) documenting all critical parameters are 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 (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
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.