Description

cis-Aconitic Anhydride is a reactive cyclic anhydride derived from aconitic acid, serving as a versatile chemical intermediate. Its unique structure makes it valuable for synthesizing specialized polymers, fine chemicals, and pharmaceutical building blocks. This product is essential for R&D laboratories and industrial manufacturers in the polymer, agrochemical, and pharmaceutical sectors seeking to introduce functional groups or modify material properties.

Application

• Polymer Chemistry: As a monomer or cross-linking agent for the synthesis of specialty polyesters, polyamides, and epoxy resin hardeners.
• Pharmaceutical Intermediates: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Employed in organic synthesis for creating dyes, plasticizers, and other high-value additives.
• Bioconjugation & Protein Modification: Useful in biochemical research for modifying peptides and proteins due to its reactive anhydride group.
• Academic & Industrial R&D: Serves as a critical reagent for methodological development and novel material discovery.

Basic Information

Product Name	cis-Aconitic Anhydride
CAS No.	6318-55-4
Molecular Formula	C6H4O5
Molecular Weight	156.09 g/mol
Synonyms	1-Propene-1,2,3-tricarboxylic acid cyclic 1,2-anhydride; cis-1,2,3-Propenetricarboxylic acid 1,2-anhydride; Aconitic acid anhydride; (Z)-1-Propene-1,2,3-tricarboxylic acid 1,2-anhydride; 3-Carboxyglutaconic anhydride; Aconitic anhydride; cis-1,2,3,6-Tetrahydrophthalic anhydride (related structure)
EINECS	228-658-8

Quality Control

Our cis-Aconitic Anhydride is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing purity, physical characteristics, and test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 compromise product integrity. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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