Description

Chloranilic Acid CAS NO 87-88-7 is a high-purity, tetrachloro-substituted quinone derivative widely recognized as a versatile analytical reagent and chemical intermediate. Its primary value lies in its strong chelating properties and distinct colorimetric response, making it a critical tool for precise metal ion detection and quantification. This compound is essential for quality control laboratories, research institutions, and manufacturers in the pharmaceutical, chemical analysis, and specialty chemical synthesis sectors.

Application

• Analytical Chemistry Reagent: Used as a sensitive colorimetric and spectrophotometric reagent for the determination of various metal ions, including calcium, magnesium, and rare earth elements.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of complex organic molecules and potential active pharmaceutical ingredients (APIs).
• Dye and Pigment Precursor: Acts as an intermediate in the production of specialized dyes, pigments, and organic colorants due to its quinoid structure.
• Complexometric Titrations: Employed as a metallochromic indicator in titrations for determining metal ion concentrations with high accuracy.
• Research & Development: Utilized in academic and industrial R&D for studying redox reactions, chelation chemistry, and developing new analytical methodologies.
• Quality Control Testing: Applied in standard test methods for verifying the purity and composition of inorganic salts and other chemical products.

Basic Information

Product Name	Chloranilic Acid
CAS No.	87-88-7
Molecular Formula	C6H2Cl2O4
Molecular Weight	208.98 g/mol
Synonyms	2,5-Dichloro-3,6-dihydroxy-1,4-benzoquinone; 2,5-Dichloro-3,6-dihydroxy-p-benzoquinone; Tetrachloro-p-benzoquinone; Chloranilate; 1,4-Benzoquinone, 2,5-dichloro-3,6-dihydroxy-; 3,6-Dihydroxy-2,5-dichlorobenzoquinone
EINECS	201-783-5

Quality Control

Our Chloranilic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for analytical and synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. For long-term stability, minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Reddish-brown to violet crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm

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