Description

Benzenesulfonic Acid, 3,3'-[(3,3'-Dichloro[1,1'- Biphenyl]-4,4'-Diyl)Bis[Azo(4,5-Dihydro-3-Methyl -5-Oxo-1H-Pyrazole-4,1-Diyl)]]Bis-, Calcium Salt (1:1) is a high-performance, complex azo pigment intermediate. This compound is valued for its role in synthesizing high-quality, durable organic pigments with excellent coloristic properties. It is primarily required by manufacturers in the pigments, dyes, and specialty chemicals industries for producing advanced colorants.

Application

• Primary Intermediate for High-Performance Pigments: Key starting material in the synthesis of complex azo and disazo pigments.
• Industrial Coatings: Used in the production of pigments for automotive, coil, and industrial maintenance coatings requiring weatherfastness and chemical resistance.
• Plastics and Masterbatch Coloring: Imparts vibrant and stable colors to engineering plastics, PVC, polyolefins, and synthetic fibers.
• Printing Inks: Suitable for manufacturing pigments used in high-quality packaging, publication, and specialty inks.
• Specialty Dyes: Can be utilized in the synthesis of dyes for niche applications requiring specific lightfastness and solubility profiles.

Basic Information

Product Name	Benzenesulfonic Acid, 3,3'-[(3,3'-Dichloro[1,1'- Biphenyl]-4,4'-Diyl)Bis[Azo(4,5-Dihydro-3-Methyl -5-Oxo-1H-Pyrazole-4,1-Diyl)]]Bis-, Calcium Salt (1:1)
CAS No.	111636-31-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Calcium 3,3'-[(3,3'-dichloro-4,4'-biphenylylene)bis(azo)]bis[4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl]bis(benzenesulphonate); C.I. Pigment Yellow 192; PY192; Pigment Yellow 192; Calcium salt of a disazo pigment; 3,3'-Dichloro-4,4'-biphenylylene bis[azo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)]bis(benzenesulfonic acid) calcium salt
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We implement strict in-process controls and final batch analysis to guarantee consistent purity and performance. Certificates of Analysis (COA) detailing key specifications such as purity, heavy metal content, and impurity profile are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Calcium Content	Within theoretical range

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