Description

Ciacidyellow13 CAS NO 1934-25-4 is a high-performance, synthetic organic pigment belonging to the diarylide yellow class. This pigment is valued for its excellent color strength, good lightfastness, and strong solvent resistance, making it a critical component in demanding industrial applications. It is primarily sought after by manufacturers in the plastics, inks, coatings, and textile industries for coloring a wide range of polymers and formulations.

Application

• Primary coloring agent for plastics and polymers, including PVC, polyethylene, and polypropylene.
• Formulation of high-quality printing inks for packaging, publications, and textiles.
• Manufacture of industrial and decorative paints and coatings.
• Mass coloration of synthetic fibers and yarns.
• Pigmentation of rubber and elastomeric products.
• Coloring for masterbatches and color concentrates.

Basic Information

Product Name	Ciacidyellow13
CAS No.	1934-25-4
Molecular Formula	C₃₆H₃₄Cl₂N₆O₄
Molecular Weight	685.60 g/mol
Synonyms	Pigment Yellow 13; C.I. 21100; Diarylide Yellow AAA; Diarylide Yellow 13; Benzidine Yellow AAA; 3,3'-Dichlorobenzidine Diarylide Pigment; Permanent Yellow GR; Vulcan Fast Yellow GR
EINECS	217-710-3

Quality Control

Our Ciacidyellow13 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. The product undergoes comprehensive testing for key parameters including color value, strength, particle size distribution, and purity. Certificates of Analysis (COA) documenting these results are available for every shipment 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. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Yellow Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Standard
Purity (HPLC)	≥ 97.0%
Volatile Matter	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (D50)	≤ 0.5 μm
pH Value (10% Slurry)	6.0 - 8.0

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