Description

Sulphur Yellow 2 is a synthetic organic pigment belonging to the thiazole class, known for its bright and stable yellow hue. This colorant is valued for its excellent tinting strength and good resistance properties, making it a reliable choice for demanding industrial applications. It is primarily utilized by manufacturers in the plastics, coatings, and specialty inks industries seeking consistent and durable coloration.

Application

• Primary colorant for the mass coloration of polyolefins (PP, PE) and engineering plastics.
• Pigment for industrial coatings, including automotive primers and industrial finishes.
• Manufacturing of masterbatches and color concentrates for the plastics industry.
• Coloration of synthetic fibers and spin dyeing processes.
• Used in the formulation of specialty printing inks for packaging and publications.
• Potential use as a colorant for rubber products and other elastomers.

Basic Information

Product Name	Sulphur Yellow 2
CAS No.	1326-66-5
Molecular Formula	C16H12N4O4S2
Molecular Weight	380.42 g/mol
Synonyms	Pigment Yellow 2; C.I. 11740; Benzamide, N-(4-((2,5-dichlorophenyl)azo)-3-hydroxy-2-naphthoyl)-2-methyl-; Thioindigo Bordeaux; C.I. Pigment Yellow 2; 2-Methyl-5-[(2,5-dichlorophenyl)azo]-3-hydroxy-N-phenyl-4-pyridinecarboxamide; Permanent Yellow FGL; Vulcan Fast Yellow G
EINECS	215-408-7

Quality Control

Every batch of Sulphur Yellow 2 is manufactured and tested under a strict quality management system. We ensure consistent performance in color strength, hue, and dispersion properties critical for industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with each shipment to guarantee it meets your specific formulation requirements.

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 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	Within agreed tolerance
Purity (HPLC)	≥ 96.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 1.0%
Residue on Sieve (45μm)	≤ 0.5%

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