Description

Fast Red Itr is a high-purity organic pigment and azo dye intermediate, identified by CAS No. 97-35-8. It is valued for its bright, stable red hue and its role as a critical precursor in the synthesis of high-performance colorants. This product is essential for manufacturers in the pigments and dyes industry seeking reliable quality for demanding applications.

Application

• Pigment Manufacturing: A key intermediate for producing high-quality red azo pigments used in industrial coatings, plastics, and inks.
• Textile Dyeing: Employed in the synthesis of dyes for coloring natural and synthetic fibers, offering good color fastness.
• Printing Inks: Used to formulate vivid red shades in various printing applications, including packaging and publications.
• Plastics and Polymers: Imparts stable coloration to a wide range of plastic materials during the manufacturing process.
• Lacquers and Paints: Contributes to the production of durable, weather-resistant red pigments for automotive and architectural paints.
• Research & Development: Serves as a standard or reagent in chemical research for developing new colorant molecules and studying azo chemistry.

Basic Information

Product Name	Fast Red Itr
CAS No.	97-35-8
Molecular Formula	C17H13N3O3
Molecular Weight	307.30 g/mol
Synonyms	Fast Red ITR; C.I. Pigment Red 23; C.I. 12355; 2-Methyl-5-[(2-methyl-5-nitrophenyl)azo]-3-oxo-4-phenyl-2,3-dihydrofuran; 5-[(2-Methyl-4-nitrophenyl)azo]-3-oxo-4-phenyl-2,3-dihydro-2-furancarboxylic acid, methyl ester; Permanent Red FR; Permanent Red FGR; Lithol Scarlet 4450
EINECS	202-574-8

Quality Control

Our Fast Red Itr is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, which typically include parameters for identity, assay, and impurity profile. A Certificate of Analysis (COA) detailing these results is provided with every shipment to support your quality assurance protocols.

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 oxidizing agents.

Specification

Item	Specification
Appearance	Red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size (Typical)	Pass through 80 mesh

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