Description

Fast Scarlet Rc Base is a high-purity diazo component used in the synthesis of azo pigments and dyes. This compound is valued for its ability to produce vivid, lightfast scarlet and red shades with excellent application properties. It is an essential chemical intermediate for manufacturers in the pigments, inks, plastics, and textile industries requiring consistent color performance and batch-to-batch reliability.

Application

• Azo Pigment Synthesis: Primary intermediate for producing high-performance scarlet, red, and orange azo pigments.
• Industrial Coatings & Inks: Used in the manufacture of pigments for automotive, industrial, and decorative coatings, as well as printing inks.
• Plastics and Masterbatch Coloring: Imparts stable and vibrant color to polymers, including PVC, polyolefins, and engineering plastics.
• Textile Dye Production: Serves as a key component in the synthesis of dyes for coloring synthetic and natural fibers.
• Specialty Chemical Intermediates: Used in fine chemical synthesis for applications requiring specific diazo coupling reactions.

Basic Information

Product Name	Fast Scarlet Rc Base
CAS No.	27165-17-9
Molecular Formula	C17H13ClN4O4
Molecular Weight	372.76 g/mol
Synonyms	5-Chloro-2,4-dimethoxy-4'-nitrobenzene-1-diazonium; C.I. Azoic Diazo Component 13; Fast Scarlet RC Base; Azoic Diazo Component 13; Scarlet Base Rc; Fast Scarlet R; 4-Nitro-2,5-dimethoxy-4'-chlorobenzenediazonium; 1-Diazo-4-chloro-2,5-dimethoxy-4-nitrobenzene
EINECS	248-299-7

Quality Control

Our Fast Scarlet Rc Base is manufactured under a strict quality management system to ensure high purity and consistent performance. Every batch is tested against rigorous in-house specifications, which typically include assay, identification, and impurity profile analysis. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your technical requirements.

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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or in opaque containers until use.

Specification

Item	Specification
Appearance	Yellow to light brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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