Description

C.I.Leuco Sulphur Blue 19 is a key leuco form intermediate used in the synthesis of sulfur dyes, specifically for the production of C.I. Sulphur Blue 19. This compound matters for its role in generating the final, highly stable blue dye used extensively in textile coloration. Industrial users in the textile dye manufacturing sector need this high-purity intermediate to ensure consistent color strength and fastness properties in their final products.

Application

• Primary Intermediate for Dye Synthesis: The essential precursor for the industrial production of C.I. Sulphur Blue 19, a workhorse blue dye for textiles.
• Textile Dyeing: Used in the manufacture of sulfur dyes for dyeing cotton, viscose, and other cellulose fibers, valued for their excellent wash fastness and cost-effectiveness.
• Leuco Dye Systems: Functions within specialized leuco dye formulations where controlled oxidation is required to develop the final color.
• Industrial Colorant Production: Serves as a critical building block for dye manufacturers requiring reliable and consistent batches for large-scale production.

Basic Information

Product Name	C.I.Leuco Sulphur Blue 19
CAS No.	103469-00-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Leuco Sulphur Blue 19; C.I. 10215; Leuco Sulphur Blue BN; Leuco Sulphur Blue 19 Precursor; Sulphur Blue 19 Leuco Base; CI Leuco Sulphur Blue 19; Vat Blue 19 Leuco Form; Intermediate for C.I. Sulphur Blue 19
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for dye intermediates. Each batch is controlled for identity, purity, and consistency to meet the stringent requirements of textile dye manufacturers. Certificates of Analysis (COA) detailing key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its easily oxidized nature, it is recommended to store under an inert atmosphere or with minimal headspace after opening. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Contact for details
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 1.0%
Ash Content	≤ 0.5%

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