Description

1-Hydroxy-6-Ureido-3-Naphthalenesulfonic Acid is a specialized naphthalene derivative that serves as a key intermediate in the synthesis of advanced organic compounds. Its molecular structure, featuring both sulfonic acid and urea functional groups, makes it a valuable building block for creating high-performance dyes, pigments, and optical brighteners. This product is essential for manufacturers in the fine chemical, specialty dye, and advanced material sectors seeking reliable, high-purity intermediates for their synthesis processes.

Application

• Dye and Pigment Intermediate: A critical precursor in the synthesis of complex azo dyes, acid dyes, and high-value pigments.
• Optical Brightener Production: Used in the manufacture of stilbene-based optical brightening agents (OBAs) for paper, textiles, and detergents.
• Fine Chemical Synthesis: Serves as a versatile building block for pharmaceutical intermediates and other specialty organic compounds.
• Research & Development: Employed in academic and industrial R&D for developing new functional materials and chromophores.
• Chemical Analysis: Can be used as a standard or reagent in analytical chemistry methodologies.

Basic Information

Product Name	1-Hydroxy-6-Ureido-3-Naphthalenesulfonic Acid
CAS No.	6421-85-8
Molecular Formula	C11H10N2O6S
Molecular Weight	298.27 g/mol
Synonyms	6-Ureido-1-hydroxy-3-naphthalenesulfonic acid; 1-Hydroxy-6-ureidonaphthalene-3-sulfonic acid; 1-Naphthol-6-ureido-3-sulfonic acid; H-acid urea; 1-Hydroxy-6-ureidonaphthalene-3-sulfonic Acid; 6-Ureido-1-naphthol-3-sulfonic Acid
EINECS	229-198-2

Quality Control

Our 1-Hydroxy-6-Ureido-3-Naphthalenesulfonic Acid is produced under a strict quality management system. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements of our global clientele. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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