Description

Naphtholas-D CAS NO 135-61-6 is a specialized chemical compound belonging to the naphthol derivative family, primarily used as a key intermediate in the synthesis of dyes and pigments. Its precise molecular structure is critical for producing vibrant and stable colors in various industrial applications. This product is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking consistent quality and reliable performance in their formulations.

Application

• Dye and Pigment Manufacturing: Serves as a crucial intermediate for synthesizing azo dyes, solvent dyes, and high-performance pigments.
• Textile Industry: Used in the production of dyes for coloring natural and synthetic fibers, including cotton, wool, and polyester.
• Ink Production: A key component in formulating printing inks for packaging, publications, and textiles, providing excellent color strength.
• Organic Synthesis: Acts as a versatile building block for creating more complex organic molecules in pharmaceutical and agrochemical research.
• Research & Development: Employed in chemical R&D laboratories for developing new colorants and functional materials.

Basic Information

Product Name	Naphtholas-D
CAS No.	135-61-6
Molecular Formula	C10H8O2
Molecular Weight	160.17 g/mol
Synonyms	1-Naphthol-2-carboxylic acid; 1-Hydroxy-2-naphthoic acid; 2-Hydroxy-1-naphthoic acid; 2-Carboxy-1-naphthol; 1,2-Naphthalenediol-1-carboxylic acid; Naphthol AS-D; Naphthol D; CI 37520
EINECS	205-208-6

Quality Control

Our Naphtholas-D is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with industry best practices to meet the stringent requirements of our global B2B clients.

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. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light tan powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	191 - 195 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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