Description

1-(1-Naphthylazo)-2-Naphthol is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its strong chromophore and specific chelating properties, making it essential for precise color development and metal ion detection. It is primarily needed by manufacturers in the dye and pigment industry, as well as by analytical laboratories for use as a metallochromic indicator in complexometric titrations.

Application

• Key intermediate for the synthesis of high-performance azo dyes and pigments.
• Used as a metallochromic indicator in analytical chemistry, particularly for complexometric titrations of metal ions like calcium and magnesium.
• Employed in the formulation of specialized colorants for plastics and polymers.
• Acts as a reagent in histological staining and other laboratory staining procedures.
• Potential use as a photosensitizer in research applications.
• Utilized in the development of chemical sensors for metal detection.

Basic Information

Product Name	1-(1-Naphthylazo)-2-Naphthol
CAS No.	2653-64-7
Molecular Formula	C₂₀H₁₄N₂O
Molecular Weight	298.34 g/mol
Synonyms	1-(1-Naphthylazo)-2-naphthol; 1-[(1-Naphthalenyl)azo]-2-naphthalenol; 1-(1-Naphthylazo)-β-naphthol; Sudan Brown; CI 11160; Fat Brown RR; 1,1'-Azo-2-naphthol; α-Naphthylazobeta-naphthol
EINECS	220-185-6

Quality Control

Our 1-(1-Naphthylazo)-2-Naphthol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to guarantee compliance with your technical requirements.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190 - 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.