Description

1-(2-Pyridylazo)-2-Naphthol is a high-purity, versatile organic reagent widely recognized for its chelating properties. It serves as a critical analytical reagent for the spectrophotometric determination of various metal ions, offering high sensitivity and selectivity. This compound is essential for quality control laboratories, research institutions, and industrial facilities involved in chemical analysis, environmental testing, and material science.

Application

• Spectrophotometric Reagent: Primary use as a chromogenic chelating agent for the quantitative analysis of metal ions such as cobalt, copper, nickel, and zinc.
• Analytical Chemistry: Employed in the development and validation of analytical methods for trace metal detection in complex matrices.
• Environmental Testing: Used for monitoring heavy metal contamination in water, soil, and industrial waste samples.
• Quality Assurance/Control (QA/QC): Integral to in-process testing and final product release in metallurgical, pharmaceutical, and chemical manufacturing.
• Research & Development: Serves as a model compound in studies of azo dyes, coordination chemistry, and sensor development.
• Teaching & Education: Utilized in university laboratories for practical demonstrations of complexometric titrations and colorimetric analysis.

Basic Information

Product Name	1-(2-Pyridylazo)-2-Naphthol
CAS No.	85-85-8
Molecular Formula	C₁₅H₁₁N₃O
Molecular Weight	249.27 g/mol
Synonyms	PAN; 1-(2-Pyridylazo)-2-naphthol; α-Pyridyl-β-azonaphthol; 2-(2-Pyridylazo)-1-naphthol; 1-(Pyridin-2-yldiazenyl)naphthalen-2-ol; PAN Indicator; Pyridylazonaphthol; 2-Pyridylazonaphthol
EINECS	201-637-9

Quality Control

Our 1-(2-Pyridylazo)-2-Naphthol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification (IR), purity assay (HPLC), and loss on drying, to ensure it meets the high standards required for analytical reagent applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials. The product is light-sensitive and should be stored away from light to maintain stability.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	138°C - 142°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Solubility (in Methanol)	Clear, orange solution

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