Description

1-Methylnaphthalene is a high-purity, monocyclic aromatic hydrocarbon widely used as a key intermediate and reference standard in industrial chemistry. Its well-defined chemical structure and consistent reactivity make it a critical component for synthesizing advanced materials and fine chemicals. This product is essential for manufacturers and R&D laboratories in the agrochemical, dye, and specialty chemical sectors seeking reliable performance and batch-to-batch consistency.

Application

• Chemical Intermediate: A vital building block in the synthesis of dyes, pigments, and agrochemicals.
• Solvent & Carrier Fluid: Used in specialized formulations and as a component in high-temperature heat transfer fluids.
• Analytical Reference Standard: Serves as a critical standard in gas chromatography (GC) and other analytical methods for calibrating equipment and identifying complex hydrocarbon mixtures.
• Fuel & Lubricant Research: Employed as a model compound in studies of combustion chemistry, cetane number determination, and lubricant additive development.
• Pharmaceutical Synthesis: Acts as a precursor in the multi-step synthesis of certain active pharmaceutical ingredients (APIs).
• Organic Electronics: Investigated as a starting material for creating organic semiconductors and conductive polymers.

Basic Information

Product Name	1-Methylnaphthalene
CAS No.	90-12-0
Molecular Formula	C₁₁H₁₀
Molecular Weight	142.20 g/mol
Synonyms	α-Methylnaphthalene; α-Methylnaphthalene; 1-Methylnaphthalin; 1-MN; Methylnaphthalene (mixed isomers may be specified); NSC 9249
EINECS	201-966-8

Quality Control

Our 1-Methylnaphthalene is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including GC and GC-MS, to ensure high purity and the absence of critical impurities. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support global supply chains and can provide documentation for REACH compliance upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent evaporation and minimize moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.615 - 1.618
Density (20°C)	1.020 - 1.025 g/mL
Boiling Point	240 - 245 °C

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