Description

(E)-4-Methoxyazobenzene CAS NO 21650-49-7 is a high-purity, synthetic organic compound belonging to the azobenzene class of dyes and intermediates. This product is valued for its role as a key chromophore and a versatile building block in advanced material science and chemical research. It is essential for industries and research institutions focused on developing photoresponsive materials, liquid crystal displays (LCDs), and specialized organic dyes.

Application

• Photoresponsive Material Synthesis: A critical precursor for creating azobenzene-based polymers and molecules used in optical data storage, photoswitches, and smart surfaces.
• Liquid Crystal Display (LCD) Manufacturing: Serves as a dichroic dye or a dopant to enhance the contrast and performance of liquid crystal mixtures.
• Organic Dye Intermediate: Used in the synthesis of complex azo dyes and pigments for specialized applications in textiles, inks, and coatings.
• Chemical Research & Development: Employed as a standard or model compound in studies of photoisomerization, molecular electronics, and supramolecular chemistry.
• Non-linear Optical (NLO) Materials: Investigated for use in the development of materials with non-linear optical properties for photonic devices.

Basic Information

Product Name	(E)-4-Methoxyazobenzene
CAS No.	21650-49-7
Molecular Formula	C13H12N2O
Molecular Weight	212.25 g/mol
Synonyms	4-Methoxyazobenzene; p-Methoxyazobenzene; Azobenzene, 4-methoxy-; 1-Methoxy-4-(phenyldiazenyl)benzene; (E)-1-Methoxy-4-(phenyldiazenyl)benzene; 4-Methoxy-1,1'-azobenzene; Diazene, (4-methoxyphenyl)phenyl-; Azo Dye Yellow 3G (related class)
EINECS	244-503-8

Quality Control

Our (E)-4-Methoxyazobenzene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and spectroscopic methods for structural confirmation, to ensure it meets exacting research and industrial-grade specifications. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and compliance with your project requirements.

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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, handling should be conducted under appropriate conditions to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	92 - 96 °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.