Description

Dichlorodi-p-Xylylene is a high-purity chemical intermediate of significant importance in advanced material synthesis. Its primary value lies in its role as a precursor for Parylene N coatings, which are renowned for their exceptional barrier properties and conformal deposition. This compound is essential for manufacturers in the electronics, medical device, and aerospace industries seeking ultra-thin, pinhole-free protective coatings. We supply this critical building block to global partners with a focus on consistent quality and reliable supply chain support.

Application

• Parylene N Coating Precursor: The primary application is as the starting material for the vapor deposition polymerization process to produce Parylene N films.
• Conformal Coatings for Electronics: Used to create protective, dielectric coatings on printed circuit boards (PCBs), sensors, and micro-electromechanical systems (MEMS).
• Medical Device Protection: Essential for producing biocompatible, moisture-resistant barriers on implantable devices, stents, and surgical tools.
• Aerospace & Defense Components: Applied to protect sensitive avionics and components from harsh environmental conditions, including humidity and corrosion.
• Barrier Layer in Packaging: Utilized in creating high-performance barrier layers for specialized packaging applications requiring extreme moisture and gas impermeability.
• Research & Development: Serves as a key reagent in R&D for developing new polymeric materials and thin-film technologies.

Basic Information

Product Name	Dichlorodi-p-Xylylene
CAS No.	28804-46-8
Molecular Formula	C16H14Cl2
Molecular Weight	277.19 g/mol
Synonyms	[2,2]Paracyclophane, 4,12-Dichloro-; Dichloro[2.2]paracyclophane; 4,12-Dichloro[2.2]paracyclophane; Parylene N Dimer, Chlorinated; Dichloro-di-p-xylylene; DPX; Di-p-xylylene dichloride; Parylene Precursor
EINECS	Contact for details

Quality Control

Our Dichlorodi-p-Xylylene is manufactured under stringent quality management systems to ensure batch-to-batch consistency critical for vapor deposition processes. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	285 - 295 °C
Related Substances (HPLC)	Total impurities ≤ 1.5%
Heavy Metals	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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