cas no 643 79 8 ortho phthaldialdehyde 99% Min Pale Yellow Crystal Chemical Intermediate

Product Description

O-Phthalaldehyde (OPA, CAS No. 643-79-8) is a high-quality aromatic dialdehyde widely used as an important intermediate in chemical synthesis and specialty chemical applications. The product appears as pale yellow crystalline solid under ambient conditions and is characterized by its high purity, well-controlled melting range, and extremely low moisture content. These properties ensure reliable performance during downstream processing and formulation.

Manufactured under strict quality management systems, this O-Phthalaldehyde is produced using carefully selected raw materials and optimized production processes to achieve consistent batch-to-batch quality. The purity reaches 99.0% minimum, with typical results exceeding this standard, making it suitable for applications requiring precise chemical composition and high reactivity. The controlled melting point range allows for convenient handling, storage, and processing in both laboratory and industrial environments.

Due to its stable physicochemical properties, OPA is commonly applied as a key intermediate in pharmaceutical synthesis, fine chemical production, and research applications. Its low water content effectively reduces the risk of side reactions, improving yield and efficiency in chemical reactions. When stored in a cool, dry, and well-ventilated environment with proper packaging, the product maintains excellent stability throughout its shelf life.

Each batch is supplied with a complete Certificate of Analysis (COA), ensuring full traceability and compliance with agreed specifications. Packaging options can be adjusted according to customer requirements to support safe transportation and long-distance shipment. This product is intended for industrial and professional use only.

Typical Specifications