Description

4-(1-Propynyl)Phthalic Anhydride is a specialized organic intermediate featuring a reactive propynyl substituent on the phthalic anhydride core. This unique structure makes it a valuable building block for synthesizing advanced materials and functional polymers. It is primarily sought by research and development teams in the pharmaceutical and advanced polymer industries for creating novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Polymer Chemistry: Monomer for the production of specialty polyimides and polyesters with enhanced thermal or mechanical properties.
• Liquid Crystal Materials: Building block for creating advanced liquid crystal compounds used in display technologies.
• Organic Synthesis: Versatile reagent for Diels-Alder reactions and other cycloaddition processes to construct complex organic frameworks.
• Agrochemical Research: Intermediate in the development of new herbicides, fungicides, or plant growth regulators.
• Dye and Pigment Synthesis: Used in the manufacture of specialized colorants and functional dyes.
• Cross-linking Agent: Imparts cross-linking functionality in epoxy resins and other thermosetting polymers.
• Material Science Research: Employed in R&D for novel organic electronic materials and coatings.

Basic Information

Product Name	4-(1-Propynyl)Phthalic Anhydride
CAS No.	1240685-26-0
Molecular Formula	C11H6O3
Molecular Weight	186.17 g/mol
Synonyms	4-Propynylphthalic Anhydride; 4-(Prop-1-yn-1-yl)phthalic anhydride; 1,3-Isobenzofurandione, 4-(1-propynyl)-; 4-(Propyn-1-yl)phthalic Anhydride; 4-(Prop-1-ynyl)phthalic Anhydride; 4-(Prop-2-ynyl)phthalic Anhydride (common misnomer); 4-Propargylphthalic Anhydride (common misnomer); PPAnh
EINECS	Contact for details

Quality Control

Our 4-(1-Propynyl)Phthalic Anhydride is manufactured under strict quality protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay and impurity profiles. We adhere to cGMP principles where applicable to support our clients in regulated research and development.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Single Unknown Impurity	≤ 1.0%

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