Description

Phthalidyltheophylline is a specialized theophylline derivative, primarily utilized as a key pharmaceutical intermediate. This compound is valued for its role in the synthesis of advanced drug formulations, offering a pathway to more effective and targeted therapeutic agents. It is essential for research and development laboratories, as well as production facilities, in the pharmaceutical and fine chemical sectors seeking to develop or manufacture respiratory and cardiovascular medications.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of modern bronchodilator and anti-asthmatic drugs.
• Active Pharmaceutical Ingredient (API) Development: Used in research for developing new theophylline-based therapeutics with modified release profiles or reduced side effects.
• Biochemical Research: Serves as a standard or reagent in studies investigating adenosine receptor antagonism and related physiological pathways.
• Fine Chemical Synthesis: Employed in custom synthesis and contract manufacturing for producing high-value, complex organic molecules.
• Reference Standard: Used in analytical laboratories for quality control and method development via techniques like HPLC and LC-MS.

Basic Information

Product Name	Phthalidyltheophylline
CAS No.	107745-64-2
Molecular Formula	C₁₆H₁₄N₄O₄
Molecular Weight	326.31 g/mol
Synonyms	1,3-Dimethyl-7-(2,6-dioxo-3-piperidyl)xanthine; 7-(2,6-Dioxo-3-piperidyl)theophylline; 3-(1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)piperidine-2,6-dione; Phthalidyl Theophylline; Theophylline phthalidyl ester; Doxofylline Impurity; Doxofylline Related Compound
EINECS	Contact for details

Quality Control

Our Phthalidyltheophylline is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the high standards required for pharmaceutical intermediate applications. Certificates of Analysis (COA) with detailed HPLC/GC data are provided to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single unknown impurity ≤ 0.5%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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