Description

N,N'-Thio-Bis(Phthalimide) CAS NO 7764-29-6 is a high-purity organic sulfur-nitrogen compound characterized by its symmetrical bisimide structure. This chemical serves as a critical intermediate and specialty additive, valued for its role in synthesizing advanced materials and modifying polymer properties. It is primarily sought by manufacturers in the polymer, agrochemical, and pharmaceutical industries for applications requiring thermal stability and specific reactivity.

Application

• As a key cross-linking agent and curing agent in the production of high-performance epoxy resins and polyimides.
• As an intermediate in the synthesis of sulfur-containing dyes, pigments, and optical brighteners.
• As a vulcanization accelerator precursor in the rubber industry to enhance curing efficiency and final product properties.
• In the development of pharmaceutical intermediates and agrochemical active ingredients.
• As a flame retardant synergist and thermal stabilizer in engineering plastics and specialty polymers.
• For research and development in material science, particularly in creating novel polymers with tailored thermal and mechanical characteristics.

Basic Information

Product Name	N,N'-Thio-Bis(Phthalimide)
CAS No.	7764-29-6
Molecular Formula	C16H8N2O4S
Molecular Weight	324.31 g/mol
Synonyms	Thiobisphthalimide; 2,2'-Dithiodiphthalimide; N,N'-Thiobisphthalimide; Bis(N-phthaloyl) sulfide; 1H-Isoindole-1,3(2H)-dione, 2,2'-thiobis-; Phthalimide, N,N'-thiobis-; Dithiodiphthalic acid imide; 2,2'-Thiobis(1H-isoindole-1,3(2H)-dione)
EINECS	231-850-8

Quality Control

Our N,N'-Thio-Bis(Phthalimide) is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR spectroscopy, to ensure it meets precise specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

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). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °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.