Description

2,2-Dibutyl-1,3-Dioxa-7,9-Dithia-2-Stannacyclododecane-4,12-Dione is a specialized organotin compound featuring a unique macrocyclic structure that integrates both dioxa and dithia moieties. This molecular architecture is critical for its function as a highly effective stabilizer and catalyst in polymer systems, particularly for preventing thermal degradation. It is an essential material for manufacturers in the PVC, polyurethane, and specialty polymer industries who require advanced additive solutions to enhance product longevity and processing stability.

Application

• Primary Stabilizer for Rigid PVC: Used in pipes, profiles, and fittings to provide excellent long-term heat stability during processing and in-service.
• Co-stabilizer in Flexible PVC Formulations: Enhances the performance of mixed metal stabilizers in applications like cables, flooring, and synthetic leather.
• Catalyst for Polyurethane and Silicone Elastomers: Facilitates cross-linking and curing reactions due to its organotin core.
• Additive for High-Performance Lubricants and Greases: Acts as an anti-wear and extreme pressure agent.
• Intermediate in Organic Synthesis: Serves as a precursor or reagent for synthesizing more complex organometallic compounds.
• Stabilizer for Other Halogen-Containing Polymers: Provides stabilization for CPVC (Chlorinated Polyvinyl Chloride) and related materials.

Basic Information

Product Name	2,2-Dibutyl-1,3-Dioxa-7,9-Dithia-2-Stannacyclododecane-4,12-Dione
CAS No.	3231-93-4
Molecular Formula	C₁₈H₃₂O₄S₂Sn
Molecular Weight	503.28 g/mol
Synonyms	Dibutyltin Bis(2-mercaptoethyl) Ether Maleate; Dibutyltin Maleate Mercaptoethyl Ether; Dibutyltin Maleate (2-Mercaptoethyl) Ether; DBTMEE; Stanclere T-290; Advastab TM-692; 2,2-Dibutyl-7,9-dithia-1,3-dioxa-2-stannacyclododecane-4,12-dione; Dibutyltin maleate β-mercaptoethyl ether
EINECS	221-779-4

Quality Control

Our production of 2,2-Dibutyl-1,3-Dioxa-7,9-Dithia-2-Stannacyclododecane-4,12-Dione adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against comprehensive specifications, including organotin content, purity, and key impurity profiles. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to meet specific customer or regulatory requirements, including those relevant to global polymer additive standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. Due to potential moisture sensitivity, the container should be kept tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Tin Content)	23.0 - 24.5 %
Purity (HPLC)	≥ 95.0 %
Color (Gardner)	≤ 5
Density (at 20°C)	1.25 - 1.35 g/cm³
Refractive Index (n20D)	1.520 - 1.540

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