Description

(R*,S*)-8,9-Dibromo-5,5,12,12-Tetrabutyl-7,10-Dioxo-6,11-Dioxa-5,12-Distannahexadecane is a high-purity organotin compound featuring a unique dibrominated, distannoxane core structure. This compound matters as a versatile and highly reactive intermediate for advanced organic synthesis and materials science research. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel catalysts and functional materials.

Application

• Catalyst Precursor: Serves as a key intermediate in the synthesis of novel organotin catalysts for transesterification, polyurethane formation, and silicone curing reactions.
• Pharmaceutical Intermediate: Used in research-scale synthesis of complex molecules, leveraging its reactive bromine and tin centers for selective bond formation.
• Polymer Additive & Stabilizer: Investigated for use as a heat stabilizer in PVC formulations or as a functional monomer for creating tin-containing polymers with specific properties.
• Material Science Research: Employed in the development of novel organometallic frameworks (OMFs) and hybrid inorganic-organic materials.
• Agrochemical Synthesis: Acts as a building block for creating experimental fungicides or acaricides that utilize organotin chemistry.
• Cross-Coupling Reactions: Functions as a stamane reagent in Stille cross-coupling reactions for constructing complex carbon-carbon bonds in fine chemical synthesis.

Basic Information

Product Name	(R*,S*)-8,9-Dibromo-5,5,12,12-Tetrabutyl-7,10-Dioxo-6,11-Dioxa-5,12-Distannahexadecane
CAS No.	31732-71-5
Molecular Formula	C24H48Br2O4Sn2
Molecular Weight	862.86 g/mol
Synonyms	8,9-Dibromo-5,5,12,12-tetrabutyl-7,10-dioxo-6,11-dioxa-5,12-distannahexadecane; Dibromodibutyltin Oxide Dimer; 1,3-Dibromo-1,1,3,3-tetrabutyl-2,4-dioxa-1,3-distannacyclobutane; Tetrabutyldibromodistannoxane; Organotin Bromide Dimer; Stannoxane Dimer, dibrominated; (Dibromodibutylstannylene)oxide Dimer
EINECS	Contact for details

Quality Control

Our (R*,S*)-8,9-Dibromo-5,5,12,12-Tetrabutyl-7,10-Dioxo-6,11-Dioxa-5,12-Distannahexadecane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing including NMR (1H, 13C, 119Sn), HPLC, and elemental analysis to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are provided to support your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Tin (Sn) Content	26.5 - 28.0 %
Bromine (Br) Content	18.0 - 19.0 %
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.