Description

Bis(Methanesulfonic Acid)Dipropylstannylene Ester is a specialized organotin compound used as a catalyst and intermediate in advanced organic synthesis. Its value lies in its ability to facilitate specific coupling and esterification reactions with high selectivity and efficiency. This chemical is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and fine chemical industries developing novel active ingredients and performance materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly in esterification and transesterification steps.
• Polymerization Catalyst: Acts as a catalyst or co-catalyst in the production of polyesters, polycarbonates, and other specialty polymers.
• Agrochemical Synthesis: Serves as a key building block in the manufacture of herbicides, fungicides, and plant growth regulators.
• Cross-Coupling Reactions: Employed as a tin-based reagent in Stille-type cross-coupling reactions to form carbon-carbon bonds.
• Fine Chemical Production: Utilized in the synthesis of complex fragrance and flavor compounds, as well as dyes and pigments.
• Material Science Research: Investigated for use in creating novel organometallic frameworks and advanced catalytic systems.

Basic Information

Product Name	Bis(Methanesulfonic Acid)Dipropylstannylene Ester
CAS No.	73927-87-4
Molecular Formula	C8H18O6S2Sn
Molecular Weight	377.06 g/mol
Synonyms	Dipropyltin Methanesulfonate; Dipropylstannylene Dimethanesulfonate; Dipropyltin Bis(methanesulfonate); Stannane, bis(methanesulfonato-O)dipropyl-; Tin, bis(methanesulfonato)dipropyl-; Propyltin Methanesulfonate Ester; Organotin Catalyst 73927-87-4
EINECS	Contact for details

Quality Control

Our production of Bis(Methanesulfonic Acid)Dipropylstannylene Ester adheres to strict quality management protocols. Each batch is analyzed to ensure high purity and consistency, with key parameters verified via modern analytical techniques. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Tin (Sn) Content	30.0 - 32.0 %
Water Content (KF)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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