Description

Tri-n-Butyltin Propionate is a high-purity organotin compound with the CAS registry number 5863-72-9. This chemical is valued for its potent biocidal and catalytic properties, making it a critical intermediate in specialized industrial syntheses. It is primarily sought by manufacturers in the polymer, agrochemical, and specialty chemical sectors for applications requiring precise and reliable performance.

Application

• PVC Stabilizer: Acts as a highly effective heat and light stabilizer in the production of rigid and flexible polyvinyl chloride (PVC) products.
• Biocide Intermediate: Serves as a key precursor in the synthesis of advanced fungicides, algicides, and antifouling agents for paints and coatings.
• Catalyst: Used as a catalyst or co-catalyst in specific esterification and transesterification reactions within fine chemical manufacturing.
• Wood Preservative: An active component in formulations designed to protect timber from fungal decay and insect damage.
• Silicone Curing Agent: Employed in the curing process of certain room-temperature-vulcanizing (RTV) silicone rubbers.
• Research & Development: Utilized in academic and industrial R&D for studying organometallic chemistry and developing new material science applications.

Basic Information

Product Name	Tri-n-Butyltin Propionate
CAS No.	5863-72-9
Molecular Formula	C15H30O2Sn
Molecular Weight	349.10 g/mol
Synonyms	Tributyltin Propionate; TBTP; Stannane, tributylpropionyloxy-; Propanoic Acid, Tributylstannyl Ester; Tributylstannyl Propionate; NSC 175158; Tri-n-butyltin Propanoate; Tributyl(1-oxopropoxy)stannane
EINECS	227-516-5

Quality Control

Our Tri-n-Butyltin Propionate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed against stringent in-house specifications, which typically include identity confirmation by FT-IR, purity assay by titration or GC, and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

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 heat, open flames, and incompatible materials such as strong oxidizing agents and acids. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to standard
Assay (GC/Titration)	≥ 95.0%
Tin (Sn) Content	33.0 - 35.0 %
Specific Gravity (20°C)	1.15 - 1.25
Refractive Index (20°C)	1.480 - 1.500

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